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Bussmann®Power Module
™
Switch PS
All-In-One Module
Form No. PS
Page 1 of 5
BIF Doc# 1145
Bussmann® Power Module™ Switch
Standard Features:
• 30-400 amp 600 Vac 3p Fused Power Switch
• 200,000 amp RMS Short-Circuit Current Rating
• Shunt trip 120V
• Control power terminal block
• Ground lug per NEC
• Class J fuse mounting only
1
Optional Features:
• Control power transformer with fuses and blocks
• Fire safety interface relay
• Key to test switch
• Pilot light – “ON”
• Isolated neutral lug
2
• Mechanically interlocked auxiliary contact for hydraulic
elevators with battery backup (5 amp 120 Vac rated)
• Fire Alarm Voltage Monitoring Relay (To monitor Shunt Trip
Voltage)
• NEMA 3R, 4, and 12 enclosures available
3
• Phase failure and undervoltage relay available, consult
factory
• For added protection, use the Bussmann SAMI fuse
covers to improve maintenance personnel protection
4
(OSHA 1910.333, paragraph C)
Agency Information:
U.L. 98 Enclosed and Dead Front Switch
Guide 96NK3917, File E182262
NEMA 1, U.L. 50, listed enclosure
cU.L. per Canadian Standards C22.2, No. 0-M91-CAN/CSA
C22.2, No. 4-M89 Enclosed Switch
Power Module™ Switch
Rating (Amps) Power Module Switch Catalog No.
30 PS3
60 PS6
100 PS1
200 PS2
400 PS4
Optional Accessories
1
Catalog
Rating Number
Option 1
Control Power Transformer 208V T20
(CPT) Std. 100VA with PRI & 240V T24
SEC Fuse (120V Secondary) 480V T48
600V T60
Option 2
Fire Safety Interface 24 Vdc Coil R2
Relay (3PDT, 10 amp, 120V) 120 Vac Coil R1
Option 3
Key to Test Switch 120V K
Option 4
Pilot Light – “ON” Red R
Green G
White W
Option 5
Isolated Neutral Lug 30-60A N6
(Full Capacity)
2
100A N1
200A N2
400A N4
Option 6
Mechanically interlocked auxiliary contact 1 NO & 1 NC A
for hydraulic elevators with automatic
recall (5 amp 120 Vac rated)
Option 7
Fire Alarm Voltage Monitoring Relay Single-Pole F1
(To monitor Shunt Trip Voltage) Three-Pole F3
Option 8
Optional Enclosure NEMA 3R U
NEMA 4 Y
NEMA 12 Z
Catalog No. Construction: Catalog number of PS Switch
Options as required in option order as listed above
(i.e. option 1, 2, 3, etc.)
Example: • 100A S.T. Switch 480V-3P – PS1
• 480–120V CPT – T48
• 120 Vac Coil Fire Safety Interface Relay – R1
• Pilot Light - “ON” (Green) – G
• Mech. Interlock (1 NO & 1 NC) – A
Catalog Number PS1T48R1GA
1
Class J fuses not included.
2
Oversized 200% rated neutral option available where required by excessive
non-linear loads.
3
Through 200A.
4
Through 100A.
5
Options 1,2,& 6 are standard for elevator circuits.
Bussmann
®
How to configure Part Numbers:
Step 1: Select Switch Amperage
1
Step 2: Select Options Needed
5
Bussmann®Power Module
™
Switch PS
All-In-One Module
Form No. PS
Page 2 of 5
BIF Doc# 1145
Standard Shunt Trip Ratings
Amp Max Max
1
Momentary
Rating Voltage Inrush Ontime Inrush
30-100
200 120V, 60HZ 4 amps 1.5 cycles 140VA
400
Bussmann®Power Module™ Switch – Dimensions and Lug Data
Catalog NEMA 1 NEMA Depth
Number Amp Dimensions
1
Depth 3R, 12
2
3R,12 Lug Size
3
PS3 30 20∑H ≈ 16∑W 8fiΩ•∑ 20∑H ≈ 20∑W 8∑ #14 - #8 Al or Cu
PS6 60 20∑H ≈ 16∑W 8fiΩ•∑ 20∑H ≈ 20∑W 8∑ #14 - #2 Al or Cu
PS1 100 20∑H ≈ 16∑W 8fiΩ•∑ 20∑H ≈ 20∑W 8∑ #8 - 1/0 Al or Cu
PS2 200 30∑H ≈ 20∑W 8fiΩ•∑ 30∑H ≈ 24∑W 8∑ #6 - 250 kcmil Al or Cu
PS4 400 55∑H ≈ 40∑W 13∑ — — (2) 3/0 - 500 kcmil Al or Cu
1
Standard over size enclosure to mount control power transformer fire safety interface relay and control terminal blocks.
