Eaton Crouse-hinds gfs series Setup guide

GFS ground fault circuit interrupter

Installation & maintenance information

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE

IF 1007

IMPORTANT INFORMATION

A GFS ground fault circuit interrupter reduces the hazards of ground fault currents that

can cause loss of life. Upon detecting a ground fault current (exceeding 5 milliamps) in

the protected branch circuit, the GFS unit will trip, interrupting power. Even with GFS unit

limiting ground fault current, some electrical shock may be felt. Such shock will normally

be of less than dangerous duration. However, persons with heart problems or other

medical conditions that may make that person susceptible to the effects of electrical shock

may still be seriously injured. While the GFS ground fault circuit interrupter provides

a signicant level of protection, there is no known device that can provide complete

protection from all hazards of electrical accidents under all conditions.

The GFS unit will not protect against short circuits or overloads. A circuit breaker or fuse

controlled switching system that supplies power to the branch circuit must provide that

protection.

When the GFS unit has interrupted a ground fault current caused by faulty insulation,

defective equipment or wet wiring, the fault must be repaired before the GFS unit is reset.

The GFS unit must be tested upon completion of initial installation and at regular intervals

in an established testing program.

APPLICATION

GFS ground fault circuit interrupter is used with portable electrical equipment to protect

against possible injury due to unwanted ground faults, meeting the requirements for

personnel protection as dened by the National Electrical Code®(NEC) and the Canadian

Standards Association. When mounted on proper body, no additional sealing is required. A

factory sealed chamber encloses the unit in a housing with explosionproof ground joints.

GFS interrupter is suitable for use in Class I, Groups C, D; Class II, Groups E, F, G; and Class

III hazardous (classied) areas as dened by the National Electrical Code. ENR receptacles

are not suitable for use in Class II, Group E environments, including when used as ENR

GFCI kit (example: ENR22201 GFI).

GFS ground fault interrupter is a feed through type to serve receptacles in a branch circuit of

15 to 20 amperes at 125 volts AC. They are intended for use with Crouse-Hinds series ENR

or CPS152 receptacles.

!CAUTION

To prevent water ingress:

Do not install in corrosive areas or areas exposed to rain, hose down or water runoff.

INSTALLATION

Before starting, read all instructions contained in this installation and maintenance

information sheet.

1. Install single- or two-gang standard, or two- or three-gang tandem EDS or EDSC

device box (ordered separately) in desired location and connect into grounded conduit

system.

NOTE: GFS units cannot be installed on EDSCM multi-gang modular control device bodies.

2. Pull all power source (line) wiring and receptacle (load) wiring into device box.

3. Attach wiring from GFS factory sealed chamber to power source and receptacles

wiring in an approved manner. Make all connections following wiring diagram for your

specic wiring system.

4. Insert wiring, then factory sealed chamber into device box with internal TEST and

RESET buttons positioned correctly. TEST button on external cover MUST be lined up

with TEST button of device in sealing well (clearly marked).

5. Place external cover over factory sealed chamber per Step 4, and attach with the four

(4) screws provided. Tighten screws to 30 in.-lbs. torque.

6. Do not use GFS unit until it has been fully and successfully tested as specied in

TESTING PROCEDURE.

!CAUTION

To avoid the risk of electric shock:

• Be sure all electrical power is OFF before starting installation and maintenance.

• Install on 120 VAC grounded circuit only that is protected by properly rated

circuit breaker or fuse.

• Install GFS between circuit breaker or fuse and receptacles.

• Connect to copper wire only.

• Install GFS unit as close as practical to protected receptacles.

!WARNING

To avoid the risk of explosion:

Clean both ground joint surfaces of cover, internal sealing chamber and device

box before tightening screws. Dirt or foreign material must not accumulate on flat

ground joint surfaces. Surfaces must fully seat against each other to form a proper

explosionproof seal.

TESTING PROCEDURE

1. Turn power ON to branch circuit receptacle protected by GFS unit.

2. Press the TEST button on GFS unit, the RESET button should extend outward

displaying a red o-ring.

3. Plug a test lamp or meter into a protected receptacle. If the test lamp lights (or

meter indicates a voltage reading), this indicates that the connections have been

wired incorrectly. Turn off power to circuit and correct wiring before proceeding

further. If the test lamp does not go on, or meter indicates zero voltage reading,

proceed to the next step.

4. Press the RESET button rmly until an audible click is heard. The test lamp should

now turn on. Press the TEST button again. The test lamp should go OFF and RESET

button extend outward. This indicates proper wiring connection to that receptacle.

5. With the RESET button extended, test the other receptacles in the branch circuit

protected by the GFS unit. If the test lamp lights or the meter indicates a voltage

reading, this indicates that the receptacle is NOT protected by the GFS unit. Turn

power OFF to circuit and correct the wiring. Test all receptacles protected by the

GFS unit.

6. Attach the self-adhesive “GROUND FAULT PROTECTED” label to each receptacle

protected by the GFS unit.

7. Establish and maintain a regular monthly testing schedule.

!WARNING

To avoid the risk of explosion:

If receptacle to be tested is located in a normally hazardous area, that area must be

purged of the hazard and declared non-hazardous before starting testing procedure.

All statements, technical information and recommendations contained herein are based on information and tests we believe to be reliable. The accuracy or completeness thereof are not

guaranteed. In accordance with Eaton’s Crouse-Hinds Division’s “Terms and Conditions of Sale,” and since conditions of use are outside our control, the purchaser should determine