Appleton GFS-1 Factory Sealed Ground Fault Circuit Interrupter Catalog Page
Plugs and RecePtacles: nec/cec HazaRdous location
© November 2016
GFS-1 Factory Sealed Ground Fault Circuit Interrupter
For U-Line™ Contender™ 20 Amp Receptacles. Explosionproof, Dust-Ignitionproof
125 Vac Branch Circuits. Installs in Standard Contender Series Mounting Box.
NEC:
Class I, Division 1 and 2, Groups C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 3RX, 7CD, 9EFG
Applications
• Provides required ground fault protection for portable
electrically-operated devices. Meets all UL and CSA
requirements for ground fault protection in hazardous locations.
• Well suited for use in highly corrosive atmospheres and wet
locations.
• Can be used in conjunction with U-Line™ factory sealed
Contender receptacle on 20 Amp, 125 Vac branch circuits.
Features
• Covers are UL Listed when used with Contender™ Series back
boxes.
• Factory sealed construction; no external seals are required.
Arcing is conned within the device’s interior sealed chamber.
• Rated 20 Amp, 125 Vac, 5 mA trip setting.
• Smooth-operating test and reset buttons.
Standard Materials
• Cover and sealing chamber cast copperfree (less than 4/10 of
1%) aluminum
• Cover bolts, test and reset buttons and shafts: stainless steel
NEC Certifications and Compliances
• UL Listed: E81751
• UL Standard: UL 943, UL 1203
Dimensions in Millimeters (Inches)
Description Catalog Number
Aluminum Ground Fault Interrupter Cover/Device GFS1
Covers are UL Classified to mount on Crouse-Hinds® EDS back boxes. Crouse-Hinds, EDS and ENP are registered trademarks of Cooper Crouse-Hinds.
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Plugs and RecePtacles: nec/cec HazaRdous location
© November 2016
GFS-1 Factory Sealed Ground Fault Circuit Interrupter
For U-Line™ Contender™ 20 Amp Receptacles. Mounting Boxes
NEC/CEC:
Class I, Division 1 and 2, Groups C, D
Class II, Division 1 and 2, Groups E, F, G
Class III
NEMA 3, 7CD, 9EFG
EDS Cast Device Mounting Boxes
Hub Size
Type A B C Malleable Iron Aluminum
(Inches)
Dimensions in Millimeters (Inches) Catalog Number
Single Gang
Two Gang
Tandem
Dead-End
Feed-Thru
Dead-End
Feed-Thru
Dead-End
Feed-Thru
1/2 153.9 (6.06) 172.9 (6.81) 19.0 (0.75) EDS171 EDS171-SA
3/4 153.9 (6.06) 172.9 (6.81) 22.3 (0.88) EDS271 EDS271-SA
1 156.7 (6.17) 178.5 (7.03) 25.4 (1.00) EDS371 EDS371-SA
1/2 153.9 (6.06) 172.9 (6.81) 19.0 (0.75) EDSC171 EDSC171-SA
3/4 153.9 (6.06) 172.9 (6.81) 22.3 (0.88) EDSC271 EDSC271-SA
1 156.7 (6.17) 178.5 (7.03) 25.4 (1.00) EDSC371 EDSC371-SA
1/2 153.9 (6.06) 172.9 6.81) 22.3 (0.88) EDS172 EDS172-SA
3/4 153.9 (6.06) 172.9 (6.81) 22.3 (0.88) EDS272 EDS272-SA
1 156.7 (6.17) 178.5 (7.03) 25.4 (1.00) EDS372 EDS372-SA
1/2 153.9 (6.06) 172.9 (6.81) 22.3 (0.88) EDSC172 EDSC172-SA
3/4 153.9 (6.06) 172.9 (6.81) 22.3 (0.88) EDSC272 EDSC272-SA
1 156.7 (6.17) 178.5 (7.03) 25.4 (1.00) EDSC372 EDSC372-SA
1/2 287.2 (11.31) 307.0 (12.09) 22.3 (0.88) EDS147 EDS147-SA
3/4 287.2 (11.31) 307.0 (12.09) 22.3 (0.88) EDS247 EDS247-SA
1 290.5 (11.44) 312.6 (12.31) 25.4 (1.00) EDS347 EDS347-SA
1/2 287.2 (11.31) 307.0 (12.09) 22.3 (0.88) EDSC147 EDSC147-SA
3/4 287.2 (11.31) 307.0 (12.09) 22.3 (0.88) EDSC247 EDSC247-SA
1 290.5 (11.44) 312.6 (12.31) 25.4 (1.00) EDSC347 EDSC347-SA
Dimensions in Millimeters (Inches)
Single Gang Box Two Gang Box Single/Two Gang Box Side View Tandem
Ø 8.1 mm (0.32”)
A
B
149.3 mm
(5.88”)
159.2 mm
(5.09”)
149.3 mm
(5.88”)
3.50”
88.9 mm
66.8 mm
(2.63”)
88.9 mm
(3.50”)
For tandem bodies, external seals must be installed within 1.52 meters (5 feet) of each conduit entrance for Class I, Groups C and D.
33.2 mm
(1.31”)
182.6 mm
(7.19”)
404
60°
81.2 mm
(3.20”)
157.2 mm
(6.19”)
77.7 mm
(3.06”)
C
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