Product DescriptionThe ABB CR123C526A is a heater element designed for use in thermal overload relays. Heater elements generate heat proportional to motor current, allowing the overload relays 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 FeaturesThermal heater element designed for motor overload protectionSized to trip at a specific current range for accurate motor protectionInstalls directly into compatible ABB thermal overload relay assembliesBimetal-actuated trip mechanism provides reliable response to sustained overcurrentSuitable for use in motor starters across HVAC, pump, and industrial control panelsCompatibilityDesigned as an OEM-style replacement heater element for use in ABB thermal overload relay assemblies requiring the CR123C526A heater size.Installation NotesInstallation 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 SpecificationsUPC: 78316630909Standard InformationBrand: ABBManufacturer Part Number: CR123C526A