NEMA L6-20P Twist Lock Plugs – Buy at Installation Parts Supply
A single rugged 20 amp connection can keep a whole shift running. We’ve watched teams lose hours to power faults, so we focus on l6-20 receptacle solutions that prevent that lost time. 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. 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.
When you need help selecting the right component, our team is ready with friendly guidance so projects stay on schedule and installations meet code.

Commercial-Grade NEMA L6-20P Twist Lock Plugs – Features, Specs, and Benefits
Picking the right connector begins with clear specs and robust construction you can trust. We list the core electrical package up front so installers match the device to the correct 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 molded from high-impact, heat-resistant nylon or polycarbonate paired 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 clear rating marks simplify compliance checks.
| Specification | Rating | Details | Color |
|---|---|---|---|
| Current Rating | 20A | Matches common 20 amp breakers | Black (some models use 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 and heat-resistant | Black |
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 available to help match a 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 prepare 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
Every unit accepts a wide cord range to allow flexible installs. Typical conductor compatibility includes 14–10 AWG. An ergonomic fluted body and radial grip ridge help make repeated wiring tasks quicker and more consistent.
| Spec | Value | Notes |
|---|---|---|
| Connector Configuration | Male locking plug | 2-Pole / 3-Wire grounding |
| Cable OD | 0.375″–1.156″ | Robust strain relief range |
| Conductor | 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. If you need more wiring information, our team will help you 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. This quick turnaround helps you meet deadlines and cut costly downtime.
We provide shipping across the U.S. with consistent 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 customer support
You can reach our product experts M–F, 8:00 a.m.–5:30 p.m. EST by phone or email to verify specs like 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 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 combine verified performance data with friendly support to speed up 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 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.