Overview
The Hubbell HBL2420SR is a surface-mount Twist-Lock® receptacle featuring a safety shroud design, rated for 20A, 3-phase Delta 250V AC. This NEMA L15-20R receptacle provides secure, locking power connection in industrial and heavy-duty applications where equipment safety and connection reliability are critical.
Key Features
- Safety Shroud Design: Safety shroud, surface mount configuration protects against accidental contact
- Locking Mechanism: Twist-Lock design prevents accidental disconnection during operation
- Corrosion Resistant: All-brass mounting and grounding system provides lower resistance ground path and greater resistance to corrosion than steel mounting systems
- Wire Restraint Recess: Wire restraint recess for both back and side wiring, greatly reduces the possibility of loosening terminal connection
- Color-Coded Voltage: Face color coding by voltage facilitates locating and mating of proper devices
- UL 498 Certified: Terminals identified in accordance with UL 498 standards
Technical Specifications
NEMA Designation: L15-20R, Amperage: 20 Amp, Voltage: 3-Phase/250V, Poles and Wires: 3 Pole, 4 Wire Grounding
- Terminal Accommodation: #16 AWG – #8 AWG solid or stranded copper wire only
- Operating Temperature: Maximum continuous 75°C and minimum -40°C without impact
- Dielectric Voltage: Withstands 2,000V minimum
- Flammability: V2 or better per UL94/CSA 22.2 No.0.17
- Moisture Resistance: IP20 Suitability
- Maximum Horsepower: 3
Typical Applications
The HBL2420SR is suited for:
- Industrial machinery and equipment power distribution
- Temporary power and generator installations
- Stage lighting and entertainment systems
- Heavy-duty construction and temporary job sites
- Manufacturing floor automation systems requiring 3-phase 250V service
- Data centers and backup power distribution
Compatibility & Replacements
Compatible With
- NEMA L15-20P male twist-lock plugs and connectors
- Standard 3-phase 250V electrical systems
- Industrial control and automation equipment requiring 20A service
- Back-wired and side-wired junction boxes and distribution panels
Replaces / Drop-In Replacement For
- Hubbell HBL2420 (standard flush receptacle without safety shroud)
- Direct replacement for equivalent L15-20R safety shroud receptacles from other manufacturers
Works With
- NEMA L15-20P plugs and power cord assemblies
- Three-phase electrical distribution systems rated 250V
- Screw-terminal wiring connections (back and side wired)
- Industrial control systems and machinery requiring secure locking connectors
