Compact NS400N is a Schneider Electric 3 poles fixed circuit breaker. It is used for the protection of 1000 VAC electrical distribution circuits. The operational current is 400 A, the operational voltage is 1150 VAC 50/60 Hz and Icu is 10 kA at 1000 VAC. It embeds an electronic trip unit (STR23SP), which provides adjustable overload and short-circuit protections. There is an LED on the trip unit front face for the percent load indication. The dimensions are 480mm (width), 140mm (height) and 110mm (depth). This device complies with IEC 60947-2 standard.