withdrawable circuit breaker, with guide frame, IEC 60947-2, size 1, 4-pole, N pole on right, In=1250 A up to 690 V AC 50/60 Hz, breaking capacity N Icc=55/42 kA at 500/690 V, tripping unit ETU300 LSI G optimized for standard applications, without display, basic protection LT, ST, INST, GF, including protection of the N conductor (internal neutral point sensor available), trip alarm switch (1 x CO), connection at rear, top horizontal, bottom vertical guide frame with shutter and position signaling switch (3x CO),