2
Contact factory for dimensions for NEMA 4 enclosure.
3
Optional neutral lug size same as line and load.
Maximum Horsepower Rating of Switch – Sizing Based on Motor Type
Amp Rating of Switch
30A 60A 100A 200A 400A
PS3 PS6 PS1 PS2 PS4
Voltage A B C A B C A B C A B C A B C
208AC-3P 5 5 3 10 10 10 20 15 15 40 40 30 75 75 60
240AC-3P 5 5 5 10 10 10 20 20 15 50 40 30 125 75 75
480AC-3P 10 10 10 30 25 20 50 40 30 100 75 75 250 150 150
600AC-3P 15 15 10 30 30 25 60 50 40 125 100 100 250 200 200
Column Sizing Guidelines:
A Maximum horsepower rating of switch with Class J fuses, light-duty inrush
B Maximum horsepower rating of switch with Class J fuses, medium-duty inrush
C Maximum horsepower rating of switch with Class J fuses, heavy-duty or typical elevator cross line start
The above table can be used for estimating switch size for motor loads based upon the motor horsepower. Size the switch so that
the Class J, time-delay fuses are used at a minimum of 150% of motor full load amps or next size up (for light starting duty
applications, Column A). For general applications, excluding wound rotor and DC motors, NEC
®
430-52 allows sizing at 175%
of motor full load amps or the next standard size per NEC 240-6 (Column B). If sizing at 175% will not allow the motor to start,
NEC 430-52 will allow the fuses to be sized up to 225% of motor full load amps or the next size down (Column C).
Note: In sizing the fuses, the motor FLA, is per Table 430-150, not per nameplate information.
Inrush currents of motors may vary, consult motor manufacturer data for correct sizing.
On elevator applications, motor load plus auxiliary loads need to be considered. Follow elevator manufacturer’s
recommendation for correct fuse sizing. For estimation purposes only, Column C can be used as a conservative
approximation.
Bussmann
®
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1
Will handle up to 447VA inrush.
Bussmann®Power Module
™
Switch PS
All-In-One Module
Form No. PS
Page 3 of 5
BIF Doc# 1145
Typical Control with Wiring Options for Fire Safety Interface (Option R1)
Legend:
N.O.F.A. – Normally Open Fire Alarm contacts supplied from the fire alarm system to initiate the shunt trip.
Shunt Trip – Solenoid for remote trip of switch, which is activated by the closing of the fire alarm contacts or key test switch.
Option R1 – Fire Safety Interface Relay that is operated at 120VAC from secondary of transformer. No additional power needed.
CR – Control Relay used to isolate the N.O.F.A. contacts from the duty of the shunt trip.
FR – Fire Alarm Voltage Monitoring Relay used to monitor presence of voltage in switch from a remote location (i.e. Fire Alarm Control Panel).
PL – Pilot Light to visually indicate presence of voltage on outside of switch enclosure.
CPT – Control Power Transformer used to step down line voltage to 120VAC to power shunt trip coil.
SW Aux. – Normally closed contact when switch is closed. Opens as power switch opens.
Key Test – Key-to-Test switch used to operate shunt trip from the outside of switch enclosure. Can be used for trouble-shooting and inspection.
Mechanically Interlocked Auxiliary Contact – Contact used to disconnect secondary source of power.
■ – Terminal Block Connection Point.
● – Pre-wired Connection Points.
Bussmann
®
8-29-01
XXXXXX
Bussmann
®
Bussmann®Power Module
™
Switch PS
All-In-One Module
Legend:
N.O.F.A. – Normally Open Fire Alarm contacts supplied from the fire alarm system to initiate the shunt trip.
Shunt Trip – Solenoid for remote trip of switch, which is activated by the closing of the fire alarm contacts or key test switch.
Option R2 – Fire Safety Interface Relay that is operated at 24VDC from fire alarm system. May require an additional power source to be needed.
CR – Control Relay used to isolate the N.O.F.A. contacts from the duty of the shunt trip.
FR – Fire Alarm Voltage Monitoring Relay used to monitor presence of voltage in switch from a remote location (i.e. Fire Alarm Control Panel).
PL – Pilot Light to visually indicate presence of voltage on outside of switch enclosure.
CPT – Control Power Transformer used to step down line voltage to 120VAC to power shunt trip coil.
SW Aux. – Normally closed contact when switch is closed. Opens as power switch opens.
Key Test – Key-to-Test switch used to operate shunt trip from the outside of switch enclosure. Can be used for trouble-shooting and inspection.
Mechanically Interlocked Auxiliary Contact – Contact used to disconnect secondary source of power.
