Leviton 4770-PLC 15A 277V 2-Po...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,573.06
Leviton 4770-PLC 15A 277V 2-Pole 3-Wire Locking Plug, Industrial Grade, Pack of 100

Leviton 4770-PLC 15A 277V 2-Pole 3-Wire Locking Plug, Industrial Grade, Pack of 100

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Model: 4770-PLC

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

$3,573.06
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Leviton 4770-PLC 15A 277V 2-Pole 3-Wire Locking Plug

The Leviton 4770-PLC is a 15A, 277V, 2-pole 3-wire (2P3W) locking-style plug engineered to mate securely with corresponding Leviton locking receptacles for demanding commercial and industrial power connections. Its twist-lock configuration prevents accidental disconnection under vibration or cord tension, making it a dependable choice anywhere a positive, secure electrical connection is required. Rated for 15 amps at 277 volts, the 4770-PLC is built to deliver reliable performance in the specific 2P3W circuit configuration it is designed for.

Key Features

  • Locking Configuration: 2-pole, 3-wire (2P3W) locking plug design ensures a secure, twist-lock connection that resists accidental disconnects.
  • Electrical Rating: Rated 15A at 277V, matched to the specific circuit requirements of compatible Leviton 2P3W locking devices.
  • Secure Cord Connection: Twist-and-lock engagement helps maintain a reliable connection in equipment and installations subject to movement or strain.
  • Leviton Build Quality: Manufactured by Leviton, a recognized supplier of wiring devices for commercial and industrial electrical applications.
  • Compatible Design: Designed to pair with corresponding Leviton 4770 series locking receptacles and connectors for a complete, matched locking system.

Technical Specifications

  • Amperage Rating: 15A
  • Voltage Rating: 277V
  • Configuration: 2-Pole, 3-Wire (2P3W)
  • Product Type: Locking Plug
  • Brand: Leviton

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Portable Cord and Plug Sets
  • Equipment Requiring Secure Locking Power Connections
  • Facility and Plant Maintenance Wiring

Why Leviton?

Leviton wiring devices are engineered to deliver dependable, code-compliant performance for professional electrical work. The 4770-PLC's locking design and matched 15A, 277V 2P3W rating make it a solid choice for installations where connection security and consistent power delivery matter most.

Manufacturer Resources

Product Specs

list_batch:
LEV-20260924
Product Type:
Locking Plug
Voltage Rating:
277V
Amperage Rating:
15A
Configuration:
2-Pole, 3-Wire
Department:
Electrical
Product Subgroup:
Plugs & Connectors
Pack size (unit):
100
Product Group:
Wiring Devices

