Assa 34, 32 User Manual

PN# 500-10420
Rev. A.5, 8/03

SECURITRON 32, 34, 62 AND 82 SERIES MAGNALOCK

TABLE OF CONTENTS AND GUIDE TO THIS MANUAL

There are numerous Magnalock versions and numerous different applications exist for them.
Accordingly, this manual provides a broad range of information- only a portion of which is
applicable to any individual use. This manual guide provides a brief summary of many of the
Sections which allows you to consult only the portions of the manual that apply to your
application.

SECTION 1. DESCRIPTION --------------------------------------------------------------------Page 1

SECTION 2. PHYSICAL INSTALLATION---------------------------------------------------Page 1

This is the largest part of the manual with sections that explain the different types of physical
installations which vary according to door or gate types as well as Magnalock versions.

SECTION 2.1 SURVEY---------------------------------------------------------------------------Page 1

This section concerns how to pre-plan the installation.

SECTION 2.2 INSTALLATION TOOL KIT --------------------------------------------------Page 1

This section explains an available accessory.
SECTION 2.3 GENERAL INSTALLATION ON OUTSWINGING DOOR------------Page 1
SECTION 2.3.1 STRIKE PLATE MOUNTING----------------------------------------------Page 1
SECTION 2.3.2 MOUNTING THE MAGNET------------------------------------------------Page 3

The above three sections explain the most common Magnalock installation on a door that

swings away from the lock. They also include general mounting instructions and should

therefore be read for all installations.
SECTION 2.4 GENERAL INSTALLATION ON INSWINGING DOOR ---------------Page 5

This section explains installation of "F" type Magnalocks on inswinging doors.
SECTION 2.5 MOUNTING PROCEDURES FOR SPECIFIC DOOR TYPES-------Page 7

The following seven sections provide specific advice depending on door type which includes

recommended bracketry.
SECTION 2.5.1 ALUMINUM FRAME GLASS DOOR MOUNTING-------------------Page 7
SECTION 2.5.2 THE UMB BRACKET FOR ALUMINUM AND CONCRETE-------Page 8
SECTION 2.5.3 SOLID GLASS DOOR MOUNTING -------------------------------------Page 8
SECTION 2.5.4 DOUBLE DOOR MOUNTING---------------------------------------------Page 10
SECTION 2.5.5 DM-62 DOUBLE 62 LOCK-------------------------------------------------Page 10
SECTION 2.5.6 CONCRETE HEADER OR WOOD FRAME MOUNTING ----------Page 10
SECTION 2.6 MOUNTING THE MAGNALOCK ON EXTERIOR GATES-----------Page 11

This section, which includes three drawings, covers outdoor use of the Magnalock on a

variety of gate types.
SECTION 2.7 USE OF DRESS COVERS ---------------------------------------------------Page 13

This section introduces the Dress Cover which is used after physical mounting to improve

installation appearance and tamper resistance.
SECTION 2.8 TAMPER PROOFING THE MAGNALOCK ------------------------------Page 14

This section should be read for any installation in a high vandalism area.

© Copyright, 2003, all rights reserved • Securitron Magnalock Corp., 550 Vista Blvd., Sparks NV 89434, USA

Tel: [phone] • (800) MAGLOCK • Fax: [phone] • Website: www.securitron.com

An ASSA ABLOY Group company

Rev. A.5, 8/03

SECTION 3. ELECTRICAL INSTALLATION -----------------------------------------------Page 14
SECTION 3.1 GENERAL ELECTRICAL CHARACTERISTICS -----------------------Page 14

This section explains technically the Magnalock's electrical characteristics as a load and is

for reference.
SECTION 3.2 STANDARD LOCK-------------------------------------------------------------Page 14

This section explains powering and switching the Magnalock.
SECTION 3.3 AVOIDING POOR RELEASE CHARACTERISTICS ------------------Page 15

This section warns against wiring mistakes specific only to the model 32 series.
SECTION 3.4 WIRE GAUGE SIZING---------------------------------------------------------Page 15

This reference section explains how to select wire size for applications where the lock is

distant from the power supply.
SECTION 3.5 SENSTAT MAGNALOCKS: “SC”------------------------------------------Page 16

Read this section if you have a Senstat Magnalock.
SECTION 3.6 DOUBLE DOOR PROCEDURE FOR STATUS REPORTING ------Page 16

This section applies if you have Senstat locks on a double door and want them to report as

a single lock.
SECTION 3.7 DOUBLE DOOR CONTROL SWITCHING -------------------------------Page 17

This section applies whenever you have two locks controlled by a single switch.
SECTION 3.8 EMERGENCY RELEASE-----------------------------------------------------Page 17

This section should be understood by all installers.

APPENDIX A TROUBLESHOOTING---------------------------------------------------------Page i

Refer to this section before calling the factory on any operating problem.
APPENDIX B CALCULATING WIRE GAUGE SIZING-----------------------------------Page ii

This detailed reference section explains how to select wire gauge in complicated multi-lock

installations.
APPENDIX C CONSIDERATIONS FOR MAXIMUM PHYSICAL SECURITY------Page iii

This reference section explains the technical aspects of lock holding force and resistance to

attack. It contains numerous installation techniques which act to insure high lock security. It

must be read for high security applications and also has excellent educational value.

Rev. A.5, 8/03

Use of the Magnalock (or any lock) can lead to an unsafe
condition within the building if it is controlled in a manner that
improperly restricts passage through certain doors. The most
important area of concern is to insure that building evacuation is
not impeded in the event of a fire or other emergency condition.
Consult with the local building or fire department to insure that
the controls installed with the Magnalock create a safe and
code legal installation.

The Magnalock has an unlimited operating life and receives a
great deal of cumulative shock over this life from the door
closing and from persons attempting to open the door when it is
secured. It is therefore vital that it be firmly mounted to the door
header. If this is not done, a person's use of the door could
cause the magnet body to fall and possibly cause an injury.
The blind nuts furnished with the Magnalock will create strong
and permanent mounting when correctly collapsed inside the
header. If they are not collapsed, an unsafe condition will
result. Make sure you understand section 2.3.2 in the manual
on magnet mounting and collapsing the nuts.

- SHOCK HAZARD. The Magnalock must

be operated from a DC power supply of appropriate capacity
and voltage. The DC output of the power supply must not be
connected to earth ground but must be isolated, or a shock
hazard and possible damage to the product could result. All
Securitron power supplies are delivered with isolated DC
outputs and the majority of commercial supplies are also
furnished this way. If you are not certain that the DC outputs of
your power supply are isolated, check with an Ohmmeter
between earth ground and +V, and then between earth and 0V
(negative). You should not have continuity.

Rev. A.5, 8/03 Page- 1

SECURITRON 32, 34, 62 AND 82 SERIES MAGNALOCK

INSTALLATION INSTRUCTIONS

1. DESCRIPTION

Securitron’s Magnalock family represents the state of the art in electric locking. Three different
size models are available: The Model 32 and Model 34 series with a holding force of 600 lbs.
(275 Kg.); The Model 62 series with a holding force of 1,200 lbs. (550 Kg.) and the model 82
series with a holding force of 1,800 lbs. (820 Kg.). Several mounting and electronic options are
available which are described in this manual. Note that most points in this manual apply to the
entire Magnalock series. When a point applies to a particular Magnalock version, this will be
specifically noted.

2. PHYSICAL INSTALLATION

2.1 SURVEY

Because of the wide variety of situations in which the Magnalock may be utilized, first survey the
physical area in which it is to be installed and determine the best method of mounting it. In this
initial planning two considerations come into play: the mounting method must be strong enough
so that the full holding power of the Magnalock can be effective, and the Magnalock and wiring
must be protected to a reasonable degree from damage by intruders or vandals. Often an
accessory bracket is necessary, either furnished by Securitron or made up by the installer. The
brackets that can be used are covered later. Note that Magnalocks are supplied with a
complete set of fasteners. When shipped outside of North America, metric fasteners are
supplied and therefore the drawings in this manual show both US and metric fasteners.

2.2 INSTALLATION TOOL KIT

Securitron offers an installation tool kit (part # IK or IKM, for metric use) which includes special
drills, a drilling template, a blind nut collapsing tool and extra fasteners and hardware. If the
installation is for a large number of locks or if the installer expects to perform other installations,
we recommend the purchase of this kit as it reduces installation labor and improves job quality.

2.3 GENERAL INSTALLATION ON OUTSWINGING DOOR

The Magnalock should be mounted under the door frame header in the corner farthest from the
hinges (see Figure 5). Most commonly, it is positioned horizontally but vertical positioning
should also be considered. In some cases for example, the horizontal header on an aluminum
frame glass door is not as strong as the vertical extrusion, so vertical mounting would be
preferred. This type of installation places the Magnalock such that the door swings away from it.
This configuration is necessary for all facility exit doors (otherwise, the Magnalock would be on
the outside of the building). For interior doors, the Magnalock should still be mounted in this
manner unless security planning anticipates a physical assault on the Magnalock from that side
of the door in which case see section 2.4 on inswinging door installation.

