ERICO EPD100HZ120TDF (100Hz, 120 VAC) Fused Primary Surge Protectors - Manual (Page 2)

Fused Primary Surge Protectors
Parallel TVSS Filters
 1998 ERICO

Inc, 34600 Solon Rd, Solon, OH 44139 Page 2 of 3 Doc: HBCR1231DOC.DOC, Iss: 2, Date: 27JUL98
EPD25HZ120TDF (25Hz, 120 VAC)
EPD100HZ120TDF (100Hz, 120 VAC)
GROUND
LINE 1 LINE 2
REPLACE WITH
SAME TYPE
FUSE ONLY
Class CC
30 AMP 600 VAC
E R I C O P R O T E C T I O N D E V I C E S R
TM
SYSTEM VOLTAGE
120 VAC
WIRING DIAGRAM
INPUT OUTPUT
EPD
L1
L1 L1
L2
L2 L2
G
G G
E R I C O P R O T E C T I O N D E V I C E S R
T M
MINIMUM INSTALLATION WIRE REQUIRED IS #10 AWG
NOTE: ONLY CLASS 2CIRCUITS TO BE WIRED TO ALARM CONTACTS
FIG. 4
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
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