Leviton 4770-PLC – Frequently Asked Questions

1) Will a Leviton 4770-PLC locking plug work on a 120V circuit?
No. The 4770-PLC is rated 15A at 277V in a 2-pole, 3-wire configuration, which is a single-phase 277V line-to-neutral circuit typical of commercial lighting feeds. It won't mate with 125V locking devices. For a 15A 125V twist-lock cord end, the Bryant 4722N angle locking plug is an L5-15P device.
2) What receptacle does the Leviton 4770-PLC plug into?
It mates with the corresponding Leviton 4770 series locking receptacles and connectors rated for the same 15A, 277V 2-pole 3-wire pattern. Twist-lock patterns are keyed by amperage, voltage and pole/wire count, so a 277V 2P3W plug will only engage a matching 277V 2P3W device, not a 125V or 250V locking receptacle.
3) What locking plug should I use instead of the Leviton 4770-PLC if the circuit is 480V rather than 277V?
The Leviton 4770-PLC is rated 15A at 277V, so it is matched to a 277V circuit. For a 480V three-wire connection, the Pass & Seymour L720P Turnlok is a NEMA L8 locking plug rated 3-wire 480V. Confirm the receptacle configuration in the opening matches the plug before ordering either one.
4) Is there another two-pole three-wire locking plug comparable to the Leviton 4770-PLC?
Yes. The Leviton 4770-PLC is a 2-pole, 3-wire locking plug rated 15A 277V. The Eaton L6-30 locking plug is also a two-pole three-wire locking plug, built in nylon and listed as commercial grade in the L6-30 series. The two carry different NEMA configurations, so match the plug to the receptacle already installed.
5) How many plugs come in the Leviton 4770-PLC pack?
The 4770-PLC is supplied as a pack of 100 plugs, so it is sized for an electrical contractor or facility stockroom doing a run of cord sets or a lighting retrofit, not for buying one or two.
6) Is a 277V locking plug the right choice for commercial lighting cord sets?
Yes, that's the usual application. 277V is the line-to-neutral voltage off a 480/277V wye service used widely for commercial and industrial lighting, and the 4770-PLC's 2-pole 3-wire pattern gives hot, neutral and ground at 15A. The twist-lock engagement keeps the connection made where cords see vibration or pull.
7) Is the Leviton 4770-PLC enough plug for a wet or abusive industrial location?
It is an industrial-grade general purpose locking plug, with no dust-tight or armored construction claimed. If the cord end lives in washdown, dust or heavy mechanical abuse, step up to something built for it: the Pass & Seymour 2675 (267 Series rubber dust-tight 20A locking plug) or the Eaton 7765 extra heavy duty armored locking plug.
8) Can I use a 15A locking plug on a 20A branch circuit load?
No. The 4770-PLC is rated 15A, and the plug must match the load and the receptacle it mates with. For a 20A twist-lock, look at a 20A device such as the Eaton 7411-C (20A, 120/208V heavy-duty specification grade) or the Eaton L530P for the L6-30 two-pole three-wire pattern at 30A.
9) Will a 20A locking plug like the Eaton 7411-C work in place of the Leviton 4770-PLC?
No. The Leviton 4770-PLC is a 15A, 277V device, while the Eaton Safety Grip 7411-C is rated 20A at 120/208V and built to heavy-duty specification grade. Different amperage and voltage means a different NEMA configuration and a blade pattern that will not engage the same receptacle.
10) My application is wet or dusty. Is the Leviton 4770-PLC the right locking plug, or is there a sealed option?
The Leviton 4770-PLC is an industrial grade 15A 277V locking plug intended for commercial and industrial power connections, portable cord sets, and plant maintenance wiring. Where the connection is exposed to dust, the Pass & Seymour 2675-2675 is a 20A rubber dust-tight locking plug from the 267 Series. It is a 20A device, so verify the receptacle rating before substituting.
11) What locking plug handles higher current than the Leviton 4770-PLC for heavy equipment feeds?
The Leviton 4770-PLC tops out at 15A, 277V. For a much larger feed, the Eaton 7765 is an industrial armored locking plug rated 50A at 600V AC / 250V DC with back-wiring terminals and an extra heavy duty build. That is a different class of device and requires a matching 50A receptacle.
12) What is the exact part number and configuration of this Leviton 277V locking plug?
Leviton model 4770-PLC: a 15A, 277V, 2-pole 3-wire locking plug. The 2P3W count means two current-carrying poles plus an equipment ground, so you terminate hot, neutral and ground at the cord.
13) Is a non-metallic locking plug such as the Bryant 71020NP interchangeable with the Leviton 4770-PLC?
They are not interchangeable on rating alone. The Leviton 4770-PLC is a 2-pole, 3-wire locking plug rated 15A 277V. The Bryant 71020NP is a 7 Series non-metallic locking plug, a different housing construction and configuration family. Match the plug's NEMA configuration to the receptacle in the opening rather than substituting by body material.
How fast can I get the Leviton 4770-PLC 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 Leviton 4770-PLC come with a warranty?
Absolutely. The Leviton 4770-PLC 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 Leviton 4770-PLC?
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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