Complete Guide To The L6-20 Plug Wiring Diagram

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

One tough 20 amp connection can keep your 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 straightforward to shop and compare all the key product information. Each item lists pole and wire details, grounding requirements, and color indicators so you know 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. Prices start around $12.80, and most stock ships in 1–2 days from our New York warehouse.

When you need help selecting the right component, our team is ready with friendly guidance so projects stay on schedule and installations 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 display the key electrical package up front so installers can pair the device with the right breaker and wire size.

Core electrical ratings: 20 amp, 250V AC, 2-pole/3-wire grounding configuration that supports safe, stable 250v service.

  • Durable bodies in high-impact, heat-resistant nylon or polycarbonate 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 clearly marked ratings for easy compliance checks.
Specification Rating Details Color
Current Rating 20A Matches common 20 amp breakers Black (some models use blue code)
Voltage 250V Indoor use only Black housing
Configuration 2-Pole/3-Wire Male connector with grounding Black / Blue
Material Nylon / Polycarbonate High-impact and heat-resistant Black body

We curate each product page with pole layout, wire ranges, and grounding guidance so you can spec the right item without guesswork. 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 finish assemblies fast and without 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. Typical conductor compatibility covers 14–10 AWG. The ergonomic fluted body and radial grip ridge help make repetitive wiring faster and more consistent.

Specification Value Details
Connector Configuration Male locking plug 2-Pole / 3-Wire with 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 specific models

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

Reasons to 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. This quick turnaround helps you meet deadlines and cut costly downtime.

We ship throughout the U.S. with reliable transit times. Typical pricing begins around $12.80 each, and select items carry cULus listings (Cord Connector 91GG) with Spec # WJ-9433 and File # E237606.

Helpful 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.
  • Each device features clear markings for easy submittals and field identification, along with color indicators that help avoid mismatches.
  • We assist with matching mating connectors, recommend strain relief hardware for your cord, and support both volume and single-unit orders.

Conclusion

We bring together verified performance data and friendly support to help speed your work. These 20 amp, 250V AC, 2-pole/3-wire grounding options provide clear wiring details and dependable locking engagement for mission-critical installs.

Choose between high-impact nylon or polycarbonate bodies with solid brass blades and published cULus/UL listings. Cord fit ranges to 0.375″–1.156″ and ergonomic grips make assembly fast. Pricing begins near $12.80 and most orders ship within 1–2 days from our New York warehouse. We appreciate the chance to support your next order with helpful guidance and fast shipping.