Complete Guide To The L6-20 Plug Wiring Diagram

NEMA L6-20P Twist Lock Plugs – Buy 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 solutions that stop that waste. Our commercial-grade 20A, 250V locking plug units are made to stand up to vibration and heavy use.

We make it easy to shop and compare product information. Each item shows pole and wire details, grounding requirements, and color indicators so you understand how it fits your devices.

With high-impact housings, solid brass blades, and UL/cUL listings, these units match real-world job site demands. Prices start near $12.80, and most stock 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 specifications and durable construction you can rely on. We display the key electrical package up front so installers can pair the device with the right breaker and wire size.

Key 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 plus a radial grip ridge provide confident insertion and removal, even when wearing gloves.
  • UL/cUL listings (Spec # WJ-9433, File # E237606) and clearly marked ratings for easy compliance checks.
Specification Rating Details Color
Current 20A Matches common 20 amp breakers Black (some models use blue code)
Voltage Rating 250V For indoor use only Black
Configuration 2-Pole/3-Wire Grounding male connector Black/Blue
Material Nylon / Polycarbonate High-impact and heat-resistant Black body

We build each product page with pole layout, wire ranges, and grounding guidance so you can spec the right item without guesswork. Our team is ready to help match a product to your application.

NEMA L6-20P Twist Lock Plugs

A clear wiring plan helps technicians finish assemblies fast and without rework.

Wiring and configuration details: male locking plug with grounding

We list the exact configuration so teams can prep conductors and tools before assembly. The male connector uses a 2-pole/3-wire grounding configuration and is rated at 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 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 walk you through wiring steps and cord selection so your order arrives ready for an efficient install. If you need more wiring information, our team will help you 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 move stock quickly from our Sanborn, NY warehouse so orders usually 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.

Friendly product expertise and support

Our product experts are available M–F, 8:00 a.m.–5:30 p.m. EST by phone or email to confirm specifications like amp rating, grounding needs, and cord OD ranges.

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

Wrap-Up

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 up to 0.375″–1.156″ and ergonomic grips help make assembly fast. Pricing starts near $12.80 and most orders ship in 1–2 days from our New York warehouse. We value the opportunity to support your next order through helpful guidance and quick shipping.