NEMA L6-20P Twist Lock Plugs from 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 NEMA chart twist lock solutions that stop that waste. Our commercial-grade 20A, 250V locking plug options are built to hold 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.
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 specifications and durable construction you can rely 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.
- 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 clear rating marks simplify compliance checks.
| Spec | Value | Notes | Color |
|---|---|---|---|
| Current | 20A | Aligned with common 20 amp breakers | Black (some models use blue code) |
| Voltage Rating | 250V | Indoor use only | Black housing |
| Configuration | 2-Pole/3-Wire | Male connector with grounding | Black/Blue |
| Material | Nylon / Polycarbonate | High-impact, 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 ready to help match a product to your application.
Overview of NEMA L6-20P Twist Lock Plugs
A clear wiring plan helps technicians finish assemblies fast and without 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 uses a 2-pole/3-wire grounding configuration and is rated at 20 amp, 250v AC.
Cable range and fit: accepts 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. The ergonomic fluted body and radial grip ridge help make repetitive wiring quicker and more consistent.
| Spec | Value | Details |
|---|---|---|
| Configuration | Male locking plug | 2-Pole / 3-Wire grounding |
| Cable OD | 0.375″–1.156″ | Wide strain relief range |
| Conductor Range | 14–10 AWG | Suitable for 20 amp terminations |
| Listings & Use | cULus on select items | Indoor use on selected 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 details, our team can help match the correct 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. 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 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.
- 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 can help you match mating connectors, recommend strain relief hardware for your cord, and handle volume or one-off orders.
Conclusion
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.
Select high-impact nylon or polycarbonate bodies with solid brass blades backed by 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 opportunity to support your next order with helpful guidance and quick shipping.
