Leviton NEMA L5-15P Industrial...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$12.21
Leviton NEMA L5-15P Industrial Grade Locking Plug, 125V/15A

Leviton NEMA L5-15P Industrial Grade Locking Plug, 125V/15A

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Model: 4720-C

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

$12.21
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Leviton NEMA L5-15P Industrial Grade Locking Plug, 125V/15A

Leviton's NEMA L5-15P Industrial Grade Locking Plug is a 3-wire, 2-pole polarized locking plug engineered for dependable single-phase power connections. Rated 125-Volt, 15-Amp, 1-Phase, this Black/White locking plug provides a secure, twist-lock engagement that resists accidental disconnection in demanding commercial and industrial environments. Built to Leviton's Industrial Grade standards, it delivers consistent performance for equipment, tools, and portable power applications. The NEMA L5-15P blade configuration ensures compatible, code-conscious connections with standard locking receptacles.

Key Features

  • Locking Plug Configuration: NEMA L5-15P locking blade configuration provides secure, twist-lock engagement that resists accidental disconnection during use.
  • Electrical Rating: Rated 125-Volt, 15-Amp, 1-Phase, delivering reliable single-phase power for connected equipment.
  • 3-Wire, 2-Pole Design: 3-wire, 2-pole polarized configuration ensures correct orientation and safe, consistent grounding connections.
  • Industrial Grade Construction: Built to Leviton Industrial Grade standards for durability in demanding commercial and industrial environments.
  • Polarized Design: Polarized locking plug design prevents incorrect insertion, supporting safer connections.
  • Secure Twist-Lock Engagement: Locking mechanism helps maintain a stable connection where vibration or movement could otherwise cause disconnection.
  • Color: Black/White housing for easy visual identification on the job site.

Technical Specifications

  • list_batch: 377-VARMACHINE-20260803
  • Poles: 2

Typical Applications

  • Industrial and Commercial Power Distribution
  • Portable Power Cord and Equipment Connections
  • Temporary Power Setups and Job Site Wiring
  • Locking Plug and Connector Replacement
  • Renovation and New Construction Electrical Projects
  • Maintenance and Facility Electrical Upgrades

Why Leviton?

Leviton's Industrial Grade locking plugs are engineered for secure, reliable electrical connections in demanding commercial and industrial settings. The polarized, 3-wire, 2-pole locking design paired with a 125-Volt, 15-Amp, 1-Phase rating makes this plug a dependable choice for professional installations that require a stable, vibration-resistant connection. Shop Leviton electrical products at ZenSupply for consistent quality and dependable performance.

Manufacturer Resources

Product Specs

Poles:
2
Grade:
Industrial
Product Type:
Locking Plug
Connection Type:
Locking
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Plugs & Connectors

