Overview
The Pass & Seymour L520-C is a polarized Turnlok locking connector designed for industrial and commercial power distribution. This 20-amp, 125-volt connector features a 2-pole/3-wire configuration and meets NEMA L5-20R specifications. The L520-C delivers secure, twist-lock functionality with impact-resistant construction ideal for fixed or portable equipment installations.
Key Features
- Industrial-strength, brass alloy plug blades and connector contacts resist heat rise, provide excellent conductivity
- Raised ribs provide non-slip gripping profile for turning to lock and unlock
- Double dovetail design provides superior protection against cord pull-out forces
- Impact- and corrosion-resistant durable nylon 6 shell material
- New-design external cord grips provide visible assurance of safe and proper cord retention
- The polarized design ensures proper wiring and reduces the chances of electrical faults
Technical Specifications
Refer to the specifications table for detailed electrical and physical attributes. The connector accommodates 0.39 to 1.15 inch cord diameter and operates from -40 to 75 degrees Celsius. It is CSA Certified, meets Federal Specification WC596, UL 498, and carries UL94 V-2 Flammability Rating.
Typical Applications
The Pass & Seymour L520-C is commonly used in:
- Industrial machinery and equipment power connections
- Temporary power distribution on job sites
- Fixed facility wiring for 20-amp circuits
- Medical and portable equipment requiring secure power delivery
- Any application requiring NEMA L5-20R twist-lock connectivity
Compatibility & Replacements
Compatible With
- NEMA L5-20R receptacles and connectors
- Standard 125V AC, 20-ampere power sources
- SO cord and similar flexible power cables (0.39–1.15 in diameter)
- Industrial and commercial electrical systems rated for 20-amp service
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering if replacing legacy connector models.
Works With
- Pass & Seymour Legrand power distribution systems
- Standard 125V AC power circuits
- NEMA-rated electrical assemblies and cord sets
- Portable and fixed industrial power management infrastructure