2.3.1 STRIKE PLATE MOUNTING
The strike should be mounted before the magnet on the upper corner of the door. The first

step is to locate the precise place you intend to mount the strike including deciding whether you

want to mount the Magnalock horizontally or vertically (see Section 2.3.2). The top of the strike
should be positioned about 1/10" (2.5mm) below the line where the door meets the door
stop, or below the header if there is no door stop to permit free closing. If the strike is
mounted vertically instead of horizontally, increase this stand-off distance to 2/10" (5mm).
More clearance is needed on a vertical mount because the strike projects out from the door and
can scrape the side frame as the door swings closed on its arc. Final positioning of the strike is
dictated by the desired position of the magnet. The strike must be centered on the magnetic
poles (3 bars) and the magnet is normally moved an inch or so in (or down) from the frame
corner so that the magnet mounting holes will not have to be drilled awkwardly in the corner.

When the strike position has been chosen, step two is to drill three holes in the door following
the template. Step three is mounting the white plastic bushings which surround and insulate
the roll pins into the 1/2" (12.7mm) holes. The bushings are employed to insulate the strike
electrically from a metal door and also help prevent the roll pins from wearing the door.

Rev. A.5, 8/03 Page- 2

FIG. 1: STEPS IN MOUNTING THE STRIKE

STEP 1 : LOCATE STRIKE PO SITION ON DOOR

STEP 3: INSERT

STEP 2: DRILL 3 HOLES IN DOOR
FOLLOWIN G TH E TEMPLAT E

PLASTIC BUSHINGS

STEP 6: INSTALL
2 OR 3 RUB BER
WASHERS
ON STRIKE
MOUNTING
SCREW

STEP 4: LIGHTLY HAMM ER
IN ROLL PINS,

STEP 7: SECURE STRIKE TO DOOR USING SEX BOLT (SEE FIGURE 5)
STEP 8: VERIFY MOUNTI NG

STEP 5: INSERT STRIKE
MOUNTING SCREW THROUGH
WHITE PLASTIC BUSHING

Step four is to insert roll pins furnished with the strike. The pins are hammered into the strike
but be careful not to hit them too hard as it is possible to raise dents on the strike surface by
over driving the pins which degrades strike flatness and therefore holding force. In step five, the
strike is secured by the central strike mounting screw. In step six two flexible washers are then
placed between the strike and the door with the strike mounting screw passing through the
washers to provide flexibility. A third rubber washer is furnished. This is not normally used but
may be employed in case the spacing of the magnet and strike is a little off. Adding the third
washer will move the strike closer to the magnet. Do not place the washers around the roll
pins. The roll pins should "float" in their holes and not bind. Their only purpose is to prevent
the strike from rotating or spinning.

In step seven, the strike is secured to the door via the supplied sex bolt. Note that we supply a
massive 1 1/4” diameter sex bolt as it is the only point of attack from the outside of the door. It
can be difficult to align the strike mounting screw with the sex bolt, so the following technique is
recommended: Start the sex bolt in its 1/2" (12.7 mm) hole but thread the strike mounting screw
into it (with strike plate and washers) before hammering the sex bolt down. Next, hammer the
sex bolt down and then screw the strike mounting screw in the rest of the way. This makes
alignment much easier.

Step eight is to verify proper mounting. When the strike is mounted, make sure it flexes
freely around the washer stack. This flexing allows the Magnalock to pull the strike into

perfect alignment for maximum holding force. It is never possible for a door and frame to line
up well enough for the Magnalock to function unless the strike is allowed to flex.

Rev. A.5, 8/03 Page- 3

FIG. 2: STANDARD MAGNET DIMENSIONS AND ASSEMBLY

If "G" option is furnished, (62
and 82 series only), the wire
cable emerges from a 3/4"
male; 1/2" female conduit
fitting on the end of the
magnet. The mounting holes
are counterbored from both
sides to make the magnet
non-handed

Blind Nut
PN# BN-250 or
PN# BN-6MM (Metric)
(Pack of 40 with tool)

Gold Washer
PN# FW-1
(Pack of 24)

32 8" 1.88 1.5
(mm) 203 47.8 38.1
34 9.5" 1.75 1.125
(mm) 241 44.5 28.6
62 8" 2.9 1.75
(mm) 203 73.7 44.5
82 12" 2.9 1.75
(mm) 305 73.7 44.5

2

6

l

e

d

o

M

2

3

l

e

d

o

M

Length Width Depth

Recommended Tools:
1/2" or 3/8" Drill Motor
1/8", 3/8", 1/2" Drill Bits
1/2" Open or Crescent Wrench
3/16" Hex Key (Allen Wrench)
Hammer, Center Punch
Masking Tape, Fish Tape or
Leed Wire
Wire Strippers/Cutters
Crimp Wire Connectors
Multi-Meter

1/4-20 x 3" Cap Screw
PN# SCS-35 (Pack of 4)
6mm-1mm x 75mm
PN# 300-12650

Tamper Cap
PN# FC-1
(Pack of 24)

1/4-20 x 2 1/4" Cap Screw
PN# 300-12750 or
6mm-1mm x 55mm
PN# 300-12925
(For Model 32 Magnalock)

2.3.2 MOUNTING THE MAGNET
Step one is to locate the mounting position of the magnet. It will mount in the door frame

header with four socket cap machine screws for metal frames or wood screws for wood frames.
In mounting the Magnalock, six conditions must be followed:

-- The frame header must present a flat surface for the magnet to mount to. 1 7/8” (48mm) for
the model 34, 2 1/4” (57mm) for the model 32 and 2 1/2" (63.5mm) for the model 62 and 82 are
required from the door to the rear of the magnet for proper mounting (as shown in Figure 5). If
this length of flat surface is not available, the use of stop filler plates and/or header brackets
available from Securitron can usually resolve the problem. Again, refer to Figure 5.

-- The frame area selected must be structurally strong enough to yield a properly secure
installation. The issue of frame strength must be considered in selecting vertical or horizontal
mounting. One often finds on aluminum headers that the horizontal extrusion is weak and can
be snapped off, so vertical mounting would be preferred. It is also possible to reinforce the
header by adding a steel plate. The installer must avoid mounting the magnet to a wobbly or
weak support or the intrinsic security of the lock will be diminished.

-- The magnet face must be parallel to the strike plate.

-- The magnetic poles (three metal bars on the Magnalock), must be centered on the strike.

-- The magnet must make solid contact with the strike but still allow the door to close properly.

-- The direction of door opening must pull the strike directly away from the magnet rather than
sliding it away. Electromagnets hold only weakly in the shear direction of pull.

Rev. A.5, 8/03 Page- 4

FIG. 3: STRIKE DIMENSIONS AND ASSEMBLY

Sex Bolt, Models 32, 62, 82, PN# SB-1, SB-1M (Metric)
Model 34, PN# 330-12650, 330-12750 (Metric)

R

u

P

N

#

RW

b

b

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r

W

a

-

s

1

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P

a

c

k

Bushing (2), PN# 560-12050

e

r

(

2

)

o

f

2

4

)

Roll Pin (2), PN# 330-10800
1/4" x 1 1/4"

Length Width Depth
32 6.25" 1.62 .55
(mm) 158.8 41.1 14.0
34 6.4" 1.44 .44
(mm) 162.6 36.6 11.2
62 6" 2.75 .52
(mm) 152.4 69.9 13.2
82 9.5" 2.75 .52
(mm) 241.3 69.9 13.2

Flathead Screw Models 32, 62, 82
5/16-18 x 1 3/4" P/N# 300-13600,
8mm-1.25mm x 40mm PN# 300-13750 (Metric)
Model 34: 1/4-20 x 2" PN# 300-12470,
6mm x 1.0mm x 50mm P/N# 300-12480 (Metric)

Bushing,
Model 32,62,82
PN# 330-12000
M34, PN# 330-11900

Once a solid flat surface has been prepared for the magnet, it must be positioned so that its face
is parallel and centered to the strike plate. When the magnet has been experimentally
positioned this way, it's ready for mounting.

In step two, holes must be drilled for the mounting screws, and a 1/2" (12.7mm) diameter wire­way hole should be drilled. Step three is to install the blind finishing nuts. For proper strength,
the 1/4-20 (or 6mm) mounting machine screws must be secured by these nuts. They will work
on any thickness metal header and are used as follows: A 3/8" (9.5 mm) hole is drilled following
the template for each nut. The nut is then pressed up into the hole and lightly seated with a
hammer tap. The nut is then collapsed inside the header. If you have Securitron's IK
installation kit, the nuts may be collapsed by the use of the blind nut placement tool. A special
collapsing tool is also included with each Magnalock. It is somewhat slower to use than the
more elaborate tool found in the installation kit. For its use, see Figure 4.

Step four is to make the necessary wire connections. Step five is to mount the magnet via the
supplied machine screws (see Figure 2). Don't forget to use the gold flat washers. They
prevent the narrow screw heads from digging into the resin which could cause damage. Tighten
the screws to a snug fit only. Use the supplied thread-lock on the screw threads to avoid the
possibility of the screws loosening over time. Do not drill out the mounting holes to make for
an easier fit. You may cut an internal wire and void the warranty.

