Overview
The Hubbell L620P is a professional-grade locking plug designed for industrial and commercial power distribution. This 2-pole, 3-wire NEMA L6-20P connector delivers reliable performance at 20A, 250V AC, making it ideal for temporary power systems, generator connections, and heavy-duty industrial equipment. Built with high-impact-resistant nylon construction and brass contacts, the L620P ensures secure, polarized connections while protecting terminations from strain and environmental contamination.
Key Features
- Twist-Lock Design: Secure twist-lock mechanism prevents accidental disconnection during operation
- High-Impact Nylon Housing: High-impact-resistant supertough nylon construction with ribbed design for superior grip and chemical resistance
- Brass Contacts: Brass contact for optimal signal conductivity
- Polarized 3-Wire Grounding: Full grounding capability for enhanced safety
- Screw Terminals: Captive assembly screws make installation easy with clear, funnel-shaped wire entry
- Cord Grip Protection: Superior cord grip design shields terminations from excess strain
- UL/CSA Certified: UL listed and CSA certified for commercial and industrial-grade reliability
Technical Specifications
- Voltage Rating: 250 Volts
- Current Rating: 20 Amps
- Configuration: 2-Pole, 3-Wire Grounding
- NEMA Rating: L6-20P
- Wire Size Accommodation: 18 – 8 AWG (some sources list 14-10 AWG or 16-8 AWG; confirm with your connector type)
- Dielectric Strength: 3500 Volts
- Operating Temperature Range: -40 to 60 deg C
- Housing Material: High-impact nylon (black/white)
- Contacts: Brass with nickel-plated steel strap
- Terminal Type: Screw terminal
- Flammability Rating: HB per UL94
- Certifications: UL 498, CSA 22.2, Federal Spec. W-C-596
Typical Applications
The Hubbell L620P is commonly used in:
- Temporary power distribution and mobile power systems
- Generator connections and backup power hook-ups
- Industrial equipment and machinery power circuits
- Construction site power management
- Data center and IT infrastructure power distribution
- Heavy-duty commercial HVAC and electrical systems
Compatibility & Replacements
Compatible With
- All standard NEMA L6-20P receptacles and connectors
- Industrial power distribution panels and outlets
- Generator extension cords and power cords rated for 20A 250V
- Commercial temporary power systems and spider boxes
- Heavy-duty power cables (16 AWG – 8 AWG)
Replaces / Drop-In Replacement For
- Hubbell L620PZ (variant with Triple Gripper cord grip)
- Generic NEMA L6-20P plugs rated 20A 250V
- Older or damaged L6-20P industrial locking plugs
Works With
- NEMA L6-20R female receptacles and connectors
- Industrial electrical distribution systems compliant with UL 498
- Federal Specification W-C-596 compliant power systems
- CSA-certified North American industrial power infrastructure
