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What is icu and ics in Acb and how many time icu or ics passes from breaker?

Answer Posted / Avnish Kumar Awasthi

ICU (Instantaneous Circuit Breaker Unit) and ICS (Interrupter Coil Starter) are components of an Air Circuit Breaker (ACB).nn- ICU is a device that detects the instantaneous current level in the circuit. If it exceeds a predetermined value, it operates a trip mechanism to open the circuit breaker.n- ICS is an electromagnetic device used to ignite the arc-quenching media (usually SF6 gas) when the circuit breaker needs to be opened or closed.nnThe ICU and ICS pass through the breaker every time the circuit is opened or closed.

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