■ – Terminal Block Connection Point.
● – Pre-wired Connection Points
Typical Control with Wiring Options for Fire Safety Interface (Option R2)
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Form No. PS
Page 4 of 5
BIF Doc# 1145
Bussmann®Power Module
™
Switch PS
All-In-One Module
Form No. PS
Page 5 of 5
BIF Doc# 1145
Section 16XXX – Power Module Switch
(Elevator) (Computer Room) (Emergency Systems)
Part 1 – General
1.01 Description
A. Work of this section shall conform to the requirements
of the Contract Documents.
1.02 Section Includes
A. Provide Elevator Power Module Switch(es), fuses and
accessories as required and specified on Contract
Drawings to distribute electrical power to all Elevators.
1.03 Related Systems
A. (Reference other sections of the specification which
cover Elevator installation)
1.04 Codes
A. All work shall be performed in accordance with the
latest edition of applicable standards, codes and laws.
1. NFPA 70 – 1999 Section 620-51 (a)-(c), 620-62,
620-91(c)
2. Canadian Electric Code Part 1 38-034(3)
3. ANSI/ASME A17.1 – 1996 Section 102.2 (c) (3)
4. BOCA 3006.2.3
5. NFPA 72 – 1999 Section 3-9.4.4
1.05 Standards
A. Except as modified by governing codes, all equipment
shall be manufactured in accordance with the latest
applicable standards:
1. Enclosed Switches, U.L. 98 and CSA – C22.2 No. 4
1.06 Substitutions
A. Substitutions shall comply with the requirements of
the General Conditions and General Requirements.
The names of manufacturers and model numbers
have been used to establish types of equipment and
standards of quality. A submittal shall contain sufficient
information to prove compliance with Contract
Documents. This includes compliance with all pertinent
sections of codes and standards as specified above.
1.07 Submittals
A. Submit shop drawings and product data under the
provisions of the General Conditions.
B. Product Data: Provide manufacturer’s catalog
information showing dimensions, configurations,
and methods of mounting and installation.
C. Submit listing of all types, sizes and quantity of fuses
which will be installed including the location of each.
D. Spare fuses shall be supplied as required by
(reference fuse specification section).
Part 2 – Products
2.01 Manufacturers
A. Bussmann
®
Power Module™Switch – PS
2.02 General Conditions & Requirements
A. Provide Power Module Switch in a single NEMA
enclosure with all necessary relay(s), control
transformer and other options (as listed below), and as
shown on drawings. The Power Module Switch shall
be constructed, listed, and certified to the standards
as listed in above. The Power Module Switch shall
have an ampere rating as shown on the Contract
Drawings, and shall include a horsepower rated fusible
switch with shunt trip capabilities. The ampere rating of
the switch shall be based upon elevator manufacturer
requirements and utilize Class J Fuses (provided
separately). It shall include as an accessory, a 100VA
control power transformer with primary and secondary
fuses. The primary voltage rating shall be ______ volts
with a 120 volt secondary. It shall also contain an
isolation relay (3PDT, 10 amp, 120V). The coil of the
isolation relay shall be _______ (120 V AC or 24 V DC).
A normally open dry contact shall be provided by the
Fire Alarm Safety System to energize the isolation relay
and activate the shunt trip solenoid (140VA inrush at
120V). (Note: If 24 V DC coil is selected, a separate 24
V DC source and contact
must be provided by the Fire Alarm Safety System.)
The module shall contain the following options:
_____ Key to Test Switch
_____ “ON” Pilot Light (Green, Red or White)
_____ Isolated Full Capacity Neutral Lug
_____ 1P NC Mechanicallly Interlocked Auxiliary
Contact (required for hydraulic elevators with
automatic recall).
_____ Fire Alarm Voltage Monitoring Relay (Needed to
comply with NFPA 72)
_____ NEMA ____ Enclosure (NEMA 1 standard),
12, 3R or 4) (through 200A)
Complete catalog number for the Power Module
Switch shall be _______________.
The module shall have been successfully tested to a
short circuit rating with Bussmann
®
LOW-PEAK
®
Class J fuses at 200,000 amps RMS Symmetrical. All
switches shall have shunt trip capabilities at 120 V AC
from remote fire safety signal. Branch feeders shall be
selectively coordinated and fed with an upstream
supply overcurrent protective device at a minimum of
2:1 size ratio utilizing LOW-PEAK
®
(Class J, RK1, or L)
fuses.
Part 3 – Execution
3.01 Installation
A. All material installation shall be in accordance with
manufacturers recommendations and the provisions
of applicable codes.
B. Fuses shall not be installed until equipment is ready
to be energized.
Bussmann
®
8-29-01
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The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This
bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice,
to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical
information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
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