The ABB E4.2S-A is a three-pole circuit breaker from ABB's EMAX 2 family, rated for 2500 A with a 2000 A trip unit. This E4.2S-A model provides overcurrent protection for high-current circuits, interrupting fault current at the 2000 A trip setting. The three-pole configuration supports multi-phase protection in large distribution panels and feeders.
