Westinghouse 1D89108G04 Current Rating Module

The Westinghouse HTM-04 Current Rating Module (Part Number 1D89108G04) is an industrial current-sensing and protection device used in Westinghouse relay and motor protection systems. This solid-state, relay/control panel mounted module provides adjustable current rating and trip coordination for protective relay applications, enabling reliable current monitoring and overload protection in switchgear assemblies, motor control centers, and other protective relay configurations. As an OEM replacement component designed for industrial electrical protection systems, it supports relay coordination and overload monitoring in protective relay and motor protection applications; common replacements include Eaton Digitrip Rating Module, Cutler-Hammer MOR Current Module, and ABB Current Monitoring Relay Module.