Rev. A.5, 8/03 Page- 5

FIG. 4: COLLAPSING THE BLIND NUTS

COLLAPSES WHEN CAP SCREW
IS TURNED WITH ALLEN WREN CH

DRILL 3/8" (9.5MM) HOLE

PRESS IN BLIND
NUT AS SHOWN

HOLD WITH WRENCH OR

VISE GRIP WHILE TURNING

CAP SCREW

WHILE TOOL IS H ELD FAS T
WITH BOX WRENCH

BLIND NUT

HEADER
KNURL

TOOL

TWO FLAT WASHERS
IF SCREW IS STIFF TO TU RN,
ADD L UBRICANT T O WASHERS

WHILE TURNING WITH ALLEN
WRENCH, PRESS IN TO KEEP

NUT SEATED IN HEADER

CAP SCREW

1/4-20 X 1" (US) OR

6MM-1MM X 25MM (METRIC)

FIG. 5: TYPICAL MOUNTING ON OUTSWINGING DOOR

Blind Nuts

Stop

Washer Stack

Sex Bolt

Header Bracket if
frame is too narrow

Stop Filler Plate if
stop is too narrow

1/4-20 (6mm)
Mounting Screws

Model 62 or 82 is shown
with four magnet mounting
screws. Model 32 or 34
employs only two.

Strike

Magnet Body

Door

.75"

(19mm)

2.5"

(63.5mm)

Tamper Caps
(One shown)

2.4 GENERAL INSTALLATION ON INSWINGING DOOR WITH Z BRACKET

In cases where the Magnalock must be mounted on the inswinging side of the door to protect it
from physical assault, the magnet body is mounted flush on the wall above the door frame and a
"Z" bracket is affixed to the door which positions the strike in front of the Magnet (part # Z-32,
Z-62 or Z-82 with the suffix “M” for metric). The model 34 series is not offered in a face
mount version. Securitron's "F" series Magnalocks are used, as they have mounting holes
through the face of the magnet and wire exit to the rear. Figure 6 shows this configuration.

Note that the model 62F has five mounting holes through the face. The “extra” hole is to
provide flexibility in mounting when the magnet body is positioned partly on the top of the
door frame and partly on the wall. In that instance, it becomes possible to secure the model 62
magnet body with three screws which all go into the frame header (many wall types such as

Rev. A.5, 8/03 Page- 6

sheet rock do not constitute a secure mounting substrate). Note that when the roll pin bushings
are used, they protrude through the Z bracket and interfere with the Z bracket cover. If a
Senstat lock is being employed, the roll pin bushings must be used to provide insulation. They
should be cut with a hacksaw to function in the bracket. If the lock is not Senstat, omit use of
the roll pin bushings and drill 3/8" (9.5mm) diameter holes for the roll pins instead of 1/2"
(12.7mm). Read sections 2.3, 2.3.1, and 2.3.2 for additional general information on mounting.

FIG. 6: F MAGNET DIMENSIONS

If "G" option is furnished, the

Blind Nut
PN# BN-250 or
PN# BN-6MM (Metric)
(Pack of 24 with tool)

Model 62F

wire cable emerges from a 3/4"
male; 1/2" female conduit fitting
on the end of the magnet (62
and 82 models only)

1/4-20 x 2 1/2" Cap Screw
PN# SCS-25 or
6mm-1mm x 60mm
PN# SCS-60mm (Metric)
Pack of four screws

)

4

2

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a

a

P

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W

1

-

d

l

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W

F

G

N#

P

Tamper Cap
PN# FC-1 (Pack of 24)

Model 32F

Length Width Depth
32 8" 1.88 1.5
(mm) 203 47.8 38.1
62 8" 2.9 1.75
(mm) 203 73.7 44.5
82 12" 2.9 1.75
(mm) 305 73.7 44.5

Rev. A.5, 8/03 Page- 7

FIG. 7: F MAGNALOCK MOUNTING

Architectural Cover slides on
last with open side up and is
attached with supplied double

Roll pin plastic bushing
require 1/2" (12.7mm)
holes and must be
shortened to work in Z
bracket. Roll pin bushings
may be omitted if lock is
not Senstat. Then drill 3/
8" (9.5mm) holes for roll
pins.

Sex Bolt
Drill 1/2" (12.7mm) hole

Strike

Magnet

Header

Z Bracket

Cap Screw:
5/16" x 18, PN# 300-13500 or
8mm-1.25mm, PN# 300-13425 (metric)

stick tape

Z Bracket

T-Nut requires 3/8" (9.5mm) Dia
hole in bracket and accepts
strike mounting screw

Use 1" mounting screw supplied
with Z bracket, PN# 300-13400
or 300-13450 (metric)

Washer Stack

#14 Hex Sheet Metal Screw (2)
PN# 300-13200

Door

2.5 MOUNTING PROCEDURES FOR SPECIFIC DOOR TYPES

2.5.1 ALUMINUM FRAME GLASS DOOR MOUNTING

This is a common door type that utilizes the Magnalock. Certain mounting problems can arise
depending on the configuration of the door and frame. Often, the header is not wide enough for
the depth of the magnet. This can mean that none of the mounting screws can be run into the
header or that in the case of the model 62 and 82, only two of the four will fit. Another aspect of
the mounting screw problem is that the screws might line up with the end of the header
extrusion. Also the wires may exit beyond the end of the header so that they will be exposed
and vulnerable to tampering.

Most of the problems are solved by the use of Securitron's Universal Header Bracket (part #
UHB-CL or UHB-BK). This bracket will function with the model 32, model 34 or model 62
Magnalock. A separate version (UHB-82) is offered for use with the longer model 82. The UHB
extends the depth of the header either 1" (25mm) or 1 1/2" (38mm) depending on which way it's
oriented. This usually allows mounting of all screws and since the bracket is itself a hollow
extrusion, the wire is run inside the bracket and therefore is hidden. Even with use of the
bracket, it is possible that one set of mounting screws may line up with the end of the header
when the model 62 or 82 is used. To deal with this situation, some adjustment of the magnet
mounting position is possible. Instead of the two rubber washers supplied with the strike, one or
three may be used. If the door is secured only by the Magnalock (there is no mechanical
swingbolt) the door closed position may be altered to allow all mounting screws to be used.
Finally note that a model 62 installation on this type of door is acceptable if only two mounting
screws are used. Since the screws run into steel nuts, the fastening technique is very strong. It
is best to use all four screws, but particularly on this type of door, which is inherently not high
security (the glass may be shattered for forced entry) firmly mounting two screws is acceptable.

Aluminum frame headers typically employ a “blade” stop which is far too thin to provide a
mounting surface for the magnet. Note that Figure 5 shows the Magnet mounting on the door
stop. Accordingly, on aluminum frame glass doors, the magnet body mounts directly onto the
header. This can be accomplished by cutting away a section of the blade stop. This technique
is preferred in that the projection of the magnet into the opening is minimized. An alternate

Rev. A.5, 8/03 Page- 8

method is to space the magnet down so as to clear the blade stop. This generally requires 1/2”
of spacing (12.7mm) and Securitron offers brackets of the appropriate width with pre-drilled
clearance holes for the Magnet mounting screws. These are the ASB-32, ASB-62 or ASB-82
(with finish suffix CL or BK). Figure 8 shows the use of the Aluminum Shim Bracket (ASB).
Note that this bracket is not offered with the model 34. The UMB-34 bracket accomplishes the
same function.

FIG. 8: USE OF THE ASB BRACKET ON ALUMINUM DOOR/FRAME WITH BLADE STOP

BLADE

HEADER

DOOR

STOP

ASB BRACKET

MAGNET

ALUMINUM DOOR AND FRAME
WITH BL ADE STOP

D

O

M

R

O

F

2

3

-

B

S

A

I

W

O

H

S

S

B

S

A

.

N

K

C

O

L

A

N

G

A

M

2

3

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6

-

A

H

2

8

/

2

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V

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F

S

S

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O

H

STRIKE

SEX BOLT, STRIKE MOUNTING SCREW AND HOLE IN DOOR CAN ALL BE RAISED BY
1/4" WHEN OFFSET STRIKE IS USED WITH MODEL 62 TO SUIT NARROW RAIL

Another problem that can arise with aluminum frame glass doors is that in certain cases with the
model 62, the height of the aluminum rail at the top of the door is not sufficient to mount the
strike and sex bolt. Even when the sex bolt is installed in the lowest area of the top rail, the top
edge of the strike will protrude above the rail. To solve this problem, Securitron offers the offset
strike. The holes in the strike plate are offset 1/4" (6.4mm) from the center of the strike and this
allows successful mounting on a narrow top rail. An approximate 10% loss of holding force
results from the skewed position of the strike mounting screw but this is not significant on
aluminum frame glass doors which are not high security barriers. The offset strike is supplied at
no additional charge if it's called out with the order or may be sent as a replacement for the
standard strike. This problem does not occur with the more narrow model 32 or 34 so no offset
strike is offered with them.

