Leviton Telcom 1K120-2SW 120V 200A Interlock Kit

Product Description

The LEVITON TELCOM 1K120-2SW is a single-pole, two-wire interlock kit rated for 120 volts and 200 amps. Interlock kits are used to mechanically or electrically prevent two circuits from being energized simultaneously, a common requirement in transfer switch applications and panel-level generator hookups. This hardware accessory is sold as an individual unit and is installed by licensed electricians working on residential or light commercial electrical panels. It provides a reliable mechanical safeguard that supports code-compliant generator connection setups.

This interlock kit is suited for use in single-pole, two-wire 120-volt branch circuit configurations where a physical interlock mechanism is required between two breaker positions. Typical applications include generator transfer interlock installations at the main service panel, where local electrical codes require a mechanical means of preventing simultaneous connection of utility and generator power. The 200-amp rating makes it appropriate for main breaker interlock applications in standard residential panels.

Key Features

• Rated for 120 volts and 200 amps for main breaker interlock use
• Single-pole, two-wire configuration for straightforward circuit integration
• Sold as a complete interlock kit with all required hardware components
• Classified as a hardware accessory for electrical panel applications

Compatibility

Designed as an OEM-style interlock kit for single-pole, two-wire 120-volt electrical panels requiring a 200-amp-rated mechanical interlock mechanism. No specific compatible panel model numbers were provided in the product data.

Installation Notes

Installation of this interlock kit must be performed by a licensed electrician in accordance with applicable NEC requirements. Before beginning work, shut off all power at the utility disconnect and verify the panel is de-energized with a non-contact voltage tester. Follow the panel manufacturer's instructions for interlock bracket placement and fastener engagement. Do not energize the panel until the interlock mechanism has been confirmed to operate correctly and prevent simultaneous breaker engagement.