Leviton LITLK Manual Transfer ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$105.65
Leviton LITLK Manual Transfer Interlock Kit For Main Circuit Breakers

Leviton LITLK Manual Transfer Interlock Kit For Main Circuit Breakers

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Model: LITLK

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

$105.65
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Leviton LITLK Manual Transfer Interlock Kit for Main Circuit Breaker Panels

The Leviton LITLK Manual Transfer Interlock Kit is a mechanical safeguard engineered for main circuit breakers, giving electricians and facility owners a reliable way to add backup generator power to a panel. Built to fit Leviton main breaker panels, this interlock kit provides a manual switching mechanism that keeps utility power and generator power from being drawn on at the same time. It is intended for professional installation as part of a code-compliant backup power setup.

Key Features

  • Interlock Kit Design: The Leviton LITLK is a manual transfer interlock kit built specifically for main circuit breakers.
  • Panel Compatibility: Engineered to fit Leviton main circuit breaker panels for a secure, purpose-built installation.
  • Backfeed Prevention: Mechanically prevents the main utility breaker and a backup generator breaker from being switched on simultaneously.
  • Manual Transfer Operation: Requires a deliberate manual switching action between utility power and generator power, adding a layer of control during outages.
  • Professional Installation: Intended to be installed by a qualified, licensed electrician in accordance with local electrical code requirements.
  • Leviton Brand: Manufactured by Leviton, a recognized supplier of electrical distribution and panel accessories.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications, including panel model compatibility and breaker amperage requirements.

Typical Applications

  • Backup Generator Power Setups
  • Residential and Light Commercial Standby Power Systems
  • Main Breaker Panel Retrofits
  • Emergency Power Transfer Applications
  • Panelboard and Load Center Upgrades

Why Leviton?

Leviton is a well-known manufacturer of electrical wiring devices, panel accessories, and circuit protection components used by professionals across residential, commercial, and industrial projects. The LITLK Manual Transfer Interlock Kit reflects Leviton's focus on practical, purpose-built hardware that helps electricians deliver safer, code-conscious backup power installations for main circuit breaker panels.

Manufacturer Resources

Technical Information

Product Specs

Product Type:
Interlock Kit
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
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Leviton LITLK – Frequently Asked Questions

1) What does the Leviton LITLK interlock kit actually do in a generator hookup?
The LITLK is a mechanical interlock for a main circuit breaker panel. It physically prevents the main utility breaker and the generator backfeed breaker from being on at the same time, so the panel can only be fed from one source. To switch, you shut off one breaker before the interlock will let the other move, which is what keeps generator power off the utility lines during an outage.
2) Will the Leviton LITLK interlock fit a Square D, Eaton, or Siemens load center?
No. The LITLK is built specifically for Leviton main circuit breaker panels, not a universal interlock. Breaker interlocks are cut to a particular panel's deadfront and breaker layout, so a kit made for one manufacturer's load center will not line up on another's. If the panel on the job is another brand, you need that manufacturer's own interlock for that panel.
3) Does the Leviton LITLK come with the generator inlet breaker, or do I order that separately?
The LITLK is the interlock hardware only. A working standby install also needs the generator backfeed breaker sized to the generator, a power inlet box, and the feeder between them, all ordered separately. Confirm the breaker amperage and panel model against Leviton's technical documentation for the kit before you order the breaker, since the interlock has to suit the specific main breaker panel it is going on.
4) Is a breaker interlock kit like the Leviton LITLK a substitute for a transfer switch?
It does the same critical job of source isolation, by different means. The LITLK is a manual transfer interlock: you operate the breakers by hand and the interlock enforces that only one source is live. A transfer switch does the changeover through its own switching mechanism and can be automatic. The interlock route lets the generator feed any circuit already in the main panel rather than a fixed set of circuits on a separate subpanel, and it is intended to go in as part of a code-compliant backup power setup by a licensed electrician.
5) Do I need an electrician to install the Leviton LITLK, or can a property manager fit it?
This one goes to a licensed electrician. The kit mounts on a live main breaker panel and its whole function depends on being positioned correctly against the main and the generator breaker, and the install has to satisfy local electrical code for backup power. Leviton specifies qualified, licensed installation. For a property manager standardizing standby power across a building, spec it into the electrical scope rather than treating it as maintenance work.
6) How do I order the Leviton main breaker panel interlock, and is there more than one version?
There is a single version, ordered as Leviton part number LITLK. No handing, size, or finish choice to specify, and no separate variant per panel amperage. Distributors quoting it should use LITLK as the manufacturer part number.
How fast can I get the Leviton LITLK 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 LITLK come with a warranty?
Absolutely. The Leviton LITLK 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 LITLK?
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 LITLK from ZenSupply?
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