2.5.2. THE UMB-BRACKET FOR ALUMINUM AND CONCRETE FILLED HEADERS

The UMB-34 bracket replaces the functions of the ASB bracket (see previous drawing) and the
CWB bracket (see Section 2.5.5) which permits mounting on wood or concrete filled steel
headers. The UMB has the unique benefit of being reversible which alters the projection of the
bracket with respect to the top of the magnet body and allows coping with different stop
thicknesses. The bracket is delivered with a selection of fasteners for different applications.
Wood screws are present for mounting on wood headers; cap screws are present for installation
into blind nuts and sheet metal screws are present for optional mounting on steel headers.

2.5.3 SOLID GLASS DOOR MOUNTING

The Magnalock is an excellent choice for securing 100% glass doors with no aluminum rail. The
magnet is suspended in normal fashion from the header and the difficulty in the installation is
mounting the strike plate on the glass door as glass cannot be drilled. This is accomplished by
using Securitron's model GDB (or GDBM with metric fasteners) Glass Door Bracket and model
AKG Adhesive Kit for Glass (see Figure 10). The GDB bracket will work with either the model
32, model 62, or model 82 Magnalock (but not with the model 34). The bracket is affixed to
the glass surface by a special adhesive and the strike screws into the bracket conventionally.
The adhesive provides a permanent bond stronger than the holding force of the Magnalock.

Rev. A.5, 8/03 Page- 9

FIG. 9: USE OF THE UMB BRACKET WITH THE MODEL 34 MAGNALOCK

NOTE HOW BRACKET CAN BE REVERSED TO COPE WITH DIFFERENT STOP THICKNESSES

BLADE

HEADER

STOP

HEADER

STOP

UMB BRACKET

DOOR

MAGNET

STRIKE

ALUMINUM DOOR AND FRAME
WITH BLADE STOP

UMB BRACKET

DOOR

MAGNET

STRIKE

ALUMINUM DOOR AND FRAME
WITH BLADE STOP

THE TWO LARGER HOLES ARE FOR THE
CABLE EXIT. THE TWO THREADED HOLES
ACCEPT THE MAGNET MOUNTING SCREWS.
THE REMAINING FIVE HOLES ACCEPT
DIFFEREN T FAST EN E R TYP ES TO MO UN T
TO DIFFERENT HEADERS.

Note that we have said "100% glass door". Some doors that appear to be glass are actually
laminated with plastic. If the Magnalock with glass door bracket is used on this type of
door, it is possible that failure will occur via delamination.

In some cases the header of a glass door is vertical glass. The magnet can be mounted on
such a header by using a 3" X 3" aluminum angle bracket (part number HEB-3G). The bracket
is glued to the vertical glass header with Securitron's adhesive kit for glass and the magnet is
screwed to the bracket.

FIG. 10: STRIKE INSTALLATION ON 100% GLASS DOOR

GL

2 X RUBBER

WASHERS

R

O

O

D

S

S

A

S

S

LA

G

D

B

R

O

O

T

E

K

C

A

R

5/16-18 x 1" (US) OR
8MM - 1.25MM X 25MM
(METRIC)

FLATHEAD SCREW

ADHESIVE

BOND

E

K

I

R

T

S

1/4" X 3/4"

ROLL PINS

NOTE: OMIT ROLL PIN WHITE PLASTIC BUSHINGS

WHITE PLASTIC
BUSHING

Rev. A.5, 8/03 Page- 10

2.5.4 DOUBLE DOOR MOUNTING
Several possibilities exist for this application. In some cases, one of the door leaves is pinned

so that only one leaf is used and this is secured by a single Magnalock. If both leaves are to be
active, two Magnalocks can be used. For the most attractive installation, they should be butted
together but if obstructions exist in the header that interfere with mounting, the magnets can be
separated somewhat. Another possibility is to use Securitron's split strike which is available for
the model 62 and model 82 (use of a split strike with the model 32 or 34 series would provide
inadequate security) In this method, a single Magnalock is mounted in the center of the header
and a half size strike is mounted on each leaf. This reduces the holding force to about 550 lbs.
(250 KG) for each leaf with the model 62 and about 850 lbs. (385 KG) for each leaf with the
model 82. The split strike (part number ASS-62 or ASS-82 with “M” suffix for metric) is
available either as part of a complete Magnalock or supplied separately as a replacement for the
standard strike. Read section 2.7 for information on Dress Covers which improve the
appearance of a double door installation. Certain electronic considerations also apply when
Magnalocks are used on double doors. See section 3.5.4.

2.5.5 DM-62 DOUBLE 62 LOCK

This is a special order lock which provides two Model 62’s in a single, stainless steel housing. It
is intended for mounting on any double door with no center mullion. The advantage of this
product is solely in its esthetic appearance. Mounting procedures are somewhat different from
the standard Magnalock. As Figure 11 shows, the magnet body housing mounts first. When
this has been accomplished locate the center points for mounting the two strike plates by
measuring in 4” (102 mm) from the housing end. Then, simply use the supplied strike templates
on the doors, making sure to drop the top edge of each strike about 1/10” below the point at
which the door stop meets the door. Note that on certain door types, spacing brackets may be
employed as with single Magnalocks.

FIG. 11: MOUNTING THE DM-62 MAGNET BODY HOUSING

MOUNT DUAL MAGNET BODY HOUSING FIRST

(1) LOCATE CENTER POIN T BETWE EN DOOR S
(2) MEASURE BACK ON STOP, 7/8" (22 mm) FROM DOOR
CLOSE POINT (FRONT EDGE OF STOP)
(3) DRAW PENCIL LINE ON DOOR STOP, PARALLEL
TO STOP BUT 7/8" (22 mm) SET BACK FRO M
FRONT EDGE
(4) ONE PE R S ON SH OULD HO L D MAGNET
BODY ON STOP SO THAT FRONT
HOUSING EDGE
LINES UP WITH PENCIL LINE

HOUSING WHILE IT IS BEING HELD BY FIRST PERSON

(7) BEFORE DRILLING MAGNET MOUNTING AND WIRE WAY

HOLES,

REFERRING TO THE DIAGRAM SUPPLIED WITH THE PRODUCT

(8) MOUNT BLIND NUTS AND MAGNET BODY USING PROCEDURES

CALLED OUT IN SECTION 2.3.2

CAREFULLY

(5) INSURE MAGNE T BO DY

HOUSING IS SQUARE TO PENCIL LINE

(6) SECOND PERSON SHOULD CENTER PUNCH

EIGHT MAGNET MOUNTING HOLES THROUGH THE

, CHECK THE SPACING BETWEEN THEM BY

2.5.6 STEEL HEADER FILLED WITH CONCRETE OR WOOD FRAME MOUNTING

Securitron offers a combined bracket in three versions to suit the three Magnalock families. The
part number of the “Concrete/Wood Bracket” is CWB-32, CWB-62 or CWB-82. Two finishes
are available (suffix CL or BK) and for metric locks, the brackets include the suffix “M”. Note
that the CWB bracket is not offered with the model 34. It’s functions are accomplished by the
UMB bracket for the model 34.

Rev. A.5, 8/03 Page- 11

FIG. 12: WOOD FRAME AND CONCRETE HEADER BRACKET

CWB-32

R

E

B

M

A

H

C

E

C

I

L

P

S

1/2"

WOOD SCREWS USED
FOR WOOD FRAME

MAGNET SCRE WS INTO
2 OUTSIDE TAPPED HOLES

SHEET METAL
SCREWS

FOR CONCRETE

HEADER

USED

USE ALL FURNISHED SCREWS FOR
PROPER MOUNTING SECURITY

CWB-62 AND CWB-82

R

E

B

M

A

H

C

E

C

I

L

P

S

1/2"

WOOD SCREWS USED
FOR WOOD FRAME

SHEET METAL SCREWS
USED FOR CONCRETE

MAGNET SCRE WS INTO
4 OUTSIDE TAPPED HOLES

HEADER

In concrete filled headers, the blind nuts function normally but a problem can occur in pulling
the hook up wires as it is difficult to run a wireway in concrete. The center of the bracket for the
model 62 and model 82 versions forms a splice chamber if it's difficult to pull the wires back into
the header. The model 32 version has a slot to bring the wire into the header because of the
narrowness of the lock. Alternately the wires may be pulled through the edge of the bracket by
drilling a hole if it's impractical to drill the concrete. A final technique for concrete headers is the
use of Securitron's

"G" version Magnalock (not available in the 32 or 34 series) which

incorporates a 1/2" female/-3/4" male universal threaded conduit fitting. The conduit fitting is
placed on the end of the magnet body, and the problem of pulling wires into concrete is
bypassed as the wires may be run in pipe in a surface mount configuration. The mounting holes
on "G" locks are

counter-bored from both sides to make the lock non-handed.

With a

wooden frame, long wood screws are used to mount the Magnalock. The screws must

penetrate as deeply as possible through the stop and frame into the header to yield adequate
mounting strength. The Magnalock mounts to the bracket via machine screws and the bracket
permits wood screws (furnished) to penetrate deeply into the header (see Figure 12)

2.6 MOUNTING THE MAGNALOCK ON EXTERIOR GATES

A popular application for the Magnalock is to secure motorized or manual exterior gates. The
Magnalock has several benefits in this application. Gates tend not to be precisely fitted so
electric bolts suffer from alignment failures. The Magnalock is designed to be self aligning and
tolerates considerable inconsistency in the gate closed position as regards upward/downward

Rev. A.5, 8/03 Page- 12

alignment, side alignment and twisting. The Magnalock is also fully sealed and waterproof so it
is generally unaffected by tough environments.

