Fixed-mounted molded case circuit breaker w. Handle frame 1600; 4AUX and trip alarm switch S24; Icu "M" Icu=55kA @ 415V, 3-pole ETU320, LI, In=1600A rotary coding switch Ir=640...1600A Ii=1.5...15 x In N conductor protec. Adjustable opt. W. Ext. CT; up to 200% nut keeper kit No communication connection, no measurement function Without additional alarm switch assembly With mechanical calling without 2nd auxiliary release without 1st auxiliary release