Leviton Lev-Lok MSTWL-A 3-Wire...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$7.07
Leviton Lev-Lok MSTWL-A 3-Wire 2-Pole Modular Wiring Device System, 125-Volt 20-Amp, White

Leviton Lev-Lok MSTWL-A 3-Wire 2-Pole Modular Wiring Device System, 125-Volt 20-Amp, White

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Model: MSTWL-A

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

$7.07
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Leviton Lev-Lok MSTWL-A 3-Wire 2-Pole Modular Wiring Device System, 125-Volt 20-Amp, White

The Leviton Lev-Lok MSTWL-A is a 3-Wire 2-Pole modular wiring device system rated 125-Volt 20-Amp, finished in White for clean integration into commercial and residential electrical layouts. Built on Leviton's Lev-Lok modular platform, this device system allows fast, tool-free assembly and field-configurable device combinations, reducing installation time compared to traditional hard-wired devices. The 125-Volt 20-Amp rating and 3-Wire 2-Pole configuration make it suited for standard branch-circuit wiring device applications where dependable, code-compliant performance is required. As part of the Leviton wiring device line, the MSTWL-A brings modular flexibility and consistent electrical performance to new construction, renovation, and device-replacement projects alike.

Key Features

  • Modular System Design: Leviton Lev-Lok modular architecture allows quick assembly and simplified device configuration compared to conventional wiring devices.
  • Electrical Rating: Rated 125-Volt 20-Amp for standard branch-circuit wiring device applications.
  • Wiring Configuration: 3-Wire 2-Pole configuration supports common device wiring schemes in commercial and residential circuits.
  • Finish: White finish for a clean, neutral appearance that matches standard device and wallplate color schemes.
  • Brand Reliability: Manufactured by Leviton, a long-established supplier of wiring devices and modular electrical systems.

Technical Specifications

  • List Batch: LEV-20260730

Typical Applications

  • Commercial and Residential Electrical Installations
  • Modular Wiring Device Panels and Assemblies
  • New Construction Wiring Device Rough-In and Trim-Out
  • Device Replacement and Retrofit Projects
  • Renovation and Remodel Electrical Upgrades

Why Leviton?

Leviton's Lev-Lok modular wiring device platform is engineered to simplify device installation while maintaining the dependable 125-Volt 20-Amp electrical performance professionals expect. Choosing the Leviton Lev-Lok MSTWL-A wiring device system gives electrical contractors and facility teams a flexible, White-finished modular option built for consistent, code-compliant results across commercial and residential projects. Leviton's reputation for wiring device quality makes it a dependable choice for both new installations and ongoing maintenance work.

Manufacturer Resources

Technical Information

Product Specs

Product Type:
Modular Wiring Device System
Product Color:
White
Amperage Rating:
20A
Voltage Rating:
125V
Poles:
2
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Shop All Leviton

Leviton MSTWL-A – Frequently Asked Questions

1) Is the Leviton Lev-Lok MSTWL-A rated for a 20 amp 125 volt branch circuit?
Yes. The Lev-Lok MSTWL-A is rated 125 volts, 20 amps, which puts it on standard 20A branch-circuit duty in commercial and residential work. It is a 2-pole, 3-wire device (hot, neutral, ground).
2) What does the Lev-Lok modular design change about installation compared to a standard wired device?
Lev-Lok splits the device from the wiring. The MSTWL-A assembles on the Lev-Lok modular platform without tools, so the wiring connection is made once and the device module mates to it, instead of landing conductors on screw terminals at each device. For a contractor that means the rough-in and the trim-out are separate steps, and a device swap later does not mean re-terminating wire.
3) Will the MSTWL-A match the white devices and wallplates already in my building?
The MSTWL-A is supplied in White, the standard neutral device color, so it lines up with white wallplates and the rest of a white device set on adjacent openings. Only the one white model is offered, so there is no color choice to specify when ordering.
4) What is the Leviton part number I should order for this white 20A Lev-Lok device?
Order it as Leviton MSTWL-A. That is the manufacturer part number and the only model configuration sold under it, so there is no suffix or finish code to add.
5) Can I use the Lev-Lok MSTWL-A on a retrofit, or is it only for new construction?
Both. It is used for new-construction rough-in and trim-out, and for device replacement and retrofit on renovation work. Bear in mind it is a Lev-Lok modular device, so it mates to the Lev-Lok platform rather than to conventional screw-terminal wiring, which is the detail to confirm before planning it into an existing box.
6) Is a 2-pole 3-wire device the right configuration for a standard 120V receptacle circuit?
Yes. Two poles with three wires means line and neutral switched or carried through plus an equipment ground, which is the normal arrangement on a 120V branch circuit; the 125V rating on the MSTWL-A is the standard nameplate figure for that circuit. If you are feeding a 208/240V or shared-neutral multiwire load, this is not the device configuration for it.
7) Where can I get the full technical data on the Leviton MSTWL-A for a submittal?
Leviton publishes technical information for the MSTWL-A as a PDF, hosted at https://zensupply.com/content/pdf/leviton/technical-information-cf00b3.pdf. That is the document to attach when a submittal or spec package asks for manufacturer data on the 125V 20A Lev-Lok device.
How fast can I get the Leviton MSTWL-A 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 MSTWL-A come with a warranty?
Absolutely. The Leviton MSTWL-A 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 MSTWL-A?
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 Leviton MSTWL-A from ZenSupply?
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