Leviton Telcom 460MI9WLEVAC 60A Mechanical Interlock

Product Description

The LEVITON TELCOM 460MI9WLEVAC is a 60-amp mechanical interlock designed to prevent two circuit breakers or disconnect switches from being engaged simultaneously. Mechanical interlocks are a critical safety component in electrical panels and transfer switch installations, ensuring that a primary utility feed and a backup generator feed cannot be connected to a load at the same time. Licensed electricians install this device as part of code-compliant standby power setups in both residential and light commercial applications. The unit is sold individually and is appropriate for installations requiring physical lockout protection between adjacent breaker positions.

This mechanical interlock is suited for electrical panel applications where a generator input or alternate power source must be interlocked with a main utility breaker. It is commonly installed in residential load centers and light commercial distribution panels as part of a manual transfer arrangement. The interlock physically constrains breaker handle travel so that only one of the two interlocked breakers can be in the ON position at any given time, providing a straightforward and reliable transfer solution without the complexity of an automatic transfer switch.

Key Features

• 60-amp rated mechanical interlock for dual-breaker lockout applications
• Prevents simultaneous engagement of two circuit breakers or disconnect positions
• Sold as a single unit for individual panel installations
• Hardware accessory category suitable for generator interlock and transfer switch setups
• Physical interlock mechanism requires no external power or control wiring

Compatibility

Designed as an OEM-style mechanical interlock accessory for electrical panels and load centers requiring 60-amp dual-breaker lockout capability. Verify panel model compatibility before installation, as interlock fit is panel-specific.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements for generator interconnection and transfer equipment. De-energize the panel and verify zero voltage at all terminals before beginning installation. The interlock must be mounted per the manufacturer instructions to ensure proper breaker handle engagement and reliable lockout function. Do not modify the interlock mechanism or force breaker handles past the physical stop.