Westinghouse AMTPM-B Variable Depth Handle Mechanism

The Westinghouse AMTPM-B Variable Depth Handle Mechanism is an external operating control designed for manual operation of industrial circuit breakers and switchgear assemblies within power distribution systems. It is commonly installed in electrical distribution panels, switchboards, motor control centers, and industrial power systems in commercial and heavy-duty facilities, enabling reliable external breaker handle operation and controlled access. Key details include Manufacturer Part Number AMTPM-B, Series AMT, Product Type Variable Depth Handle Mechanism, Function External Circuit Breaker Operation, Installation Type Panel and Switchgear Mounted Component, and System Compatibility with circuit breakers and switchgear systems for electrical distribution and control equipment. Common replacements include Eaton Variable Depth Handle Mechanism, Square D Rotary Handle Mechanism, and Siemens Circuit Breaker Handle Operator.