withdrawable circuit breakers with guide frame and PSS 4-pole, frame size 0, IEC N conductor on the left In=800A to 690V, 50/60Hz AC Icu=42kA at 415V Icu=42kA at 500V ETU320 electronic trip units li rotary coding switch with tripped signaling switch, RTC and 4Aux auxiliary switches protection adjustable l: Ir 0.4-1 In i: ii 1-15 In w. var. n conductor protection rear horizontal connection no communication link, no metering funct. Manual operating mechanism of the spring energy store With mechanical closing Without 2nd auxiliary release Without 1st auxiliary release
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