Overview
The Pass & Seymour L520-C is a professional-grade Turnlok locking connector meeting NEMA L5-20R specifications. Designed for industrial and commercial applications requiring a secure, twist-lock connection at 20 amperes and 125 volts AC, this receptacle combines robust construction with user-friendly installation features. The L520-C is ideal for power distribution systems, generator connections, and heavy-duty temporary power setups where accidental disconnection is a safety concern.
Key Features
- Locking Twist-Lock Design: Raised ribs provide non-slip gripping profile for turning to lock and unlock, preventing accidental cord pull-out.
- Double Dovetail Construction: Superior protection against cord pull-out forces ensures secure connection under stress.
- Brass Alloy Contacts: Industrial-strength brass plug blades and connector contacts resist heat rise and provide excellent conductivity.
- Durable Nylon Housing: Impact- and corrosion-resistant nylon 6/6 shell material rated for -40°C to +75°C operating range.
- Integral Cord Grommet: Flexible rubber cord grommet conforms to SO cord, protecting against oils, water, and chips entering the wiring chamber.
- Quick-Thread Assembly: Assembly screws and cord-grip screws come backed-out and ready-to-wire, reducing installation time.
Technical Specifications
- Amperage Rating: 20A
- Voltage Rating: 125 VAC
- NEMA Configuration: L5-20R (2-pole, 3-wire with grounding)
- Conductor Size: 4 AWG
- Cord Diameter Range: 0.385″ to 1.150″
- Shell Material: Nylon 6/6
- Contact Material: Brass Alloy
- Body Colors: Black back, white front
- Connection Type: Screw terminal
- Operating Temperature: -40°C to +75°C
- Dimensions: 2.2″ diameter × 3.33″ length
- Certifications: UL 498, CSA, Federal Specification WC-596
Typical Applications
The L520-C Turnlok connector is suited for:
- Temporary power distribution on job sites and in industrial facilities
- Generator power connections and backup power systems
- Heavy-duty equipment and machinery power feeds
- HVAC and portable heating/cooling unit connections
- Construction and manufacturing environments requiring secure locking power cords
- Any application where accidental cord disconnect presents a safety or operational risk
Compatibility & Replacements
Compatible With
- Any NEMA L5-20P plug or cable assembly rated for 20A, 125V
- Standard SO (soow) and SVT cord up to 1.15″ diameter
- Industrial power distribution systems using L5-20R receptacles
- Generator twist-lock power systems
- Portable equipment requiring secure twist-lock connections
Replaces / Drop-In Replacement For
- Pass & Seymour L520C (identical part)
- Legrand L520-C (OEM equivalent under Legrand ownership)
- Verify exact compatibility with your equipment before ordering
Works With
- All NEMA L5-20P twist-lock plugs
- Standard electrical cord assemblies (SO, SVT rated for 20A/125V)
- Industrial power cords with M16 or larger connectors
- Any equipment equipped with NEMA L5-20R receptacles
