Understanding Twist Lock Connectors With The NEMA Chart

Understanding Twist Lock Connectors With The NEMA Chart

NEMA L6-20P Twist Lock Plugs – Shop at Installation Parts Supply

One rugged 20 amp connection can keep an entire shift running. We see teams lose hours to power faults, so we focus on l6-20 plug wiring diagram solutions that stop that waste. Our commercial-grade 20A, 250V locking plug choices are designed to hold up under vibration and heavy use.

We make it simple to shop and compare product information. Every item includes pole and wire details, grounding needs, and color indicators so you can see how it fits your devices.

Thanks to high-impact housings, solid brass blades, and UL/cUL listings, these units are ready for real-world job site demands. Pricing begins near $12.80, and most inventory ships in 1–2 days from our New York warehouse.

If you need support picking the right component, our team offers friendly guidance so projects stay on schedule and installs meet code.

l6-20 plug wiring diagram

Commercial-Grade NEMA L6-20P Twist Lock Plugs: Features, Specs, and Benefits

Choosing the right connector starts with clear specs and durable construction you can count on. We show the core electrical package up front so installers can match the device to the proper breaker and wire size.

Key electrical ratings include: 20 amp, 250V AC, 2-pole/3-wire grounding configuration for safe, stable 250v service.

  • High-impact, heat-resistant nylon or polycarbonate bodies combined with solid brass blades for low resistance.
  • Ergonomic fluted body and radial grip ridge for confident insertion and withdrawal, even with gloves.
  • UL/cUL listings (Spec # WJ-9433, File # E237606) and clear rating marks simplify compliance checks.
Specification Value Details Color
Current 20A Aligned with common 20 amp breakers Black (some models blue code)
Voltage Rating 250V Indoor use only Black
Configuration 2-Pole/3-Wire Male connector with grounding Black/Blue
Material Nylon / Polycarbonate High-impact, heat-resistant Black

Every product page is curated with pole layout, wire ranges, and grounding guidance so you can specify the correct item without guessing. Our staff is ready to help you match each product to your application.

NEMA L6-20P Twist Lock Plug Overview

A clear wiring plan helps technicians complete assemblies quickly and avoid rework.

Wiring and configuration information – male locking plug with grounding

We list the exact configuration so teams can prep conductors and tools before assembly. This male connector is 2-pole/3-wire grounding and carries a rating of 20 amp, 250v AC.

Cable size range and fit – accommodates 0.375″-1.156″ OD cords

Each unit accepts a broad cord range for flexible installations. These plugs typically support conductors from 14–10 AWG. An ergonomic fluted body and radial grip ridge help make repeated wiring tasks quicker and more consistent.

Spec Rating Notes
Configuration Male locking plug 2-Pole / 3-Wire grounding
Cable OD 0.375″–1.156″ Wide strain relief range
Conductor Range 14–10 AWG Matches 20 amp terminations
Listings & Use cULus on select items Indoor use on selected models

At Installation Parts Supply, we guide you through wiring steps and cord selection so your order arrives ready for an efficient install. For more wiring information, our team will help match the right cord OD, wire gauge, and clamp hardware to your application.

Why Buy NEMA L6-20P Locking Plugs from Installation Parts Supply

Fast fulfillment and clear support save time on every job, especially when power is critical. We keep stock flowing from our Sanborn, NY warehouse so orders typically ship in 1–2 days. That quick turnaround helps you hit deadlines and avoid costly downtime.

We provide shipping across the U.S. with consistent transit times. Pricing commonly starts near $12.80 each, and specific items include cULus listings (Cord Connector 91GG) with Spec # WJ-9433 and File # E237606.

Friendly product expertise and support

Our product experts are available Monday–Friday, 8:00 a.m.–5:30 p.m. EST via phone or email to confirm specifications such as amp rating, grounding needs, and cord OD ranges.

  • Rugged construction featuring high-impact nylon or polycarbonate bodies plus solid brass blades for dependable 250v service.
  • Clear markings on every device support easy submittals and field ID, plus color indicators to avoid mismatches.
  • We assist with matching mating connectors, recommend strain relief hardware for your cord, and support both volume and single-unit orders.

Wrap-Up

We pair verified performance data with friendly support to speed your work. Our 20 amp, 250V AC, 2-pole/3-wire grounding options deliver clear wiring information and dependable locking engagement for mission-critical installs.

Choose from high-impact nylon or polycarbonate bodies with solid brass blades and published cULus/UL listings. Cord fit ranges up to 0.375″–1.156″ and ergonomic grips help make assembly fast. Prices start near $12.80, and most orders leave our New York warehouse in 1–2 days. We appreciate the opportunity to support your next order with helpful guidance and quick shipping.