Cooper Wiring Devices L1520R I...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$43.66
Cooper Wiring Devices L1520R Industrial Locking Receptacle, Three-Pole 250V

Cooper Wiring Devices L1520R Industrial Locking Receptacle, Three-Pole 250V

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Model: L1530-R

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

$43.66
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Cooper Wiring Devices L1520R Industrial Locking Receptacle, Three-Pole 250V

The Cooper Wiring Devices L1520R Industrial Locking Receptacle is a heavy-duty three-pole, four-wire locking receptacle rated 250V, engineered for demanding industrial electrical installations. This single receptacle is available in 20A and 30A amperage ratings to match the load requirements of your specific circuit, giving installers flexibility across a range of industrial power distribution applications. Molded from durable glass-filled nylon and finished in black, the housing resists impact, heat, and everyday wear on the plant floor. Back-wired terminals accept #18-10 AWG conductors for secure, code-compliant terminations, and the locking connection design resists accidental disconnection in high-vibration or heavy-use environments where a standard receptacle would fail.

Key Features

  • Amperage Options: Available in 20A and 30A ratings to suit a range of industrial circuit loads.
  • Voltage Rating: 250V for industrial power distribution circuits.
  • Pole/Wire Configuration: Three-pole, four-wire design supports balanced industrial loads.
  • Durable Construction: Glass-filled nylon housing resists impact, heat, and wear for long service life.
  • Wiring Method: Back-wired terminals accept #18-10 AWG conductors for a secure termination.
  • Application: Purpose-built for industrial electrical environments.
  • Design Type: Single receptacle configuration for dedicated circuit connections.
  • Color: Black housing for easy visual identification on the panel or machine.

Technical Specifications

  • Material: Glass-filled nylon
  • Voltage Rating: 250V
  • Amperage Options: 20A, 30A
  • Number Of Poles: Three-pole
  • Wiring Method: Back
  • Allowable Wire Size: #18-10 AWG
  • Application: Industrial
  • Number Of Wires: Four-wire
  • Color: Black
  • Design Type: Single
  • Connection Type: Back Wired

Typical Applications

  • Industrial Power Distribution
  • Heavy-Duty Machinery and Equipment Connections
  • Commercial and Industrial Electrical Installations
  • Panelboard and Load Center Wiring
  • Renovation and New Construction Projects

Why Cooper Wiring Devices?

Cooper Wiring Devices builds the L1520R Industrial Locking Receptacle from glass-filled nylon for rugged, long-term durability, with a three-pole, four-wire, 250V configuration available in 20A and 30A ratings to suit demanding industrial applications. The back-wired terminal design and #18-10 AWG conductor range simplify installation while supporting secure, code-compliant electrical connections in professional settings where dependable locking receptacles are essential.

Manufacturer Resources

Product Specs

Voltage Rating:
250V
Number Of Poles:
Three-pole
Wiring Method:
Back
Allowable Wire Size:
#18-10 AWG
Application:
Industrial
Number Of Wires:
Four-wire
Design Type:
Single
Product Type:
Locking Receptacle
Connection Type:
Back Wired
Product Material:
Nylon
Product Color:
Black
Department:
Electrical
Product Group:
Wiring Devices
Configuration:
Single Receptacle
Amperage Rating:
20A - 30A
Product Subgroup:
Receptacles & Outlets

Cooper Wiring Devices L1530-R – Frequently Asked Questions

1) Do I order the 20 amp or the 30 amp version of this Cooper locking receptacle?
Match the receptacle to the plug on the equipment and to the branch circuit breaker. The 20 ampere version is the L1520-R and the 30 ampere version is the L1530-R. The blade patterns are not interchangeable, so a 30A cord cap will not seat in the 20A receptacle. Size the wire accordingly within the device's #18-10 AWG termination range.
2) Can I land #10 THHN on this Cooper 250V locking receptacle?
Yes. Terminations accept #18 through #10 AWG, so #10 is the largest conductor the device takes. That covers a 30A circuit run in #10 copper. If your design calls for #8 or larger, this device won't accept it and you need a higher amperage series.
3) My equipment runs on 277/480V three-phase - can I use the Cooper L1530-R?
No. The Cooper locking receptacle is rated 250V, so a 277/480V wye circuit is outside its rating. For that voltage the Leviton 2450 is the industrial grade device built for it - a four-pole, four-wire single locking receptacle rated 20A at 277/480V Y AC. Note the Leviton 2450 is four-pole where the Cooper is three-pole, which matches the additional phase conductor on a 480V wye feed.
4) What is the difference between the Cooper L1520-R locking receptacle and the Eaton L14-20 industrial locking receptacle?
They serve different NEMA configurations. The Cooper L1520-R is a three-pole, four-wire 250V device, which is a three-phase configuration used on industrial machine circuits. The Eaton L1420-R is an L14-20 device, which is the single-phase 125/250V four-wire pattern used for generator and split-phase loads. The plug bodies are keyed differently, so an L14-20 cord cap will not seat in the L1520-R. Both are black nylon industrial-style devices; the Eaton is listed at commercial grade.
5) Is the Cooper L1520-R back wired or side screw?
Back wired. Conductors land in the back terminals rather than wrapping under side screws, which speeds up terminations when you're building out a panel or machine feed.
6) Will this Cooper receptacle hold up on a factory floor with washdown and impacts?
The body is glass-filled nylon in black, which is the standard industrial-grade housing material for resisting impact, heat and solvents on machine and plant installations. The locking blade design keeps a cord from vibrating loose. For a comparable industrial-grade flush mount from another brand, the Leviton 2330 and 2420 are both listed industrial grade and called out as impact- and chemical-resistant.
7) The Cooper L1520-R is a flush device - what if my application needs a flanged receptacle on the machine housing?
The Cooper L1520-R is a single locking receptacle intended for back-wired flush installation in a box or panel. Where the device has to mount through a sheet metal machine enclosure or a portable power box, a flanged inlet-style body is the right form factor; the Bryant 71020ER is a 7 Series flanged locking receptacle built for that mounting. Confirm the NEMA configuration matches your cord cap before ordering, since the two are different device families.
8) We spec chemical-resistant devices in our wash-down areas - does the Cooper locking receptacle qualify, or is there a better option?
The Cooper L1520-R uses a glass-filled nylon body, which resists impact, heat and wear in industrial service. If your spec calls out chemical resistance explicitly, the Leviton 2330 and Leviton 2420 are industrial grade flush-mount locking receptacles described as impact- and chemical-resistant, which is the language most facility specs are looking for. Match the NEMA configuration to your cord caps, as those Leviton devices are different patterns from the Cooper three-pole 250V device.
How fast can I get the Cooper Wiring Devices L1530-R 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 L1530-R come with a warranty?
Absolutely. The Cooper Wiring Devices L1530-R 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 L1530-R?
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
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