The Mersen A70QS40-4 is a 3-pole, 400 amp, non-fusible, compact, air circuit breaker. It comes with a mechanical trip indicator, easy access terminal lugs, a transparent cover and metal housing, and is designed to din rail mounting. It has IEC dimensions, is UL listed, and is suitable for sub distribution panels, machine tools, and other applications requiring a heavy duty circuit breaker. The breaker features a globally accepted configuration and is cURus listed. It has a voltage rating of 600V AC and a current rating of 400 amp. The A70QS40-4 breaker is also UL489 listed, CSA certified, and CE certified.