Fixed-mounted circuit breaker 3-pole, Size 1 In=1000 A up to 690 V, 50/60 Hz AC Icu=65 kA at 500 V with ready to close signaling switch with mechanical lockout device with tripped signaling switch with tripped indicators Connection top front bottom front, Single hole Overcurrent release AZN Version B Setting range 400...1000 A Motorized/manual operating mechanism with memory with electrical and mechanical activation Motor and electr. calling for 110...127 V AC, 110...125 V DC With 1st auxiliary release Undervoltage release "R", F3 110...127 V AC, 110...125 V DC instantaneous without 2nd auxiliary release Switch position-depending auxiliary current switches 2 NC+2 NO