FIG. 13: MOUNTING TECHNIQUES FOR GATES

SINGLE SWING GATE

CONDUIT FITTING MAY EXIT TOP OR BOTTOM

GF MAGNET

Z BRACKET BOLTED TO SWING ARM

STRIKE

INTERFERENCE PIECE MUST

BE ADDED TO Z BRACKET

CONDUIT FITTING

DOUBLE SWING GATE

Z BRACKET BOLTED TO SWING ARM

DIRECTION OF OPE NING

SLIDING GATE

GATE

EDGES

MOTORIZED OPENING MUST BE
COORDINATED

EXTENDED ROLL PIN

ANGLE BRACKET

GF MAGNET

STRIKE

LOCK NUTS

ANGLE BRACKET

SPRING

EXTENDED ROLL PIN

Rev. A.5, 8/03 Page- 13

The drawings and descriptions, show conceptual installation concepts for different types of gate
security applications. Note that the model 62 and model 82 are most commonly used in gate
installations. They have conduit fittings available (“G” option) while this is not available on the
model 32 or 34 Most gate installations also call for higher levels of holding force as gates are
often large and poorly fitting. It’s also often the case that an intruder is able to physically apply
more force to defeat a gate lock than is the case with (especially) an outswinging door wherein
the intruder can only pull on it. The model 32 or 34 however may be used on certain gates with
success. A good example is a sliding gate where the Magnet can be mortised into a post
against which the gate slides. Securitron also offers the model 34R Magnalock which is
specifically designed for mortising (see catalog).

Because of the wide variety of gates in existence, each installation has to be considered special
and normally, bracketry must be made up on site. The concept is to mount the magnet on a
fixed post and the strike plate to the swinging or sliding member of the gate. Position both
components so that the strike plate slaps against the magnet face on closure. Usually, the "GF"
version of the Magnalock is used for gates. "G" calls out a conduit fitting mounted on the
magnet end and "F" calls out mounting holes through the face (see Figure 6). The magnet
typically screws onto a back plate fashioned on site and the back plate is welded onto the fixed
post.

A back plate or Securitron's Z bracket must also typically be provided for the strike plate.

The

strike plate cannot be directly welded to the gate as it will not be able to flex and self
align. It must be screwed onto a surface with the washer stack used to provide flexibility.

Note that if Securitron's Z bracket is used, it typically bolts to the gate rather than is welded as it
is aluminum. Read sections 2.3, 2.3.1, and 2.3.2 for additional general information on mounting.

In the case of very tall and large gates, a levering problem can exist. By this we mean that an
intruder may be able to flex the gate enough to take up the slack in the strike mounting screw
and then lever off the strike plate. If the installer or user determines that this may happen, a
single Magnalock will not provide adequate security and two must be used, typically at the top
and bottom of the gate.

Figure 13 shows preferred special techniques for Magnalock mounting on 3 types of gates. The
first drawing shows a

single swinging gate. The general technique follows the principles

discussed above but the use of Securitron's Z bracket which creates a neat installation is also
shown. Note that in some cases, the post which mounts the magnet is hollow. It is possible to
use the "F" version (without conduit fitting) and pull the wires through the post which may yield a
neater and more secure installation.

The second drawing shows a

double swinging gate which presents a unique problem. The

Magnalock is mounted in the same general way as on a single swinging gate but since both
arms move, an intruder pushing on the gate exerts a shearing force on the Magnalock.
Electromagnets are not at all strong in this orientation of attack. Therefore, as the drawing
shows, Securitron's Z bracket should be used with an interference piece which blocks the
shearing effect while the strength of the magnet blocks one arm moving while the other is
stationary. For this technique to work, the motorized operator must be

coordinated which

means that one arm must move first to clear the interference piece before the other arm starts
moving. Gate operators can normally accomplish this.

The final drawing on Figure 13 shows a special mounting technique for

sliding gates. We

recommend the use of the "GF" type magnet and two 3" angle brackets (available from
Securitron) for a neat installation. A special strike mounting technique is shown in the drawing
which improves reliability. The problem is that if the strike is mounted normally to the angle
bracket and the gate is a powerful one which slams shut, the magnet may be impacted to the
point where its mounting screws loosen or the bracket bends. The strike mounting technique
that is shown creates a "shock absorber" effect by the use of lock nuts at the rear of the strike
and the rear of the bracket together with a spring. A through hole (rather than tapped) is drilled
in the angle bracket mounting the strike and extra long roll pins are used. When the gate
closes, the strike moves in against the spring which is the shock absorbing action.

2.7 USE OF DRESS COVERS

Once the physical installation is complete, you may want to consider the use of a dress cover.
Dress covers are metal stampings which slip over the magnet body and are affixed with
permanent double stick tape (supplied). The dress cover accomplishes three functions: First, it
makes for a
that is seen is an attractive rectangular form on the door. Second, the cover provides an

more attractive installation by concealing the strike plate and mounting holes. All

extra

degree of tamper proofing and finally it allows easy alteration of the finish for architectural

Rev. A.5, 8/03 Page- 14

compatibility. Dress covers are available in clear aluminum, satin black aluminum, polished
stainless and polished brass finishes.

Double dress covers are also available for installations on double doors. In this case, the cover
fits over two locks so long as they are not separated by more than 2" (50mm). Double dress
covers have all the advantages mentioned above and in addition produce the appearance of a
single device which inside is really two. Consult the catalog for dress cover part numbers.

2.8 TAMPER PROOFING THE MAGNALOCK

In situations where vandalism is expected, the Magnalock should be protected from tampering.
The magnet itself is inherently tamper-proof being totally sealed. The magnet mounting screws
are vulnerable in that the magnet can be dismounted if the screws are loosened. The allen
holes on the screws can be filled with a potting compound, such as Devcon, or silicone.
Alternately, the entire hole in the magnet where the screw heads fit could be filled. Butyrate
caps are supplied to close the mounting holes. These provide some tamper proofing as they
can't be removed by hand, but can be pried out with a tool. Regarding the strike plate mounting
screw, it is covered by the strike when the magnet is energized. If tampering is anticipated
when the door is open, the screw socket head may be filled.

Another possibility is that

Securitron inventories special tamper proof screws for both

magnet and strike mounting. These screws are identical allen head types except that it requires
a special key to install and remove the screws. It is unlikely that a vandal would have access to
this type of key. Securitron optionally supplies the tamper proof screw sets with keys both in the
form of a manual allen wrench and in a bit key usable with a drill.

3. ELECTRICAL INSTALLATION

3.1 GENERAL ELECTRICAL CHARACTERISTICS

The Magnalock constitutes a low current electric load. Owing to internal circuitry, the
Magnalock does not show the normal characteristics of an electromagnetic or other inductive
load. Inductive kickback is suppressed, so arcing across switch contacts need not be a
concern. This suppression also protects nearby access control or computer equipment from
possible interference. The circuitry performs the additional functions of canceling residual
magnetism ("stickiness" on release) and accelerating field collapse so that the Magnalock
releases nearly instantly when power is removed. Electrically speaking, the load is nearly pure
resistive in nature although there is a modest capacitive component which depends on the
series. The following chart shows the current draw for each version and the degree of internal
capacitance.

32 @ 12V 32 @ 24V 34 @ 12V 34 @ 24V 62 @ 12V 62 @ 24V 82 @ 12V 82 @ 24V

CURRENT 300 mA 150 mA 350 mA 175 mA 250 mA 125 mA 350 mA 175 mA
CAPACITANCE 0 0 0 0 30 Mfd 15 Mfd 30 Mfd 15 Mfd

Capacitance can be an issue if very sensitive switch contacts are used to control the Magnalock
(such as a low current reed switch). A capacitive load includes some inrush current which can
stress these contacts. Note however that the problem is diminished when the Magnalock is
mounted some distance from the control switch as the interconnecting wiring adds a series
resistance to the circuit which sharply limits the inrush.

3.2 STANDARD LOCK

For operation, DC voltage must be provided to the lock. The red wire receives +12VDC or
+24VDC, and the black wire, 0V (negative).

If the lock is connected with reverse polarity, it

will not function at all. The voltage source may be regulated, filtered or pulsating DC

(transformer + bridge rectifier).

Half wave pulsating DC generated by a transformer and

single diode will not properly operate the Magnalock. An exact voltage level is not

necessary. Less than standard voltage will proportionately reduce holding force but will cause
no harm. Overvoltage up to 30% is acceptable.

The model 34, 62 and 82 series Magnalocks are

dual voltage units. This means that you can

apply either 12 or 24 volts to the same unit and it will operate equally well. Dual voltage
Magnalocks are

auto-switching which means that you still apply power to the red and black

Rev. A.5, 8/03 Page- 15

wires, while observing correct polarity. The lock, however, automatically detects whether it is
receiving 12 or 24 volts and draws the correct amount of current for that voltage (the current is
twice as high when the lock is receiving 12 volts than when it is receiving 24 volts). The model
32 series has separate models for 12 and 24 volt operation.

