Abb CR123H055A Heater Element CR101 Overload Relay

Product Description

The ABB CR123H055A is a thermal heater element designed for use with CR101 overload relays. Heater elements like this one protect motor circuits by generating heat proportional to the current passing through the relay. When current exceeds the rated threshold, the accumulated heat trips the overload relay, disconnecting the load and preventing motor damage. This component is installed by licensed electricians and industrial maintenance technicians working on motor control circuits in commercial and industrial settings. The CR123H055A measures 2.75 inches long by 2 inches wide by 2 inches tall and weighs 0.27 pounds.

This heater element is used in motor control applications where thermal overload protection is required. It installs directly into the CR101 overload relay as a replacement or service part. Typical applications include three-phase and single-phase motor starters in commercial HVAC equipment, pumps, compressors, and other motor-driven loads. The element is selected based on the full-load ampere rating of the protected motor, so correct sizing is critical before installation.

Key Features

• Thermal heater element sized for use with CR101 overload relays
• Provides current-proportional heating to trigger overload trip protection
• Compact form factor: 2.75 x 2 x 2 inches for direct relay insertion
• Lightweight at 0.27 pounds for easy handling during service
• OEM-style replacement to restore original overload protection performance

Compatibility

Designed as a direct replacement heater element for the ABB CR101 overload relay series.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC requirements. Always de-energize and lock out the motor control panel before removing or inserting heater elements. Select the heater element based on the motor full-load ampere rating as specified in the overload relay heater selection table. Do not install without confirming the current rating matches the protected motor to avoid nuisance tripping or inadequate protection.

Technical Specifications

• Dimensions (L x W x H): 2.75 x 2 x 2 inches
• Weight: 0.27 pounds
• UPC: 78316630948

Standard Information

• Brand: ABB
• Manufacturer Part Number: CR123H055A