withdrawable circuit breaker, with guide frame, IEC 60947-2, size 1, 4-pole, N pole on right, In=2000 A up to 690 V AC 50/60 Hz, breaking capacity S Icu=66/50 kA at 500/690 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, top horizontal, bottom flange, guide frame with shutter and position signaling switch (3 x CO),