Overview
The Hubbell HBL2316 is an industrial-grade twist-lock flanged receptacle designed for reliable 20A 125V circuits. This NEMA L5-20R outlet features Insulgrip thermoplastic construction with back-wired screw terminals, providing secure electrical connections in manufacturing, event production, and portable power distribution systems. The white nylon housing resists impact while the locking mechanism prevents accidental disconnection during operation.
Key Features
- Back-wired terminations — Accept #16 to #8 AWG solid or stranded copper wire for flexible installation
- Twist-lock design — NEMA L5-20R configuration prevents cord pull-out
- Impact-resistant thermoplastic — Natural white nylon casing withstands rough handling and UV exposure
- Multi-drive terminal screws — #10-32 brass screws with slotted, Phillips, and Robertson options for technician preference
- Flanged mount with screw holes — Secures flush to panels, enclosures, and equipment faces; mounting hardware included
- Industrial-rated durability — 1 hp motor rating; 2,000V dielectric withstand; certified current interrupting at full load
Technical Specifications
- Amperage: 20 Amps continuous
- Voltage: 125V AC
- NEMA Configuration: L5-20R (2-pole, 3-wire grounding)
- Conductor Size: #16 AWG to #8 AWG solid or stranded copper wire
- Operating Temperature Range: –40°C to +75°C maximum continuous
- Material: Nylon thermoplastic (natural white, impact resistant)
- Mounting Type: Surface or screw mount, flanged
- Dielectric Voltage Withstand: 2,000V minimum
- Horsepower Rating: 1 hp maximum
- Dimensions: 2.88 in × 2.88 in × 2.09 in (H × W × D)
- Weight: 0.25 lb
- Certifications: UL 498, CSA C22.2 No. 42, Fed. Spec. W-C-596
- UPC: 783585037806
Typical Applications
- Stage lighting and concert production (touring equipment power distribution)
- Construction site temporary power circuits
- Portable generator installations and fleet vehicles
- Industrial equipment and machinery control power
- RV, boat, and mobile equipment shore power receptacles
- Workshop and backup power panel installations
Compatibility & Replacements
Compatible With
- All NEMA L5-20P (2-pole 3-wire 20A 125V) twist-lock plugs and cords
- Standard North American 125V single-phase circuits and distribution systems
- Equipment rated for NEMA L5-20R receptacles
- Hubbell, Leviton, and other major manufacturer plug connectors with matching NEMA configuration
Replaces / Drop-In Replacement For
- Older or damaged Hubbell HBL2316 units
- Generic locking flanged receptacles rated NEMA L5-20R 20A 125V
- Note: Always verify your specific application’s electrical rating and panel mounting style before replacing existing outlets
Works With
- Twisted-lock plug connectors: Hubbell L5-20P, Leviton L5-20P, and all NEMA L5-20P standard plugs
- Power cords: Any UL-listed 12/3 AWG or larger cord terminated with NEMA L5-20P connector
- Electrical standards: UL 498 (standard for locking/grounding receptacles), CSA C22.2 No. 42
- Installation platforms: Portable generators, temporary power distribution boxes, permanent hardwired panels