It is good practice to use power supplies with 1/3 extra capacity beyond the current
requirements of the load. This greatly reduces the possibility of heat induced power supply
failure and also allows for future expansion. Power supply cost is a small fraction of the job cost
and should not be skimped on.

Switches may be wired as necessary between the Magnalock and power source. Internal
circuitry eliminates inductive kickback, so neither electromechanical switches nor solid state
devices will be damaged by arcing when the Magnalock is shut off.

3.3 AVOIDING POOR RELEASE CHARACTERISTICS

One of the exceptional features of Magnalocks is near instantaneous release. This is
particularly valuable when the lock is being switched off and the door is being opened at the
same time as occurs when a switched exit device like Securitron’s Touch Sense Bar is being
used. Two separate wiring errors can however cause Magnalocks to release slowly (in one or
two seconds) and this is annoying.

The first problem is

connection of a reverse diode in parallel with the lock's power input.

This is often done to suppress inductive kickback from a coil such as a relay coil or solenoid.
Magnalocks already have internal inductive kickback protection, so addition of a reverse diode is
pointless. The diode does act to "recirculate" current flow through the magnet coil and thereby
considerably slows release. A diode should never be connected as shown in Figure 14.

The second problem is when any load is operated in parallel with the Magnalock. A good
example would be adding an incandescent lamp in parallel with the lock so that the lamp would
be illuminated when the lock is powered. The lamp acts like a resistor and allows current
recirculation which will greatly slow lock release time. When you want to add a resistive load in
parallel with the lock, you

must put a forward diode in series with the resistive load. This

will block recirculation and restore quick release. Correct practice is shown in Figure 14 below.
A special case exists when you use an

LED connected in parallel with the Magnalock (to

show that the Magnalock is on for example). This does not slow release as the LED does not
allow recirculation but the limited recirculation energy will eventually burn out the LED. LED’s
are susceptible to even a tiny amount of reverse voltage. Therefore add the forward diode as
you would with an incandescent lamp (see Figure 14) to extend the life of the LED.

FIG. 14: WIRING CONSIDERATIONS TO AVOID SLOW RELEASE

RED

RED

MAGNALOCK

BLACK

NEVER CONNECT PARALLEL
REVERSE DIODE AS SHOWN

BLACK

USE A FORWARD DIODE WITH ANY PARALLEL
RESISTIVE LOAD SUCH AS A LAMP

MAGNALOCK

3.4 WIRE GAUGE SIZING

If the power supply is distant from the lock, voltage will be lost (dropped) in the connecting wires
so that the Magnalock will not receive full voltage. The following chart shows the
gauge that will hold voltage drop to an acceptable 5% for different

lock to power supply

minimum wire

distances. Proper use of the chart assumes a dedicated pair of wires to power each

Magnalock (no common negative). Note that a Magnalock operating on 24 volts is a much
better choice for long wire runs as it has 4 times the resistance of a 12 volt installation. Also
note that the correct calculation of wire sizing is a very important issue as the installer is
responsible to insure that adequate voltage is supplied to any load. In multiple device

Rev. A.5, 8/03 Page- 16

installations, the calculation can become quite complex so refer to Appendix B for a more

complete discussion.

Distance Gauge 12V Gauge 24V Distance Gauge 12V Gauge 24V

80 FT 20 GA 24 GA 800 FT 10 GA 16 GA
200 FT 17 GA 22 GA 1500 FT. 8 GA 14 GA
400 FT 14 GA 20 GA 3000 FT N/A 12 GA

3.5 SENSTAT MAGNALOCKS: “SC”

Securitron's optional patented Senstat feature provides true lock status sensing. In many
electrically controlled door security systems, status sensing is provided by a magnetic switch on
the door itself. This indicates the door is closed but not necessarily secured. Securitron's
Senstat monitors the lock rather than the door and therefore provides higher security (but note
that it can’t be used as an auto-relock input to an access control system).

An “SC” Magnalock provides a dry SPDT output which changes state when the lock is reporting
secure

(1 Amp @ 30 VDC maximum). This is accomplished by conducting the input power of

the lock through the strike and employing it to energize an internal SPDT relay. The white wire
is the Senstat relay common. Green is closed to white when the lock is secure and Orange is
closed to white when the lock is not secure.

FIG. 15: “SC” SENSTAT WIRING

BLK

"SC" LOCK

POWER
SUPPLY

+

WHITE AND GREEN WIRES PROVIDE ISOLATED CLOSURE WHEN LOCK IS SECURE.
ORANGE AND WHITE ARE CLOSED WHEN LOCK IS NOT SECURE (AS SHOWN ABOVE).

RED

ORANGE
GREEN

WHITE

3.6 DOUBLE DOOR PROCEDURE FOR STATUS REPORTING

Often two Magnalocks are mounted on a double door and are turned on and off together (no
separate control). As to status reporting, it is of course possible to receive a separate Senstat
status signal from each door or you can

combine the outputs so that if both locks are secure,

the double door is secure and if either lock is not secure, the double door is not secure.
Simply tie the white and green wires together from the two locks. A circuit will be closed

between the other white and green wires only when both locks are reporting secure. If either is
not secure, the circuit between other white and green wires will be open. The orange wires are
not used. See Figure 16.

FIG. 16: DOUBLE DOOR WIRING WITH "SC" LOCKS

WHITE

GREEN

"SC" LOCKS ARE INTERWIRED AS SHOWN TO PROVIDE STATUS MONITORING. AN ISOLATED CLOSURE

WILL EXIST BETWEEN THE GREE N A ND WHI TE WIRES ONLY IF BOTH LOCKS ARE SECURE.

"SC" LOCK

"SC" LOCK

GREEN

WHITE

Rev. A.5, 8/03 Page- 17

3.7 DOUBLE DOOR CONTROL SWITCHING

It’s common to control two locks from a single access and/or exit switch on double doors or on
an installation where two locks are mounted on a single door. In nearly all cases, this works
with no problem but occasionally the release can appear to be “sticky” for similar reasons to
those discussed in Section 3.3 This happens when one of the locks is poorly coupled to its
strike plate. This could occur because of an installation problem (the strike plate is not being
allowed to swivel) or because of some obstruction between the plate and magnet surface.
When an electromagnet is not well coupled to its strike plate, its magnetic field collapses so
rapidly that it provides some energy to recirculate in the second magnetic lock, slowing the
release of that lock.

FIG. 17: DOUBLE POLE SWITCHING OF TWO LOCK INSTALLATION

TWO POLE

POWER
SUPPLY

+

SWITCH

RED

MAGNALOCK #1

RED

MAGNALOCK #2

BLK

BLK

So if you notice slow release on a double lock installation, this is telling you that one of the locks
is not holding properly and that the problem should be corrected. Alternately, any chance of
slow release can be eliminated by controlling the two locks with a double pole switch or relay.
This blocks the recirculation path and is shown in Figure 17.

3.8 EMERGENCY RELEASE

Magnalocks are often wired into a system such that they can be released in an emergency -­either manually from one switch or automatically, often from the fire alarm system. It is the
user's responsibility to accomplish this hookup correctly according to these instructions and
good electrical practices. In general, we recommend that a switch or relay be used to perform a
series break of all DC power which is the simple and sure way to make sure the doors do
release. Securitron power supplies have terminals for interconnection of such emergency
release switches. Finally please note that

it is the responsibility of the end user and

dealer/installer to insure that Magnalock installations comply with any applicable fire or
building codes.

Rev. A.5, 8/03 Page- 18

MAGNACARE® LIMITED LIFETIME WARRANTY

SECURITRON MAGNALOCK CORPORATION warrants that it will replace at customer’s request, at any time for
any reason, products manufactured and branded by SECURITRON.

SECURITRON will use its best efforts to ship a replacement product by next day air freight at no cost to the
customer within 24 hours of SECURITRON’s receipt of the product from customer. If the customer has an account
with SECURITRON or a valid credit card, the customer may order an advance replacement product, whereby
SECURITRON will charge the customer’s account for the price of the product plus next day air freight, and will
credit back to the customer the full amount of the charge, including outbound freight, upon SECURITRON’s receipt
of the original product from the customer.

SECURITRON’s sole and exclusive liability, and customer’s sole remedy, is limited to the replacement of the
SECURITRON product when delivered to SECURITRON’s facility (freight and insurance charges prepaid by
customer). The replacement, at SECURITRON’s sole option, may be the identical item or a newer unit which
serves as a functional replacement. In the event that the product type has become obsolete in SECURITRON’s
product line, this MAGNACARE warranty will not apply. This MAGNACARE warranty also does not apply to
custom, built to order, or non-catalog items, items made by others (such as batteries), returns for payment,
distributor stock reductions, returns seeking replacement with anything other than the identical product, or products
installed outside of the United States or Canada. This MAGNACARE warranty also does not apply to removal or
installation costs.

SECURITRON will not be liable to the purchaser, the customer or anyone else for incidental or consequential
damages arising from any defect in, or malfunction of, its products. SECURITRON does not assume any
responsibility for damage or injury to person or property due to improper care, storage, handling, abuse, misuse, or
an act of God.

