Abb cr123c330b Overload Relay Heater Nema Size 2

Product Description

The ABB cr123c330b is a panel mounted overload relay heater element designed for use in motor control applications. Heater elements like this one protect motors from thermal overload by sensing excess current draw and triggering the relay to interrupt the circuit before damage occurs. This unit is sized for NEMA Size 2 starters, making it appropriate for mid-range motor control assemblies. Installation is performed by licensed electricians or motor control technicians in industrial and commercial panel environments.

This heater element is intended for use in NEMA Size 2 overload relay assemblies. It is suited for panel mounted configurations in commercial and industrial motor control centers, control panels, and combination starters where thermal overload protection is required. The CR123C product family is a well-established line of heater elements used in relay-based motor protection systems.

Key Features

• Panel mounted design for direct installation in NEMA Size 2 relay assemblies
• Thermal overload protection prevents motor damage from sustained overcurrent conditions
• Heater element construction provides reliable bimetal or solder-pot trip response
• Compatible with CR123C series overload relay configurations

Compatibility

Designed as a replacement heater element for NEMA Size 2 panel mounted overload relay assemblies of the CR123C series.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC. De-energize and lock out the panel before removing or installing heater elements. Verify that the heater element rating matches the full-load amperage of the motor being protected before reinstalling the relay assembly.