Overview
The Hubbell GFBFST20W is a heavy-duty commercial self-test GFCI receptacle with blank face design, rated for 20A at 125V. Engineered with Hubbell’s patented AUTOGUARD® self-test technology, this receptacle continuously monitors its own ground fault protection capability and automatically disconnects power if critical components are damaged. The blank face design integrates seamlessly into industrial and commercial electrical systems while meeting all NEC® and NEMA® WD-6 requirements.
Key Features
- AUTOGUARD® Self-Test Technology: Continuous auto-monitoring every 30 seconds ensures protection is always active; disconnects power automatically if GFCI protection is lost
- Blank Face Style: Clean, streamlined appearance for commercial installations without visible outlet face
- Triple Wipe Contacts: Brass power and ground contacts with triple-wipe construction for reliable connections
- Quick Termination: Internal back wiring clamp and guide enable fast, secure conductor connections; terminal screw terminals accept 14-12 AWG wire
- Visual Status Indicators: Clear indicators display power status, trip condition, ground fault condition, and end-of-life status
- Commercial Grade Durability: Heavy-duty construction rated for high-cycle installations; UL listed and CSA certified
Technical Specifications
- Voltage Rating: 125 VAC, 60 Hz
- Current Rating: 20 A
- Configuration: 2-Pole, 3-Wire (5-20R)
- Material: Nylon face and base; brass contacts; zinc-plated steel mounting hardware
- Wiring Method: Back and side wired with internal clamp guide
- Wire Gauge: 14-12 AWG
- Operating Temperature: −30°F to 150°F
- Dimensions: 1.75 in. W × 1.47 in. D
- Color: White
- Grade: Commercial
- Certifications: UL 943 listed, CSA certified, meets NEMA® WD-6 and NEC® requirements
Typical Applications
- Commercial buildings and industrial facilities requiring continuous GFCI protection
- Wet locations and areas where accidental contact with water is possible
- High-traffic electrical installations where outlet reliability and safety monitoring are critical
- Plant maintenance applications requiring automatic fault detection and disconnection
- Facilities requiring compliance with 2015 UL 943 GFCI Safety Standard auto-monitoring requirements
Compatibility & Replacements
Compatible With
- Standard North American 125V electrical systems rated for 20A service
- All NEC®-compliant wiring installations
- NEMA 5-20R outlet boxes and covers
- Systems requiring UL 943 certified GFCI protection
Replaces / Drop-In Replacement For
- Hubbell standard GFCI receptacles in the same 20A 125V 5-20R configuration
- Other commercial-grade 20A GFCI outlets with identical mounting footprint and terminal layout
- Verify compatibility with your existing outlet box and wire gauges before installation
Works With
- Flush-mount outlet boxes and standard electrical enclosures
- Screw terminal connections with 14-12 AWG solid or stranded copper conductors
- Back wiring clamp for rapid, secure installation
- Standard electrical testing equipment and ground fault detection devices
