Description

The ABB A110-30-00 is a heavy-duty 3-pole IEC contactor designed for motor control and power switching applications requiring high reliability and long electrical life. Rated for motor loads up to 55 kW at 400 V AC in AC-3 duty, this contactor is a core component of ABB’s A-Line contactor family, which is engineered to meet the demanding cycle requirements of industrial motor starter applications. The A110-30-00 configuration provides three main poles with no built-in auxiliary contacts, allowing the user to add side-mount CA4 or CA5 auxiliary contact blocks as required by the control circuit design.

Compliant with IEC 60947-4-1 and UL 508 standards, the A110-30-00 operates at up to 690 V AC with AC-3 motor switching ratings and is available with a wide range of control coil voltages, typically from 24 V to 690 V AC at 50/60 Hz, making it adaptable to virtually any control voltage system encountered in European and international industrial applications. The contactor features silver alloy main contacts designed for low contact resistance and extended service life, and its compact housing is optimised for space-efficient installation within control panels and motor control centres.

The A110-30-00 is suitable for use with ABB thermal overload relays from the TA-DU series, forming a complete motor starter package when combined with the appropriate overload device. It mounts directly onto standard DIN rails or onto 35 mm mounting rails and is compatible with CA4 side-mount auxiliary contact blocks for additional signalling contacts. Its robust construction makes it a reliable choice for pump drives, conveyor systems, compressors, HVAC fan motors, and other industrial motor applications requiring dependable electromechanical switching performance over extended service lives.