Fixed-mounted molded case circuit breaker frame 1600; with RTC and 4AUX trip alarm switch S24; Icu "M" Icu=55kA @ 415V, 3-pole ETU350, LSI, In=1600A rotary coding switch Ir=640...1600A Isd=1...10xIn, Ii=1.5...15xIn N conductor protec. adjustable opt. w. ext. CT; up to 200% nut keeper kit No communication connection, no measurement function Manual operating mechanism of the spring energy store With mechanical calling without 2nd auxiliary release without 1st auxiliary release