1SBN010010R1001

ABB CA5-01 (1SBN010010R1001) is a single-pole Normally Closed auxiliary contact block designed for front mounting on compatible ABB contactors. It adds an extra 1NC control or signaling contact for functions such as electrical interlocking, contactor status feedback, PLC input, alarm circuits, MCC panels and industrial automation control. ABB’s current motor-control catalogue confirms that CA5-01 = 1NC, while the companion CA5-10 = 1NO.