NEMA L6-20P Twist Lock Plugs from Installation Parts Supply
A single rugged 20 amp connection can keep a whole shift running. We see teams lose hours to power faults, so we focus on NEMA chart twist lock 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 easy to shop and compare product information. Each item lists pole and wire details, grounding requirements, and color indicators so you know 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 choosing 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
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.
Key electrical ratings include: 20 amp, 250V AC, 2-pole/3-wire grounding configuration for safe, stable 250v operation.
- High-impact, heat-resistant nylon or polycarbonate bodies combined with solid brass blades for low resistance.
- A fluted ergonomic body with a radial grip ridge supports confident insertion and withdrawal, even with gloves on.
- UL/cUL listings (Spec # WJ-9433, File # E237606) and clearly marked ratings for easy compliance checks.
| Specification | Value | Details | Color |
|---|---|---|---|
| Current | 20A | Aligned with common 20 amp breakers | Black (some models blue code) |
| Voltage | 250V | For indoor use only | Black housing |
| Electrical Configuration | 2-Pole/3-Wire | Grounding male connector | Black / Blue |
| Body 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 complete assemblies quickly and avoid rework.
Wiring and configuration information – male locking plug with grounding
We provide the exact configuration so teams can prep conductors and tools ahead of assembly. The male connector is 2-pole/3-wire grounding and rated at 20 amp, 250v AC.
Cable range and fit: accepts 0.375″-1.156″ OD cords
Each unit accepts a wide cord range for flexible installs. Typical conductor compatibility covers 14–10 AWG. An ergonomic fluted body and radial grip ridge help make repeated wiring tasks quicker and more consistent.
| Specification | Rating | Details |
|---|---|---|
| Configuration | Male locking plug | 2-Pole / 3-Wire with grounding |
| Cable Outside Diameter | 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. 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 across the U.S. with reliable 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.
Helpful 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 every device support easy submittals and field ID, plus color indicators to avoid mismatches.
- We can help you match mating connectors, recommend strain relief hardware for your cord, and handle volume or one-off orders.
Wrap-Up
We combine verified performance data with friendly support to speed up 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.
Select high-impact nylon or polycarbonate bodies with solid brass blades backed by published cULus/UL listings. Cord fit from 0.375″–1.156″ combined with ergonomic grips helps make assembly quick. Pricing starts near $12.80 and most orders ship in 1–2 days from our New York warehouse. We appreciate the opportunity to support your next order with helpful guidance and quick shipping.
