Abb CR123C526A Overload Heater Element

Product Description

The ABB CR123C526A is a heater element designed for use in thermal overload relays. Heater elements generate heat proportional to motor current, allowing the overload relay's bimetal strip to trip the circuit when sustained overcurrent conditions occur. This part is installed inside a compatible overload relay assembly and serves as a key component in motor protection circuits. Licensed electricians and industrial maintenance technicians are the primary installers. The CR123C526A is sized to match a specific current range, ensuring accurate trip response that protects motors from damage caused by overload or single-phasing conditions.

Thermal overload heater elements like the CR123C526A are used in motor starter assemblies across residential, commercial, and light industrial applications. They are commonly found in HVAC equipment, pump panels, conveyor controls, and general-purpose motor control centers. The heater element is paired with a matching overload relay to form a complete motor protection circuit. Correct heater selection based on motor full-load amperage and service factor is essential for reliable operation.

Key Features

• Thermal heater element designed for motor overload protection
• Sized to trip at a specific current range for accurate motor protection
• Installs directly into compatible ABB thermal overload relay assemblies
• Bimetal-actuated trip mechanism provides reliable response to sustained overcurrent
• Suitable for use in motor starters across HVAC, pump, and industrial control panels

Compatibility

Designed as an OEM-style replacement heater element for use in ABB thermal overload relay assemblies requiring the CR123C526A heater size.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC guidelines. Disconnect and lock out all power to the motor control panel before removing or installing heater elements. Verify that the heater element current rating matches the motor full-load amperage and service factor before installation. Do not substitute heater elements with non-rated alternatives, as incorrect sizing will result in nuisance trips or failure to protect the motor.

Technical Specifications

• UPC: 78316630909

Standard Information

• Brand: ABB
• Manufacturer Part Number: CR123C526A