EXCEPT AS STATED ABOVE, SECURITRON MAKES NO WARRANTIES, EITHER EXPRESS OR IMPLIED, AS
TO ANY MATTER WHATSOEVER, INCLUDING WITHOUT LIMITATION THE CONDITION OF ITS PRODUCTS,
THEIR MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

PATENTS

Securitron’s Magnalock is covered under U.S. patents #4,516,114 and 4,682,801.

Rev. A.5, 8/03 Page- i

APPENDIX A

TROUBLESHOOTING

PROBLEM-- No magnetic attraction between magnet and strike plate.

First be sure the lock is being correctly powered with DC voltage. This includes connecting the power wires with
correct polarity. Positive must go to red and negative to black. If the Magnalock is wired in reverse polarity, it will
not be damaged, but it will not operate. If the unit continues to appear dead, it must be electrically checked with an
Ammeter. It must be powered with the correct input voltage and checked to see if it draws the specified current. If
the unit meters correctly, it is putting out the correct magnetic field and the problem must lie in the mounting of the
strike (see next paragraph). Section 3.1 includes a chart showing current draw for all Magnalock versions.

PROBLEM-- Reduced holding force.

This problem usually expresses itself in terms of being able to kick the door open or to open it with a shoulder.
Check the strike and magnet face to see if some small obstruction is interfering with a flat fit. Even a small air gap
can greatly reduce the holding force. Another possibility is if the strike plate has a dent on it from being dropped for
example. Remove the strike from the door and try to rock it on the magnet face to insure it is flat. If the strike and
magnet are flat and clean, the cause is nearly always improper mounting of the strike in that the strike is mounted
too rigidly. The strike must be allowed to float around the rubber washer stack which must be on the strike center
mounting screw. The magnet then pulls it into flat alignment. To correct the problem, try loosening the strike
mounting screw to see if the lock then holds properly. Another possibility is if you are operating the lock on AC
instead of DC or on half wave rectified DC (transformer + single diode). Half wave rectified DC is unacceptable;
you must, at a minimum employ full wave rectified DC (transformer + bridge).

PROBLEM-- The Senstat output does not report secure.

Because of the simplicity of Securitron's patented Senstat design, this is almost always a case of the lock status
sensor doing its job. It is not reporting secure because a small obstruction or too stiffly mounted strike is causing
the Magnalock to hold at reduced force. The problem is corrected by cleaning the surfaces of the magnet and
strike or establishing proper play in the strike mounting. If this doesn't work, you can verify function of the Senstat
feature as follows. Note that there are 2 thin vertical lines on the magnet face that can be said to separate the core
into 3 sections from left to right. The Senstat output is created by the strike establishing electrical contact between
the leftmost and rightmost core segments. With the lock powered, use a pair of scissors and press the points
respectively into the leftmost and rightmost core segments. The Senstat output should then report secure. This
shows that the problem lies in the strike not making correct flat contact with the magnet face. If the scissors
technique doesn't cause the lock to report secure, check to see if there is a broken Senstat wire. If this is not the
case, the lock must be returned to the factory for replacement.

PROBLEM-- The lock does not release.

When power is removed from it, the Magnalock must release. If internal circuitry, which eliminates residual
magnetism, were to fail completely, the lock would only exhibit "stickiness" at a rough level of 5 pounds. Therefore
the complaint of "lock will not release" is either mechanical bonding via vandalism or a failure to completely release
power. By mechanical bonding, we simply mean that glue has been applied between the strike and magnet as a
prank. Failure to completely release power is generally a wiring integrity problem. What happens is that an
upstream switch removes power from the wires going to the Magnalock, but through an installation error, the wires
have their insulation abraded between the switch and lock so that partial or full power can leak in from another
Magnalock or other DC device with similarly abraded wiring. This is most likely to occur at the point where the wire
cable leaves the lock case and enters the door frame. Another area is via an improper splice on wiring in conduit.
Either a metal door frame or the metal conduit is capable of leaking power between multiple devices with abraded
wires, thereby bypassing switches. A good way to check this electrically (as opposed to visually removing and
inspecting the wires) is to use a meter and check for leakage between the power supply positive or negative and
the door frame and conduit. Magnalocks should be powered by isolated DC voltage without any earth ground
reference to positive or negative. Note that two types of wiring errors can cause slow release. Review Section 3.3
to see if you are making either of these errors.

PROBLEM-- The lock rusts

Both the Magnalock core and strike plate are plated and sealed following a military specification. Because of this
plating and the sealed nature of the magnet, the Magnalock is weatherproof and may be used outdoors. If rusting
appears, the most common cause is that improper cleaning (with steel wool for instance) has occurred and this has
stripped off the relatively soft plating. Once the plating has been removed, it cannot be restored in the field, so the
lock will have to be periodically cleaned and coated with oil or other rust inhibitor. A rusty Magnalock will still
function but at reduced holding force. If the product is installed in a heavily corrosive atmosphere, such as near the
ocean, it will eventually rust even with non abrasive cleaning. The only answer then becomes continued periodic
removal of the rust.

Rev. A.5, 8/03 Page- ii

PROBLEM-- Apparent electronic noise interference with the access control system.

Electric locks, being inductive devices, return voltage spikes on their power wires and also emit microwave
radiation when switched. This can interfere with access control electronics causing malfunctions. Access control
contractors often employ installation techniques designed to isolate the access control electronics from the electric
lock. These include separate circuits for the lock, shielded wiring and other techniques. These techniques will vary
with the sensitivity of the access control system electronics and should, of course, be followed. Note that
Magnalocks include internal electronics which suppress both inductive kickback and radiation. They have been
extensively tested and accepted by numerous access control manufacturers and have been used in thousands of
installations without incident. An apparent noise problem is therefore usually not caused by the Magnalock. The
access control equipment may be itself faulty or have been installed improperly. One problem can arise with the
Magnalock. If the Senstat version is being used, the strike plate (which passes current) must be isolated from a
metal door and frame. Securitron supplies insulating hardware to accomplish this but the hardware might not have
been used or the strike may be scraping against the header for instance. Check for full isolation between the strike
and the door frame (when the door is secure) with an Ohmmeter. The presence of lock voltage potential in the
door frame can interfere with the ground reference of access control system data communication and therefore
cause a problem.

IF YOUR PROBLEM PERSISTS

CALL SECURITRON TOLL FREE

1-800-MAG-LOCK

APPENDIX B

CALCULATING WIRE GAUGE SIZING

The general practice of wire sizing in a DC circuit is to avoid causing voltage drops in connecting wires which
reduce the voltage available to operate the device. As Magnalocks are very low power devices, they can be
operated long distances from their power source. For any job that includes long wire runs, the installer must
be able to calculate the correct gauge of wire to avoid excessive voltage drops.

This is done by adding the resistance of the Magnalock to the resistance in the power wires and then dividing the
wire resistance by the total resistance. This yields the fraction of voltage drop in the wires. For example, a single
model 62 Magnalock has a resistance of 192 ohms when being operated on 24 volts. If the wires completing the
circuit between the Magnalock and its power source have a resistance of 10 ohms, the total resistance is 202
Ohms. Dividing 10 Ohms (the wire resistance) by 202 (the total resistance) yields roughly 1/20 or 5%. If the input
voltage is 24 volts, 5% of this voltage will be dropped in the wires (1.2 volts) leaving 22.8 volts to operate the
Magnalock. This will cause a small reduction in holding force but in general, will be acceptable.

To calculate the wire resistance, you need to know the distance from the power supply to the Magnalock and the
gauge (thickness) of the wire. The following chart shows wire resistance per 1000 ft (305 meters):

Wire Gauge Resistance/1,000 ft Wire Gauge Resistance/1,000 ft

8 Gauge .6 Ohms 16 Gauge 4.1 Ohms
10 Gauge 1.0 Ohms 18 Gauge 6.4 Ohms
12 Gauge 1.6 Ohms 20 Gauge 10.1 Ohms
14 Gauge 2.5 Ohms 22 Gauge 16.0 Ohms

Model 32 resistances are 160 Ohms for the 24 VDC version and 40 Ohms for the 12 VDC version.
Model 34 resistances are 136 Ohms for 24 VDC operation and 34 Ohms for 12 VDC operation.
Model 62 resistances are 192 Ohms for 24 VDC operation and 48 Ohms for 12 VDC operation.
Model 82 resistances are 136 Ohms for 24 VDC operation and 34 Ohms for 12 VDC operation.

Let's look at some other sample calculations. Suppose a single 62 Magnalock operating on 24 volts is 1200 ft from
its power supply and we're using 20 gauge wire. First, the total length of the power wires is 2400 ft. Remember

that you combine the wire lengths from the power supply to the lock and back to the pow er supply to get
the total circuit wire length. The wire resistance than becomes 2.4 X 10.1 Ohms which is 24.2 Ohms. Adding

this to the Model 62 Magnalock resistance of 192 Ohms (at 24 volts) yields a total resistance of 216.2 Ohms. 24.2
divided by 216.2 yields the percent drop in the wires which is over 11% which we would consider excessive. The
problem can be dealt with in 2 ways. You can utilize 16 gauge wire which would reduce the drop to a more
acceptable 5% range or you can provide extra voltage at the power supply. For instance, Securitron 24 V power
supplies are adjustable from 24 to 28 volts. You can therefore easily set the power supply to output 11%
overvoltage which will then deliver 24 volts at the lock. The Magnalock will accept up to 30% overvoltage without ill
effects.

