Overview
The Hubbell 2-Pole 3-Wire Twist-Lock Receptacle is an industrial-grade electrical connector designed for demanding applications requiring secure, reliable 250V power distribution. This receptacle provides a twist-lock mechanism that ensures positive engagement, preventing accidental disconnection in critical industrial environments. With its 20A 250V rating and NEMA L6-20R configuration, this receptacle is engineered for permanent installation in factories, control rooms, and equipment installations where safety and durability are essential.
Key Features
- Twist-lock mechanism with visual lock/unlock alignment arrows for secure, positive engagement
- All-brass mounting and grounding system for superior corrosion resistance and lower resistance ground path
- Wire restraint recesses accommodate both back and side wiring, preventing terminal loosening
- Engineered thermoplastic (nylon) housing delivers impact and chemical resistance
- Color-coded face by voltage for easy device identification and proper mating
- Complies with UL 498 and Federal Specification W-C-596
Technical Specifications
Accepts #16 AWG to #8 AWG solid or stranded copper wire. Operating temperature range -40°C to +75°C. Flush mount configuration with 1.38-inch face outer diameter. All terminals identified per UL 498 standards. Material: nylon face with brass internal components. Certification: UL 94/498, CSA C22.2 No. 0.6.
Typical Applications
- Industrial machinery and motor control circuits
- Temporary and permanent power distribution installations
- Heavy-duty equipment requiring secure 250V connections
- Data centers and control rooms with critical power requirements
- Factory and manufacturing plant electrical systems
Compatibility & Replacements
Compatible With
- NEMA L6-20P male plugs (standard matching pair)
- Heavy-duty industrial 250V power circuits
- Equipment rated for L6-20R receptacle configurations
- Permanent wall and panel mounting installations
Replaces / Drop-In Replacement For
- Hubbell HBL2320 (standard industrial flush receptacle)
- Hubbell HBL2320M4 (nylon face variant)
Works With
- NEMA L6-20P twist-lock plugs
- Industrial 250V single-phase power systems
- Standard electrical installation practices (NEC 2008+)
- UL 498 compliant wiring equipment














