Overview
The Pass & Seymour L520-R is an industrial-grade Turnlok locking receptacle designed for secure, reliable power connections in commercial and industrial settings. Rated for 20 amp at 125V with 2-pole, 3-wire configuration, this receptacle delivers the durability and electrical performance critical to motion control, process machinery, and power distribution systems.
Key Features
- Compact, impact-resistant nylon face and body ultrasonically welded for unrivaled strength
- One-piece, high-grade brass contacts offer excellent conductivity and heat-rise resistance
- Single-piece, solid brass mounting strap is free of easily loosened rivets found on other brands
- Face color coding by voltage facilitates locating and mating of proper devices
- Clearly marked NEMA configuration, rating, and third-party listing on each unit’s face
- Side and external screw-pressure-plate back wire capability; accepts #14 – #10 AWG
Technical Specifications
| Voltage | 125 VAC |
| Amperage | 20 A |
| Horsepower Rating | 1 hp |
| Poles / Wires | 2 Pole, 3 Wires |
| NEMA Configuration | L5-20R |
| Conductor Size | 4 AWG |
| Grade | Industrial/Specification |
| Material | Nylon |
| Mounting Type | Flush |
| Operating Temperature Range | -40 to 75 deg C |
| Dimensions | 3.3 in Dia x 3.28 in H x 1.61 in W x 1.19 in D |
| Color | Black |
| Manufacturer | Pass & Seymour / Legrand |
Typical Applications
The L520-R is suitable for commercial and industrial applications, including:
- Industrial machinery power feeds and motor control circuits
- Portable power distribution and equipment power supplies
- Temporary construction and event power systems
- HVAC equipment and electrical installations
- Any application requiring a secure, locking 20A 125V connection
Compatibility & Replacements
Compatible With
- Turnlok locking plugs (L520-P and equivalent L5-20P configuration plugs)
- Standard 125V, 20A single-phase industrial power systems
- Portable generators rated 20A 125V output
- Equipment with L5-20P plug connections
- NEMA L5-20R compliant installations and circuits
Replaces / Drop-In Replacement For
- Pass & Seymour L520-R (all versions)
- Legrand L520-R Turnlok receptacles
- Direct replacement for prior Pass & Seymour L520-R units
Works With
- NEMA L5-20P locking plugs and connectors
- Industrial and commercial electrical wiring systems
- Portable equipment and generator hook-ups
- Standard screw-pressure plate wiring terminals










