Eaton Crouse-Hinds GFSX1 Installation & Maintenance Information

GFSX1 ground fault circuit interrupterInstallation & maintenance information SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCEIF 1937IMPORTANT INFORMATIONA GFSX1 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) in theprotected branch circuit, the GFSX1 unit will trip, interrupting power. Even with GFSX1 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 GFSX1 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 GFSX1 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 GFSX1 unit has interrupted a ground fault current caused by faulty insulation,defective equipment or wet wiring, the fault must be repaired before the GFSX1 unit isreset. The GFSX1 unit must be tested upon completion of initial installation and at regularintervals in an established testing program.APPLICATIONGFSX1 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 National Electrical Code (NEC), Canadian ElectricalCode (CEC) and the Canadian Standards Association (CSA). When mounted on properbody, no additional sealing is required. A factory sealed chamber encloses the unit in ahousing with explosionproof ground joints.GFSX1 interrupter is suitable for use in Class I, Division 2, Groups B, C, D; Class II, GroupsE, F, G; Class III hazardous locations. NOTE: When used on EDS multi-gang boxescombined with an ENRX receptacle, they are only suitable for Class I, Division 2, GroupsB, C, D; Class II, Groups F, G; Class III hazardous locations. ENRX receptacles are notsuitable for use in Class II, Group E environments, including when used as ENRX GFCI kit(example: ENRX22201 GFI).GFSX1 ground fault interrupter is a feed though type to serve receptacles in a branchcircuit of 15 to 20 amperes at 120 volts AC. They are intended for use with Crouse-Hindsseries ENRX receptacles.IF 1937 • 11/22 Copyright © 2022, Eaton’s Crouse-Hinds Division Page 1INSTALLATIONBefore starting, read all instructions contained in this installation and maintenanceinformation sheet.1. Install single-gang or two-gang standard, or two-gang or three-gang tandem EDS orEDSC device box (ordered separately) in desired location and connect into groundedconduit system.NOTE: GFSX1 units cannot be installed on EDSCM multi-gang modular control devicebodies.2. Pull all power source (line) wiring and receptacle (load) wiring into device box.3. Attach wiring from GFSX1 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 60 in.-lbs. torque.6. Do not use GFSX1 unit until it has been fully and successfully tested as specified inTESTING PROCEDURE.! CAUTIONTo avoid the risk of electric shock:• Installation and maintenance procedures must be performed by a trained andcompetent electrician.• 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 GFSX1 between circuit breaker or fuse and receptacles.• Connect to copper wire only.• Install GFSX1 unit as close as practical to protected receptacles.! WARNINGTo avoid the risk of explosion and to maintain environmental rating: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 GFSX1 unit.2. Press the TEST button on GFSX1 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 GFSX1 unit. If the test lamp lights or the meter indicates a voltagereading, this indicates that the receptacle is NOT protected by the GFSX1 unit. Turnpower OFF to circuit and correct the wiring. Test all receptacles protected by theGFSX1 unit.6. Attach the self-adhesive “GROUND FAULT PROTECTED” label to each receptacleprotected by the GFSX1 unit.7. Establish and maintain a regular monthly testing schedule.! WARNINGTo avoid the risk of explosion and to maintain environmental rating: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.! WARNINGTo avoid risk of electric shock and to maintain environmental rating:Keep cover screws tight when in operation. Only use screws supplied with theassembly or Eaton’s Crouse-Hinds replacement screws.MAINTENANCE1. Perform visual, electrical and mechanical inspections on a regular basis. The environ-ment and frequency of use should determine this. However, it is recommended thatchecks be made at least once a year.2. Make sure screws holding the GFSX1 cover and sealing chamber to the back box aretight. Inspect flange gaskets for damage. Ensure gaskets are fully seated in the gasketgroves.3. Inspect machined flanges for any damage or corrosion.In addition to these required maintenance procedures, we recommend an Electrical PreventiveMaintenance Program as described in the National Fire Protection Association Bulletin NFPA70B: Recommended Practice for Electrical Equipment Maintenance (www.nfpa.org).WARNINGTo avoid risk of explosion,If any part of the ground fault circuit interrupter appears to be broken or shows signsof any damage - discontinue use immediately. Replace the item before continuingservice.Replace devices if the machined flange is damaged, scratched, dented or corroded.Field re-work of machined flange is not possible.!! CAUTIONTo avoid risk of explosion:Mount GFSX1 ground fault circuit interrupter to Eaton’s Crouse-Hinds series EDSback boxes.

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