Leviton 4720-C – Frequently Asked Questions

1) Will a Leviton L5-15P locking plug mate with a standard L5-15 twist-lock receptacle?
Yes. The Leviton locking plug uses the NEMA L5-15P blade configuration, which is keyed to mate with NEMA L5-15 locking receptacles and nothing else. It is a 2-pole, 3-wire polarized device rated 125 volts, 15 amps, single phase, so the receptacle it twists into has to carry the same rating and pattern. A straight-blade 5-15 receptacle will not accept it.
2) Does the Leviton 2621 locking plug come in anything other than 15 amp?
Two amperage choices are offered: a 15 amp version, Leviton part 4720-C, and a 30 amp version, Leviton part 2621. Order by the part number, because the amp rating determines the blade pattern and therefore which receptacle the plug will twist into. Mixing a 30 amp plug onto a 15 amp circuit device is not a fit you can force.
3) Is there a straight L5-15P alternative to the Leviton 4720-C locking plug?
Yes. The Bryant 4722N is a locking plug in the L5-15P series rated 15A 125V, matching the NEMA L5-15P blade pattern of the Leviton 4720-C. The Bryant is built as an angle plug, so the cord exits at an angle to the body rather than straight back, which matters where the plug sits close to a wall or equipment panel.
4) My equipment cord is 250V, not 125V - what locking plug should I use instead of an L5-15P?
An L5-15P plug is configured for 125V, 15A service, so it will not mate with a 250V locking receptacle. For a 250V two-pole three-wire circuit, the Eaton L530P is an L6-30 series locking plug in a two-pole, three-wire nylon body. The L6-30 blade pattern is distinct from L5-15 and will only engage L6-30 receptacles.
5) Does the Leviton L5-15P locking plug work in a wet or dust-heavy location?
The Leviton NEMA L5-15P is an Industrial Grade locking plug with a Black/White thermoplastic housing intended for commercial and industrial power connections; it is not described as a sealed device. Where the connection is exposed to dust or washdown, the Pass and Seymour 267 Series is a rubber dust-tight locking plug in yellow, built specifically for that kind of environment.
6) Is an industrial grade locking plug worth it over a commercial grade one for shop equipment?
This Leviton plug is built to Industrial Grade, which is the tier above commercial and is what you want on cord-connected tools, portable power, and anything that gets plugged and unplugged daily or sits where vibration would work a straight blade loose. For a lighter duty 2-pole 3-wire locking application, the Eaton L6-30 locking plug is a commercial grade nylon device. Eaton's armored 7765 sits further up at extra heavy duty.
7) Why use a twist-lock plug instead of a standard straight-blade plug on job site power?
Twist-lock is about staying connected. The Leviton L5-15P engages with a quarter turn so the cord cannot be pulled or vibrated out of the receptacle, which is the failure mode on temporary power, portable equipment, and anything running off a cord reel. A straight-blade plug gives you none of that retention. The tradeoff is that both ends of the connection have to be locking devices, so the receptacle or connector has to match.
8) Is the Leviton L5-15P plug 2-pole 3-wire grounding, and does the neutral matter?
It is a 2-pole, 3-wire device: hot, neutral, and equipment ground. The polarized blade layout means it only goes in one way, so hot and neutral land where they should and the ground pin makes up. That matters on 125 volt single-phase cord assemblies where reversed polarity on a tool or a piece of equipment is a real hazard.
9) What is the difference between this Leviton L5-15P plug and the Bryant 4722N?
Both are NEMA L5-15P locking plugs rated 15 amps at 125 volts, so they mate with the same receptacles. The Bryant 4722N is an angle body, which lets the cord exit to the side and sit closer to the wall or panel face. The Leviton is the straight industrial grade version. Pick the angle body where the cord would otherwise be kinked against equipment.
10) Can I use this locking plug outdoors or in a washdown area?
The Leviton L5-15P industrial grade plug is a general-purpose locking plug, not a sealed one. If the connection sits where water or dust gets at it, look instead at the Pass and Seymour 267 Series rubber dust-tight locking plug, which is built for that duty. Eaton's armored 7765 locking plug is the choice where the plug body takes physical abuse.
11) What is the difference between an Industrial Grade L5-15P plug and a heavy-duty specification grade locking plug?
The Leviton NEMA L5-15P carries a Grade of Industrial and is rated 125V, 15A, 1-phase, two-pole three-wire. The Eaton 7411-C Safety Grip locking plug is classified Heavy-Duty Specification Grade and is rated 20A at 120/208V, so it is a higher amperage device on a different voltage configuration - it is a step up in rating class, not a drop-in for a 15A 125V L5-15 cord cap.
12) Is a non-metallic locking plug the same thing as the Leviton Industrial Grade L5-15P?
They are not interchangeable by name alone. The Leviton NEMA L5-15P is an Industrial Grade two-pole, three-wire polarized locking plug rated 125V, 15A. The Bryant 71020NP is a 7 Series non-metallic locking plug - a different series and body construction. Match the NEMA configuration on the receptacle rather than the grade or housing material when you are replacing a cord cap.
13) What color is the Leviton L5-15P locking plug body?
Black and white housing. On a site with several cord sets running different voltages, that two-tone body is easy to pick out of a pile, and it is the same color scheme used on the Pass and Seymour Turnlok L8 plug, so color alone should not be your only check before plugging in.
How fast can I get the Leviton 4720-C 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 4720-C come with a warranty?
Absolutely. The Leviton 4720-C 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 4720-C?
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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