Bryant 4770NP 5P7W A 277/480V ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$30.93
Bryant 4770NP 5P7W A 277/480V Plug, 15A-30A Motor FLA Rating

Bryant 4770NP 5P7W A 277/480V Plug, 15A-30A Motor FLA Rating

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Model: 4770NP

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

$30.93
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Bryant 4770NP 5P7W A 277/480V Plug, 15A-30A Motor FLA Rating

The Bryant 4770NP 5P7W A 277/480V Plug is engineered to provide a secure, dependable connection point for demanding three-phase electrical systems. Featuring a 5-pole, 7-wire (5P7W) configuration, this plug is built to handle the connection needs of 277/480V power circuits commonly found in industrial and commercial facilities. This page covers the 4770NP A-configuration plug across its available Motor FLA ratings of 15A, 20A, and 30A, so electricians can select the load rating that matches the connected equipment. As part of the Bryant line of professional-grade electrical wiring devices, this plug is designed to deliver consistent, accurately specified performance in environments where reliable power transfer is essential.

Key Features

  • Voltage Rating: Rated for 277/480V systems, supporting high-voltage three-phase power applications.
  • Pole/Wire Configuration: 5P7W (5-pole, 7-wire) design accommodates multi-circuit connections in demanding power setups.
  • Motor FLA Rating Range: Available in 15A, 20A, and 30A Motor FLA ratings, letting electricians match the plug to the connected motor or equipment's full-load amperage.
  • Configuration Designation: Identified as the A configuration variant within the 5P7W 277/480V product line for accurate matching to system requirements.
  • Model Number: Identified as model 4770NP for straightforward specification, ordering, and replacement.
  • Product Type: A dedicated electrical plug designed for connecting equipment and cordsets to compatible power supply circuits.
  • Professional-Grade Line: Part of the Bryant electrical wiring device portfolio, built for the demands of commercial and industrial-grade electrical work.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Industrial and Commercial Power Distribution
  • Three-Phase 277/480V Equipment Connections
  • Heavy-Duty Machinery and Equipment Wiring Matched to Motor FLA Rating
  • Temporary and Portable Power Setups
  • New Construction and Electrical Retrofit Projects

Why Bryant?

Bryant is a recognized name in professional electrical wiring devices, and the 4770NP 5P7W A 277/480V Plug reflects that standard with its dedicated 5-pole, 7-wire configuration built for 277/480V power systems and offered across a 15A-30A Motor FLA rating range to fit the job. For electricians and facility managers who need dependable, accurately specified connections, this Bryant plug provides a straightforward solution matched to demanding three-phase applications. Choosing Bryant means choosing a device built for the consistent, code-conscious performance that professional electrical work requires on every job site.

Product Specs

list_batch:
BRY-20260909
Product Type:
Plug
Voltage Rating:
277/480V
Configuration:
5P7W
Amperage Rating:
15A-30A
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Plugs & Connectors

Bryant 4770NP – Frequently Asked Questions

1) What do the 5P7W and 277/480V ratings on the Bryant 4770NP plug actually mean for my circuit?
5P7W means five poles and seven wires, so the plug carries three phases plus neutral plus an additional pole, with ground. It is rated 277/480V, which is the standard three-phase wye system in commercial and industrial buildings. Put simply, it belongs on a 480V three-phase four-wire-plus-ground feed, not on any 120/208V or single-phase cord.
2) Will the 4770NP mate with any 5P7W connector, or does the A configuration matter?
The configuration letter matters. The 4770NP is the A configuration within the 5P7W 277/480V line, and pin and sleeve style devices only mate with the same pole/wire count, voltage rating, and configuration designation. Check that the receptacle or connector on the other end of the cord carries the same 5P7W 277/480V A designation before you terminate anything.
3) Can a straight blade plug like the Leviton 275-E be used in place of the Bryant 4770NP?
No. The Bryant 4770NP is a 5-pole, 7-wire (5P7W) plug rated 277/480V for three-phase power. The Leviton 275-E is a 4-wire 3-pole straight blade angle plug in commercial grade, so it has a different pole and wire count and a different blade style entirely. The two will not intermate, and the 480V three-phase circuit the 4770NP serves requires the 5P7W device.
4) I need a plug for a 125V cord on a jobsite, not a 480V feeder. What should I order instead of the Bryant 4770NP?
Step down to a straight blade cord plug. The Eaton Arrow Hart AH5266 Ultra Grip straight blade plug is rated 15A 125V in industrial specification grade, and the Pass & Seymour PS5366-SSAN EHU angled straight blade plug is rated 20A 125V. The Bryant 4770NP is a 277/480V 5P7W device and is the wrong family for a single-phase 125V cord.
5) How do I pick between the 15A, 20A and 30A versions of this Bryant plug?
Go off the connected equipment's motor full-load amperage from the nameplate. The ratings offered are 15A, 20A and 30A, so choose the plug whose FLA rating covers that load: 4770NP for 15A, 520P7W for 20A, 530P7W for 30A. Oversizing the plug does not help, since the device on the other end of the cord has to match the same rating to mate.
6) I need a plug for a patient care area or a 120V receptacle, not 480V three-phase. What should I look at?
The Bryant 4770NP family is a 277/480V three-phase device and is the wrong tool for a 120V cord. For patient care spaces, the Leviton 8215-CAT is a tamper-resistant hospital-grade NEMA 5-15P and the 8315-CT is the hospital-grade NEMA 5-20P version, both sold in packs of 100. For general 125V cord repair, the Leviton commercial 4-wire 3-pole angle plug and the Pass & Seymour MaxGrip M3 nylon cord plug are cord-end options.
7) What is the difference between the Bryant 4770NP and the Leviton 5666-C for a 250V single-phase machine?
The Leviton 5666-C is a 3-wire 2-pole polarized industrial grade straight blade plug rated 250-Volt single-phase, which is the device for a 250V single-phase machine cord. The Bryant 4770NP is a 5-pole, 7-wire plug for 277/480V three-phase circuits and is offered in 15A, 20A and 30A Motor FLA ratings. Pole count, wire count and system voltage all differ, so the choice follows the machine's supply, not preference.
8) Is the Pass & Seymour MaxGrip M3 cord plug an alternative to the Bryant 4770NP for portable power?
They serve different circuits. The Pass & Seymour PS5965-Y is a MaxGrip M3 nylon cord plug in yellow, a cord-end device for portable cord sets. The Bryant 4770NP is a 5-pole, 7-wire plug for 277/480V three-phase service, sold in 15A, 20A and 30A Motor FLA ratings to match the connected motor. Use the 4770NP where the portable setup is fed from a 480V three-phase source and the MaxGrip cord plug where the cord is on a lower-voltage branch circuit.
9) Is the Bryant 5P7W 277/480V plug suitable for temporary or portable power on a jobsite?
Yes, temporary and portable power setups are among its intended uses, along with permanent industrial and commercial power distribution, heavy machinery and equipment wiring, and retrofit work. It is the cord-mounted plug end, so you pair it with a matching 5P7W 277/480V connector or receptacle to complete the circuit.
How fast can I get the Bryant 4770NP 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 Bryant 4770NP come with a warranty?
Absolutely. The Bryant 4770NP 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 Bryant 4770NP?
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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