ERICO EPD100HZ120TDF User Manual
FIG.1FIG.
2
91/
4
G
Fused Primary Surge Protectors
Parallel TVSS Filters
Installation Instructions
EPD25HZ120TDF (25Hz, 120 VAC)
EPD100HZ120TDF (100Hz, 120 VAC)
81/2
6
UNIT OPERATING STATUS
STAGE1 STAGE1
LINE1 LINE2
STAGE2 STAGE2
TM
R
103/4111/2
E R I C O P R O T E C T I O N D E V I C E S
120 VAC - 100 HZ
PANELPROTECTOR
FORM'C'
CONT ACTS
COM
NC
NO
COM
NC
NO
CONTACTS
FORMC
6
MOUNTINGSCREWS
1234
SUPPLIED
INPUT OUTPUT
L2 L2
L1 L1
G
L2
L1
G
EPD
FIG. 3
CABLEENTRY
33/4
PREPARATION
DANGER: Electrical shock or burn hazard.
Installation of Primary Surge Protector should be
made by qualified personnel. Failure to lockout
electrical power during installation or maintenance can
result in fatal electrocution or severe burns.
1. Disconnect and lockout power to the breaker box (load
center) or point where the Primary Surge Protector is to
be installed. Follow all applicable electrical codes &
procedures.
CAUTION: Check to make sure line voltage does
not exceed Surge Protector voltage requirement.
Note also the AC frequency requirements of these
Surge Protectors.
PROTECTOR MOUNTING AND LOCATION
2. The Surge Protector is to be mounted as close to the
power entrance point as possible to maximize
performance.
3. The Surge Protector can be attached directly to a wall
panel:
a) Drill 3/16 diameter pilot hole in the wall panel. See
FIG. 1 for mounting hole configuration.
b) Mount unit with (4) #12 x 3/4-lg. screws supplied.
See FIG. 2
1998 ERICO Inc, 34600 Solon Rd, Solon, OH 44139 Page 1 of 3 Doc: HBCR1231DOC.DOC, Iss: 2, Date: 27JUL98
AC ELECTRICAL CONNECTION
4. The Surge Protector should be wired as shown in FIG. 3
to provide maximum performance. This allows for a
“zero” lead length or Kelvin connection to the Surge
Protector. When using this recommended method, use
the two outer knockouts, so that the input wiring enters
on one side, and the output wiring exits on the other side.
It is possible to wire the unit parallel to the supply. In
this case, tap conductors are run into the unit (the single
center knockout may be used), and only one wire lead
terminates on each wiring terminal. This method does
not provide the optimum surge performance of the
recommended Kelvin connection method.
NOTE: Where a supply transformer is used, the Surge
Protector should be placed on the load side of the supply
transformer for optimal performance.
5. The knockouts are sized to fit 1” fittings, but may be
enlarged if necessary to take larger fittings. The
terminals will accept wiring up to #2 AWG, but the
maximum wire size possible will be determined by the
type of wire and the fitting size used. Ensure that the
wiring size chosen meets applicable codes.
NOTE: The Surge Protector must be properly and securely
connected to the system ground. Note also that there is no
neutral connection available on this unit.
FIG.4
Fused Primary Surge Protectors
Parallel TVSS Filters
EPD25HZ120TDF (25Hz, 120 VAC)
EPD100HZ120TDF (100Hz, 120 VAC)
L1
L2
EPD
120 VAC
TM
G
R
E R I C O P R O T E C T I O N D E V I C E S
WIRINGDIAGRAM
INPUT OUTPUT
L1 L1
L2 L2
G G
MINIMUMINSTALLATIONWIREREQUIREDIS#10 AWG
NOTE:
ONLYCLA SS2CIRCUITSTOBEWIREDTOALARMCONTACTS
SYSTEMVOLTAGE
6. Wiring to and from the Surge Protector terminals should
have the bend radius kept large where applicable (4"-8”
recommended). The wire leads should be kept as short as
possible and twisted together for optimal performance.
The terminals should be tightened as recommended in
the following table:
Wire Size (AWG) 14-10 8 6-4 3-2
Torque (in.lbs) 35 40 45 50
ALARM RELAY CONNECTION
7. This Surge Protector unit is provided with a set of Form
‘C’ contacts (FIG. 1) which can be wired to indicate
when the Surge Protector has sustained damage. The
contacts are rated at 2A 30Vdc, 0.6A 110Vdc, 0.6A
125VAC. By common convention, the NO (normally
open) and NC (normally closed) contacts adopt these
conditions when the Surge Protector is de-energized.
This means that when the Surge Protector is powered on
and is fully operational (both status LEDs illuminated),
the NC contact will be open, and the NO contact will be
closed. Should power be lost to the Surge Protector (this
may include one of the fuses blowing – see Maintenance
section below), or the protection circuitry fail (one or
both of the status LEDs extinguish on any given line), the
relay contacts will change state, such that the NC contact
will be closed, and the NO contact will be open.
CAUTION: The relay contact wiring block has
exposed terminals, and must not be wired with
hazardous voltages.
ENGAGING POWER
TM
GROUND
REPLACEWITH
SAME TYPE
FUSE ONLY
ClassCC
30 AMP 600 VAC
R
E R I C O P R O T E C T I O N D E V I C E S
LINE1 LINE2
8. Tighten and verify all connections, close Surge Protector
box and engage power to the protector. All Status LEDs
should come on, and relay should change state,
indicating correct operation. If not, disconnect power,
check wiring, check the fuses, rectify any deficiencies,
and repower. If still experiencing difficulties, please
contact your supplier, or the manufacturer:
ERICO, Inc.
Rail Electrical Products
34600 Solon Rd
Solon OH 44139
Ph. (800) 447-7245
Ph. (440) 542-3939
INDICATORS
9. There are two LEDs on the front panel for each line
protected which, when illuminated, indicate that the
protection circuitry is operating correctly for that line. If
one LED has extinguished, the Surge Protector has
sustained a surge beyond its ratings, and the protection
has been compromised. While there is still some
protection provided, the Surge Protector should be
replaced as soon as possible. If both LEDs for one line
have extinguished, no protection is being provided.
Replace the Surge Protector immediately.
MAINTENANCE
10. This unit requires no regular preventative maintenance.
However, if the unit receives a large surge, one or more
of the internal fuses may blow. If this occurs, replace the
blown fuse(s) with identical types (Class CC, 30A,
600VAC) and repower. All Status LEDs should come on,
and relay should change state, indicating correct
operation. If not, the protector has suffered internal
1998 ERICO Inc, 34600 Solon Rd, Solon, OH 44139 Page 2 of 3 Doc: HBCR1231DOC.DOC, Iss: 2, Date: 27JUL98
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