Rev. A.5, 8/03 Page- iii

Note that a Magnalock operating on 12 volts has 1/4th the resistance of a unit operating on 24 VDC. This means
that wire voltage drops are 4 times more significant in a 12 volt system than in a 24 volt system. In any job that
has wire runs long enough to be of concern, always use 24 volts. Note also that it's common to mount 2
Magnalocks on a double door and operate them as one lock (only 2 power wires). In this case, the resistance of
the pair of locks is half the resistance of a single lock.

In multiple lock jobs with a single power supply, the calculation of wiring voltage drops is more difficult. So long as
you run a separate pair of power wires to each lock, the calculation is as simple as has been described above, but
if a common power wire is used in a loop structure, the locks powered by the single loop will have an increasingly
low combined resistance so that the loop wire resistance will become more significant to the point where the locks
don't receive enough voltage. To find the combined resistance of multiple locks powered by a common wire, divide
the resistance of one lock by the number of locks. For example, eight 62 Magnalocks operating on 24 volts would
have a combined resistance of 192 divided by 8 which is only 24 Ohms. Another method is to calculate the current
in Amps in the wire and divide that into the circuit voltage. Since each 62- Magnalock operating on 24 volts draws
1/8th of an Amp, eight would draw 1 Amp. Dividing this into the same 24 volt input voltage yields a 24 Ohm
combined resistance.

In general, you have to be cautious about using common wires for loads in long distance situations unless you're
very confident about your ability to calculate the correct configuration. Bear in mind, however, that anytime you're
uncertain about the voltage drop in wiring, you can meter the voltage at the lock while it's connected and you will
be able to see if it's receiving adequate voltage. If the lock is not connected when you make this measurement, the
result will be false as the circuit will not see any lock resistance to compare to the wire resistance. You will read
the full input voltage.

APPENDIX C

CONSIDERATIONS FOR MAXIMUM PHYSICAL SECURITY

Magnalocks carries rated holding forces of 600 lbs. (275 Kg.), 1200 lbs. (550 Kg.) and 1800 lbs. (815 Kg.) for
respectively the model 32/34, 62 and 82. The figures are derived by using a calibrated hydraulic press to separate
the magnet and strike. The installer and user, however, are logically most interested in how Magnalocks perform
on a door rather than on a laboratory instrument and there are several installation and application variables that
affect the security level attained while using the Magnalock.

First, to achieve the rated holding force, the magnet face and strike plate must be clean. Even a small amount of
contamination will materially reduce the holding force. If cleaning is necessary, avoid the use of a heavy
abrasive such as steel wool which can remove the plating on the magnet face and strike. A sponge or
plastic pad such as Scotchbrite must be used.

Another requirement for maximum holding is that the strike plate must be centered on the magnet face and must
cover the magnetic core (3 bars). As is said in other parts of these instructions, the strike plate must be allowed to
swivel around the washer stack placed on the center strike mounting screw (not on the roll pins). Assuming the
magnet and strike are clean and are mounted in good alignment, the Magnalock will deliver its rated degree of
holding force on the door and the question becomes how much security does that provide on different door types?
In furnishing the answer we have to consider both the door construction and the likely type of attack.

In the case of wooden doors (other than solid hardwoods), aluminum frame glass doors, and hollow aluminum
doors, the model 32 or 34 should be employed in a “traffic control” mode. This means that a determined assault on
the door can “pop” these models open. The model 62 or model 82 Magnalock is generally stronger than the door
itself. Users have logged periodic cases of an assault destroying the door but leaving the Magnalock intact and still
holding a piece of the door. This raises the question of whether it ever makes sense to install the model 82
Magnalock on non-steel doors since the model 62 is stronger than the door. Justification for using the model 82
lies in margin for error. The greater strength of the model 82 can compensate for a dirt build-up or improper
installation and this may be warranted for the protection of critical areas. Steel clad fire doors or solid steel door
such as are sometimes found in prisons, are generally stronger than the model 62 Magnalock so the use of the
model 82 Magnalock can provide extra security for critical applications on steel doors.

In looking at methods of attack, the first point that must be made is that it is far more effective to force the
attacker to pull the door open rather than to allow him to push it. This is controlled by whether the door
swings away from or in to the protected area with the former being preferred. If the attacker can be forced to pull
the door, it is much more difficult for him to generate the requisite amount of force to defeat any of the Magnalock
versions.

A crowbar may be used to try to pry open the door. At first, this seems to be a major worry as a long crow bar can
develop high force through leverage. In fact, what generally occurs is that the door experiences material failure.
The crowbar tears (in the case of wood) or bends (in the case of metal) the door material without defeating the
lock. Another factor that underlines the superiority of the Magnalock as regards physical security is that many

Rev. A.5, 8/03 Page- iv

attackers will not be familiar with it. Expecting a conventional lock which secures between the door and frame, the
attacker will employ the crowbar in an attempt to spread the door edge from the frame to clear the securing latch
rather than to pry the door open against the strength of the Magnalock. Electric strikes, however well made, can be
comparatively easily defeated with a crowbar by the tactic of spreading the door and this is why they should be
considered low security devices. The general fact that the Magnalock mounts on the other side of the door from
the attacker is an important contributor to its strong resistance to assault.

If the door must open in to the protected area, the attacker will have an opportunity to charge the door, kick it, or hit
it with an object. This is a less secure configuration, but Magnalocks never the less resist violent attacks of this
type. It is naturally important to use the strongest model Magnalock for the best security in this situation but the
ability of an attacker to defeat a Magnalock secured door that swings into the protected area is highly dependent on
the door type and mounting location of the lock on the door. The key factor is that the door should be able to

give when it receives a blow, thereby absorbing the force of the blow, rather than transmitting that force to
the lock. In more technical terms, the momentum of an object striking the door will generate momentary force at

the lock as a direct function of the deceleration of the arriving object. If the object decelerates abruptly, because
the door is very stiff, it will generate a large force. Slow deceleration, as the door gives with the arriving object,
generates a relatively small force at the lock.

Once the above paragraph is understood, we can conclude that the best place to mount the Magnalock on an
inswinging door is at the top of the door/header. In fact this is best place to mount any lock on an inswinging door.
Most people prefer to mount at the middle of the door as it gives a feeling of security when one shakes the door
from the doorknob. This however is an illusion. If a strong kick is struck right at the lock, the power of the kick is
transmitted nearly directly to the lock and there is a good chance of defeating the lock or its mounting. If the lock is
at the top of the door, a kick at the door center, causes the door to flex which absorbs most of the force of the blow.

The concept of preferring a door that gives, also affects the issue of physical security on different door types.
Oddly enough the characteristics that make an inswinging door strong, can make it more difficult to lock if it is stiff.
Steel doors and most particularly solid steel doors such as may be found in prisons, transmit blows much more
effectively to the lock and as such may be defeated by repeated leg blows or by charging the door. If the end user
has such doors and has as well a security environment where determined attacks can be foreseen on the doors, it
is his responsibility to insure that the Magnalock's strength is adequate for the application. Selection of the model
82 is strongly recommended with another technique being the use of multiple locks.

For critical applications on stiff doors which swing in to the protected area, Securitron offers a component that
counteracts the stiffness of the door. This is the energy absorbing sex bolt (model EASB). Larger in diameter
than the standard sex bolt, the EASB incorporates a powerful internal spring which flexes to absorb the force of a
blow and thereby substantially increases the security of the installation.

As a final matter, be aware that the fasteners and mounting technique are just as important to successful physical
security as the strength of the lock. The fasteners must also naturally be employed on a frame area of sufficient
solidity so that it will not come loose in an attack. The Magnalock has been carefully designed to install with
supplied fasteners that substantially exceed the lock strength. If the installer replaces the factory supplied
fasteners for any reason, the success of the installation is in question. Turning to the details of Securitron's
fasteners, first note the sex bolt. This is a key component as the head of the sex bolt is the only part of the entire
lock assembly that is accessible to an attacker. Securitron's sex bolt is both large (1 1/4" dia. head) and is
manufactured from steel. Small commercially available sex bolts exist fabricated from both aluminum and brass.
The use of such a component destroys the security of the installation as the bolt head can be sheared with a chisel
by an intruder.

It is also vital to mount the magnet with the supplied machine screws into the steel blind nuts. An alternate
technique is to use sheet metal screws which some installers feel is easier. This is extremely ill advised as the
magnet receives a torquing force each time the door is closed which will work the sheet metal screws free in time.
We have determined that sheet metal screws can be considered acceptable, although not preferred, if the header
is made of steel. Indeed this is mandated when Securitron's concrete header bracket is used. On an aluminum

header, however, sheet metal screw mounting is dangerous as the steel screw threads will gradually tear
through the relatively soft aluminum.

To fully complete an installation that maximizes the effectiveness of the fasteners, Threadlock (supplied) should be
used to defend the threads against loosening over time and please refer to section 2.8 on tamper proofing for
applications where vandalism can be expected.