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The ABB CR123H188A is a thermal heater element designed for use with CR101 overload relays in motor control applications. This component provides overcurrent protection by responding to heat generated by excess current flow through the circuit. When current exceeds the rated threshold, the heater element trips the overload relay and interrupts the circuit to protect the connected motor or load. Licensed electricians and industrial maintenance technicians are the primary installers of this part in motor starter and control panel assemblies.
This heater element is suited for industrial and commercial electrical control systems where motor overload protection is required. It installs directly into a compatible CR101 overload relay block, which is typically mounted in a motor starter enclosure or control panel. It is commonly used in factory automation, HVAC equipment, pump stations, and other motor-driven systems requiring reliable overcurrent protection.
Designed as a direct-fit heater element replacement for use with ABB CR101 overload relays in motor control and starter applications.
Installation should be performed by a qualified electrician in accordance with NEC requirements. De-energize and lock out the motor control circuit and verify the absence of voltage before removing or installing heater elements. Confirm the heater element rating matches the full-load amperage of the connected motor before placing the system back into service.
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