withdraw. non-aut. circuit-b. with guide frame 4-pole, size II, IEC In=1600A to 690V, AC50/60Hz Icu=100kA at 500V rear connection vertical without overcurrent release Motorized/manual operating mechanism with spring charging motor AC 50/60 Hz 208-240 V or 220-250 V DC Activation AC 50/60 Hz 230 V, 220 V DC With 1st auxiliary release Shunt release "F", F1 50/60 Hz 230 V AC/220 V DC, 100% on-load factor With 2nd auxiliary release "RC", F4 Undervoltage, Delay 0.2-3.2s 208-240 V AC, 220-250 V DC, 100% ED 2NO+2NC R21= Shutter 2-part can be locked with bracket lock