withdrawable circuit breaker, with guide frame, IEC 60947-2, size 1, 4-pole, N pole on right, In=1600 A, breaking capacity E, up to 1000 V AC 50/60 Hz, Icc=85/50 kA at 690/1000 V, tripping unit ETU300 LSI optimized for standard applications, without display, basic protection LT, ST, INST, including protection of the N conductor (internal neutral point sensor available) trip alarm switch (1 x CO), connection at rear vertical, guide frame with shutter, without position signaling switch,