The ABB MCCB XT1N is a 160 A frame, 3P fixed circuit breaker with a thermal magnetic (™ D) trip unit. It has front terminals and is capable of handling a short circuit current of up to 36 kA. The nominal current rating is 100 A, with adjustable overload settings ranging from 70 A to 100 A. Additionally, it has an I3 rating of 1000 A.