<p>The ABB MCCB XT7H is a 1600A frame, 3P (three-pole) circuit breaker with a fixed rating of 70kA. It has an In (rated current) of 1600A and I1 (adjustable overload range) of 640-1600A. The short-circuit interrupting capacity ranges from S-I2=960-16000A to I-I3=2400-24000A. This MCCB features a touch LSI trip unit with class 1 metering and front terminals.</p>