Overview
The Hubbell HBL2431 is a heavy-duty industrial Twist-Lock® plug designed for 20A, 3-phase 480VAC power circuits. The plug uses NEMA L16-20P configuration with 3-pole, 4-wire grounding to support demanding industrial applications requiring secure mechanical and electrical connections. Built with black and white nylon housing and screw terminals, the HBL2431 delivers reliable performance in portable cord assemblies where safety and durability are critical.
Key Features
- Superior Cord Grip Design: Protects terminations from excess strain
- Insulgrip® Connectors: Twist-Lock industrial male Insulgrip plug rated for 20A 3-phase 480V AC with 3-pole 4-wire grounding
- Clear Wire Entry: Funnel shaped wire entry for ease of termination
- Impact-Resistant Nylon Housing: Black and white composite material for industrial environments
- Dust Shield Protection: Integral dust shield protects wiring chamber from contaminants
- Heavy Duty Construction: Rated for extra heavy duty industrial applications with 5 hp maximum
Technical Specifications
- Amperage Rating: 20A
- Voltage Rating: 480VAC
- Phase: 3-phase delta
- NEMA Configuration: L16-20P
- Poles/Wires: 3-pole, 4-wire with grounding
- Conductor Size: 12-10 AWG
- Terminal Type: Screw terminal
- Cord Range: 0.35″-1.15″ diameter
- Material: Nylon (black and white)
- Mounting: Cord mounted
- Operating Temperature: Maximum continuous 75°C, minimum -40°C without impact
- Dimensions: 2.33″ x 2.33″ x 2.75″
- Certifications: CSA C22.2 No.42, Fed.Spec. W-C-596, UL 498
- Application: Portable cord connectors
Typical Applications
The Hubbell HBL2431 is suited for industrial power distribution requiring secure, reliable 480VAC 3-phase connections, including:
- Portable power generation equipment and temporary job-site wiring
- Heavy industrial machinery and motor control circuits
- Emergency backup power distribution systems
- Construction site power distribution
- Industrial equipment commissioning and troubleshooting
Compatibility & Replacements
Compatible With
- NEMA L16-20R female receptacles and connectors
- 480VAC, 3-phase power distribution panels and circuits
- Industrial control equipment rated for L16-20P connectors
- Portable temporary power systems and extension cords
- Flexible cord assemblies 12-10 AWG
Replaces / Drop-In Replacement For
- Direct replacement for existing Hubbell HBL2431 plugs
- HBL2433 is the counterpart model
- Other manufacturers’ NEMA L16-20P 20A 480VAC male plugs with identical pin configuration
Works With
- Hubbell Twist-Lock® female receptacles (NEMA L16-20R)
- Standard 480VAC 3-phase industrial wiring and distribution systems
- Portable power cord assemblies and temporary power distribution
- UL 498 and CSA C22.2 No.42 certified electrical systems
- Industrial equipment requiring NEMA-rated connectors
