Abb CR123C184A Overload Heater Element

Product Description

The ABB CR123C184A is a heater element designed for use with thermal overload relays in motor control applications. Heater elements generate heat proportional to motor current, allowing the relay's bimetallic strip to trip and disconnect the circuit when an overload condition occurs. This protects motors and connected equipment from sustained overcurrent damage. The CR123C184A is sized to match a specific full-load amperage range and must be selected based on the motor's nameplate FLA and service factor. Installation is performed by licensed electricians or qualified motor control technicians.

Thermal overload heater elements like the CR123C184A are used in industrial and commercial motor control centers, combination starters, and standalone overload relay assemblies. Typical applications include three-phase motor branch circuits in HVAC equipment, pumps, compressors, and conveyor systems. The heater element fits within the overload relay housing and is replaced as part of routine maintenance or after a thermal trip event that has damaged the element.

Key Features

• Heater element sized for a specific FLA range for accurate overload protection
• Compatible with thermal overload relay assemblies in the CR123 series
• Bimetallic trip design provides time-delay response to overload current
• Direct replacement element for motor starter overload relay service

Compatibility

Designed as an OEM-style replacement heater element for thermal overload relays used in industrial and commercial motor control applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC requirements for motor branch circuit protection. De-energize and lock out the motor control center or starter panel before removing or installing heater elements. Verify the heater element FLA range matches the motor nameplate full-load amperage and service factor before installation. Do not substitute heater elements across incompatible relay series or amp ranges, as improper sizing will result in inadequate motor protection.

Technical Specifications

• UPC: 783166308837

Standard Information

• Brand: ABB
• Manufacturer Part Number: CR123C184A