Cooper Wiring Devices L620P L6...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$37.01
Eaton safety grip locking plug, #16-12 AWG, 20A, Industrial, 250V, Back wiring, Black, white, Ultra grip, L6-20, Two-pole, Three-wire, Nylon

Cooper Wiring Devices L620P L6-20 Industrial Locking Plug, 20A 250V Two-Pole Three-Wire

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Model: L620P

In Stock (leaves warehouse same day if ordered before 3pm ET)

$37.01
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Cooper Wiring Devices L6-20 Industrial Locking Plug, 20A 250V Two-Pole Three-Wire

The Cooper Wiring Devices L6-20 Industrial Locking Plug delivers a reliable 20A, 250V connection for demanding industrial and commercial power applications. This two-pole, three-wire locking plug features a thermoplastic body with brass contacts and an Ultra Grip design for secure handling, plus a back wiring method for clean, professional installation. Built to commercial device grade with a severe duty locking connector rating, it's engineered for dependable performance across a -20 to 60 °C (-4 to 140 °F) operating range.

Key Features

  • 20A Current Rating: Handles substantial power loads for industrial equipment and machinery applications.
  • 250V Voltage Rating: Supports higher voltage requirements for commercial and industrial power distribution.
  • L6-20 NEMA Configuration: Standard locking configuration ensures compatibility with matching receptacles and reliable connection.
  • Brass Contacts: Provide excellent conductivity and corrosion resistance for long-term electrical performance.
  • Thermoplastic Construction: Durable face body and product material withstand industrial environments and temperature variations.
  • Ultra Grip Design: Enhanced grip features facilitate secure handling and connection in demanding work conditions.
  • Back Wiring Method: Professional wiring configuration allows for clean, secure electrical connections.
  • Operating Range: Rated for -20 to 60 °C (-4 to 140 °F) with a cord diameter of 0.25-0.69 in (6.4 mm-17.5 mm).

Technical Specifications

  • Number Of Wires: 3

Typical Applications

  • Industrial Manufacturing Equipment
  • Commercial Power Distribution
  • Heavy Duty Machinery Connections
  • Professional Workshop Applications
  • Temporary Power Distribution
  • Maintenance and Service Applications

Why Cooper Wiring Devices?

Cooper Wiring Devices industrial locking plugs deliver dependable performance through commercial device grade construction and a severe duty locking connector design. Thermoplastic construction paired with brass contacts ensures reliable operation across a wide -20 to 60 °C (-4 to 140 °F) temperature range, giving electrical contractors and industrial facilities the professional-grade connectivity they can count on for two-pole, three-wire 20A, 250V power connections.

Manufacturer Resources

Product Specs

Amperage Rating:
20A
Application:
Industrial
Contact Material:
Brass
Cord Diameter:
0.25-0.69 in (6.4 mm-17.5 mm)
Design Type:
Standard locking plug
Device Grade:
Commercial
Nema Configuration:
L6-20
Number Of Poles:
Two-pole
Number Of Wires:
3
Operating Temperature:
-20 to 60 °C (-4 to 140 °F)
Product Color:
Black
Product Details:
Locking plug
Product Material:
Thermoplastic
Special Features:
Severe duty locking connector
Voltage Rating:
250V
Wiring Method:
Back
Product Type:
Locking Plug
Product Group:
Wiring Devices
Department:
Electrical
Product Subgroup:
Plugs & Connectors
Face/body material:
Thermoplastic
Product Height:
3.75 in
Product Width:
4.25 in
Product Weight:
0.66 lb
Product Length:
6.75 in
Allowable Wire Size:
#16-12 AWG

Cooper Wiring Devices L620P – Frequently Asked Questions

1) What size cord will the L6-20 locking plug accept?
The cord grip takes an overall jacket diameter of 0.25 to 0.69 inches (6.4 mm to 17.5 mm). That covers most SO/SJO portable cord in the 14/3 to 12/3 range. If your cable is thinner than 1/4 inch the clamp won't grip it properly, and anything fatter than 0.69 inches won't close in the body.
2) Can I run a 30A load on the Cooper L620P?
No. The L620P is a 20A device at 250V. For a 30A 250V two-pole three-wire cord you need an L6-30 plug instead, which has a different blade pattern and will not fit an L6-20 receptacle. Match the plug rating to the branch circuit and the equipment nameplate.
3) How do the wires terminate on this Cooper twist-lock plug?
It's a back-wired plug: conductors land in the terminal cavities behind the face and are clamped down, rather than wrapping under side screws. Contacts are brass. You're landing three conductors, two hots and a ground.
4) Can I use this locking plug outdoors or in an unheated shop in winter?
The L620P is rated for service from -20 to 60 degrees C (-4 to 140 degrees F), so an unheated warehouse, shop, or seasonal outdoor temporary power drop is within range. The body and face are thermoplastic and it carries a severe duty locking connector rating. It is not a weatherproof enclosure on its own, so in wet locations it still needs a cover or boot suited to the application.
5) Should I use a twist-lock L6-20 plug or a straight-blade 6-20 for my 240V machine cord?
Use the locking plug where the connection can't be allowed to vibrate or get pulled loose: portable machinery, temporary power, service drops. Turning the L6-20 plug into the receptacle mechanically latches it. A straight-blade 6-20 simply pushes in and pulls out, which is fine for a fixed appliance in a clean, undisturbed location. The two are not interchangeable in either direction, so the receptacle on the wall decides which one you buy.
6) Is this plug rated for industrial machinery or is it a residential-grade device?
It's built as a commercial device grade twist-lock with a severe duty locking connector rating, intended for industrial use: manufacturing equipment, heavy machinery cords, temporary power, and maintenance service connections. Brass contacts and a thermoplastic housing handle repeated plug cycles in a plant environment.
7) What part number and color is Cooper's L6-20 industrial locking plug?
Cooper Wiring Devices catalog number L620P, a black thermoplastic L6-20 locking plug rated 20A 250V, two-pole three-wire, with the Ultra Grip body for handling.
How fast can I get the Cooper Wiring Devices L620P delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Cooper Wiring Devices L620P come with a warranty?
Absolutely. The Cooper Wiring Devices L620P is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Cooper Wiring Devices L620P?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Cooper Wiring Devices L620P from ZenSupply?
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