Description

The ABB CA5-10 is a side-mount auxiliary contact block supplying one normally open (N.O.) contact for use with ABB A-Line contactors in the A145 to A300 range. Rated at 10 A / 690 V AC and built to IEC 60947-5-1, this accessory block attaches securely to the side of compatible large contactors using a simple snap-on mounting system that requires no tools. It is designed to provide additional N.O. contact outputs for applications requiring run indication, interlock signalling, PLC feedback inputs, or remote monitoring of contactor status in large motor control installations.

The N.O. contact of the CA5-10 closes when the contactor coil is energised, providing a reliable run indication or enabling logic signal for downstream control functions. Its screw terminal connections are rated for both flexible and solid conductor types and are designed to maintain secure electrical connection over the extended service life expected of large industrial motor control equipment. The compact housing profile ensures that the addition of auxiliary contact blocks does not significantly increase the footprint of the contactor assembly within the control panel.

The CA5-10 is an important accessory within the ABB motor control ecosystem, supporting the design of complex motor starter circuits for large industrial drives in sectors including water and wastewater, oil and gas, marine, heavy industry, and infrastructure projects. It pairs directly with CA5-01 N.C. blocks to deliver a tailored combination of N.O. and N.C. auxiliary contacts matched to the specific requirements of the control circuit. Its compatibility with the A145–A300 contactor range ensures reliable performance and full system co-ordination in high-power motor control applications.