NNrmally Entrgiztd MNdtls
Used for detecting ground faults and loss of control power.
Output
No Power
Control Power Applied
No Fault
Fault Detected
Output
LED
Output LED
Output LED
N.C.
Closed
Off
Open
On
Closed
Off
N.O.
Open
Off
Closed
On
Open
Off
NNrmally Dt-Entrgiztd MNdtls
Used for detecting ground faults only.
Output
No Power
Control Power Applied
No Fault
Fault Detected
Output
LED
Output LED
Output LED
N.C.
Closed
Off
Closed
Off
Open
On
N.O.
Open
Off
Open
Off
Closed
On
Setpoint Adjustment
The EGF Series sensors are factory calibrated to trip at the setpoint
specified by the model number. While it is generally recommended
not to change this setpoint, it can be done by following the below
steps.
1. Connect control power and circuits. Run a conductor through
the aperture with current equal to your desired setpoint.
2. Adjust setpoint to maximum by first removing the setpoint cover.
Turn the adjustment pot four revolutions counter-clockwise to the
maximum (least sensitive) setpoint. The Status LED should be
off. The adjustment pot has a slip clutch so that you cannot feel
or damage the end point.
3. Dial in the new setpoint by slowly turning the pot clockwise until
the LED turns on. The sensor is now adjusted to trip at the cur-
rent that is passing through the aperture. Reset the sensor.
4. Relabel the sensor with a new setpoint. Use a label maker or
tape with a permanent marker.
Power Supply Notes
All low-current ground-fault sensors are sensitive devices that
require reasonable care in system design to avoid false trips caused
by high electrical noise levels. Keep in mind that the best way to
reduce noise in a system is to suppress it at its source.
•
Keep the sensor power isolated from noisy circuits.
•
Do not power the sensor with the same circuit that switches contac-
tors or other high current inductive loads.
System Grounding
Good design practice and code require that all AC power systems be
grounded. The EGF Series sensors are designed to work on grounded
AC power systems. They may not operate properly on ungrounded sys-
tems.
Specifications
Specification
Value
Power Supply
120 VAC (Operates from 66-132 V)
Voltage Range
Up to 1,500 VAC (Monitored Circuit)
Power Consumption
2.5 W
Output
Magnetically Isolated Solid State Switch
Output Rating
AC Models:
1 A @ 240 V C (2 A for 10 min.)
DC Models:
0.15 A @ 30 VDC (500 mA Momentary)
Response Time
At 5% Over Setpoint: 150 ms
At 50% Over Setpoint: 100 ms
Setpoint Range
Models Ending -T3:
5, 10, or 30 mA (Adjustable by Jumper)
All Other Models:
50 or 100 mA (See “Setpoint Adjustment”)
Frequency Range
50-400 Hz (Monitored Circuit)
Housing
UL94 V0 Flammability Rated
Dimensions
Housing: 2.5 in. H x 2.8 in. W x 1.5 in. D (64 x 71 x 38 mm)
Aperture: 0.75 in. (19 mm)
LED
Green = Power Supply Energized
Environmental
Operating Temperature: +5 to +158°F (-15 to +70°C)
Humidity: 0-95% RH, Non-Condensing
Approvals
UL Recognized, E313337
CE
RoHs Compliant
3
EATON
www.eaton.com
Instructions Publication
P51925
Effective July 2017
CurrentWatch™ EGF Series Ground Fault Sensors
120 VAC Powered, N.O. or N.C.,
Solid State Relay Output
