Eaton Crouse-Hinds Series Installation & Maintenance Information

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GFS1 M4 ground fault circuit interrupterInstallation & maintenance information SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCEIF 1499IMPORTANT INFORMATIONA GFS ground fault circuit interrupter reduces the hazards of ground fault currents thatcan cause loss of life. Upon detecting a ground fault current (exceeding 5 milliamps) inthe protected branch circuit, the GFS unit will trip, interrupting power. Even with GFS unitlimiting ground fault current, some electrical shock may be felt. Such shock will normallybe of less than dangerous duration. However, persons with heart problems or othermedical conditions that may make that person susceptible to the effects of electrical shockmay still be seriously injured. While the GFS ground fault circuit interrupter providesa significant level of protection, there is no known device that can provide completeprotection from all hazards of electrical accidents under all conditions.The GFS unit will not protect against short circuits or overloads. A circuit breaker or fusecontrolled switching system that supplies power to the branch circuit must provide thatprotection.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 intervalsin an established testing program.APPLICATIONGFS ground fault circuit interrupter is used with portable electrical equipment to protectagainst possible injury due to unwanted ground faults, meeting the requirements forpersonnel protection as defined by the Canadian Electrical Code (CEC) and the CanadianStandards Association (CSA). When mounted on proper body, no additional sealing isrequired. A factory sealed chamber encloses the unit in a housing with explosionproofground joints.GFS interrupter is suitable for use in Class I, Groups B, C, D; Class II, Groups E, F, G;Class III hazardous locations when mounted on EDS single-gang boxes, and Class I,Groups C, D; Class II, Groups E, F, G; Class III hazardous locations when mounted onEDS multi-gang boxes. NOTE: When used on EDS multi-gang boxes combined withan ENR receptacle, they are only suitable for Class I, Groups C, D; Class II, Groups F, G;Class III hazardous locations. ENR receptacles are not suitable for use in Class II, Group Eenvironments, including when used as ENR GFCI kit (example: ENR22201 GFI).GFS ground fault interrupter is a feed though type to serve receptacles in a branch circuit of15 to 20 amperes at 120 volts AC. They are intended for use with Crouse-Hinds series ENRor CPS152 receptacles.IF 1499 • 08/18 Copyright © 2018, Eaton’s Crouse-Hinds Division Page 1! CAUTIONTo prevent water ingress:Do not install in corrosive areas or areas exposed to rain, hose down or water runoff.INSTALLATIONBefore starting, read all instructions contained in this installation and maintenanceinformation sheet.1. Install single- or two-gang standard, or two- or three-gang tandem EDS or EDSCdevice box (ordered separately) in desired location and connect into grounded conduitsystem.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 receptacleswiring in an approved manner. Make all connections following wiring diagram for yourspecific wiring system.4. Insert wiring, then factory sealed chamber into device box with internal TEST andRESET buttons positioned correctly. TEST button on external cover MUST be lined upwith 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 specified inTESTING PROCEDURE.! CAUTIONTo 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 ratedcircuit 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.! WARNINGTo avoid the risk of explosion:Clean both ground joint surfaces of cover, internal sealing chamber and devicebox before tightening screws. Dirt or foreign material must not accumulate on flatground joint surfaces. Surfaces must fully seat against each other to form a properexplosionproof seal.TESTING PROCEDURE1. 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.3. Plug a test lamp or meter into a protected receptacle. If the test lamp lights (ormeter indicates a voltage reading), this indicates that the connections have beenwired incorrectly. Turn off power to circuit and correct wiring before proceedingfurther. If the test lamp does not go on, or meter indicates zero voltage reading,proceed to the next step.4. Press the RESET button firmly until an audible click is heard. The test lamp shouldnow turn on. Press the TEST button again. The test lamp should go OFF and RESETbutton extend outward. This indicates proper wiring connection to that receptacle.5. With the RESET button extended, test the other receptacles in the branch circuitprotected by the GFS unit. If the test lamp lights or the meter indicates a voltagereading, this indicates that the receptacle is NOT protected by the GFS unit. Turnpower OFF to circuit and correct the wiring. Test all receptacles protected by theGFS unit.6. Attach the self-adhesive “GROUND FAULT PROTECTED” label to each receptacleprotected by the GFS unit.7. Establish and maintain a regular monthly testing schedule.! WARNINGTo avoid the risk of explosion:If receptacle to be tested is located in a normally hazardous area, that area must bepurged of the hazard and declared non-hazardous before starting testing procedure.

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