Abb CR123C356A Heater Overload Element

Product Description

The ABB CR123C356A is a heater overload element designed to protect motor control circuits from sustained overcurrent conditions. This thermal overload heater fits into compatible overload relay assemblies and generates calibrated heat proportional to current flow. When current exceeds the rated threshold, the bimetallic trip mechanism activates, interrupting the control circuit before motor windings sustain damage. Installation is typically performed by licensed electricians and industrial maintenance technicians working on motor starter and contactor assemblies. The unit weighs 0.02 pounds and measures 1.5 inches long by 0.5 inches wide by 1.25 inches tall, making it a compact, direct-fit replacement component.

Heater overload elements like the CR123C356A are used in residential, commercial, and light industrial motor control centers, across applications including HVAC compressor starters, pump motor starters, and conveyor drive assemblies. They are installed inside thermal overload relays mounted on contactor bases. Each pack contains one element, allowing technicians to replace individual heaters within a multi-pole relay assembly as needed rather than replacing the entire relay.

Key Features

• Thermal heater element sized for calibrated overcurrent trip response in compatible overload relays
• Compact form factor: 1.5 x 0.5 x 1.25 inches for direct-fit installation
• Lightweight construction at 0.02 pounds for easy handling in tight panel enclosures
• Sold individually, allowing single-element replacement without full relay swap
• Designed for use in motor starter and contactor protection circuits

Compatibility

Designed as an OEM-style replacement heater element for use with compatible ABB thermal overload relay assemblies. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC guidelines. De-energize and lock out the motor control panel before removing or installing any overload heater element. Verify the replacement heater element matches the amperage rating required for the connected motor load before installation. Do not energize the circuit until the relay assembly is fully reassembled and the enclosure is secured.

Technical Specifications

• Weight: 0.02 pounds
• Length: 1.5 inches
• Width: 0.5 inches
• Height: 1.25 inches
• Pack Quantity: 1
• UPC: 78316630897

Standard Information

• Brand: ABB
• Manufacturer Part Number: CR123C356A