Ground Fault Relays
WILMAR™ Protective Relays – WC1G Series - Grounded
TERMINAL STRIPS
#6 - 32 SCREWS
Function:
WILMAR Ground Fault Detectors are designed to pro-
vide very sensitive Ground-Current protection for mo-
tor, equipment and personnel from damage or electrical
shock. In a ground system, the leakage current is moni-
tored through a toroidal or doughnut current transformer
placed around the supply conductors to a motor, trans-
former, equipment or outlets. Since the sums of the
current in a system add to zero, the relay is responsive
only to ground-fault current.
Operation:
The output contacts are shown in de-engerized
position. They will change state when these condi-
tions are met:
1. Control voltage is applied.
2. Leakage current exceed the trip setting.
3.8
3.0
Note:
Dimensions in inches.Multiply by values by 25.4 for dimensions in mm.
Part Number
CT Window Diameter .......................
Leakage Current Range ................... 10 to 60 mA
Control Voltage ................................ See Part Number Selection
Output Contacts ............................... One set N.C., one set N.O.
Operating Temperature .................... 40
o
C to +65
o
C
Contact Ratings ................................ 10 amp resistive at 250 Vac, 8 amp. resistive @ 30 Vdc
Notes:
1. Remove screw for acess to the pick-up adjustment potentiometer.
2. Clockwise rotation of the adjustment potentiometer will raise the relay sensitivity.
Tyco Electronics
/ www.tycoelectronics.com / Factory Direct Technical Support: 800-253-4560, ext. 2023 (U.S., Canada, Mexico) or 805-220-2020, ext. 2023 (International)
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4 MTG. HOLES
17 64
"
Current Transformer
PRODUCT SPECIFICATIONS
PART NUMBER SELECTION
Sample Part No.
Model:
WCIG-
Control Voltage
120AC
220AC
230AC
380AC
400AC
460AC
480AC
575AC
WC1G-120AC
WC1G Series
1.7 inches (std) or can be specified by customer
45
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