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SM6-24 DM1A Manual 220Vac, CT class 0.5 ratio 25-50, T20, 1 CTB cubicleShow more characteristics
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Main range of productSM6 technology typeAir insulated switchgear cubicle device short nameDM1A product or component typeCircuit breaker isolationSingle isolation internal arc protection12.5 kA 1 s Rated frequency (fr)50 Hz Rated voltage (Ur)24 kV Rated normal current (Ir)630 A Complementary Primary current transformer25-50 A pole distance250 mm phase to phase230 mm phase to earth creepage distance470 mm input/output400 mm phase to earth inter contact distance380 mm bus rated current630 A type of operatorCSSpring return RI type push-button circuit breaker control circuit voltage (Uc)220 V AC opening coil mechanical interlockingType 50 accessory / separate part destinationT20 HMI protection typeCircuit breaker CB nameSF1 type 1 CB installationDisconnectable CB operating positionLeft-hand side (B1) CB poles description3P CB rated switching sequenceO - 3 min - CO - 3 min - COO - 0.3 sec - CO - 3 min - COO - 0.3 sec - CO - 15 sec - CO operating time< 50 ms opening< 65 ms tripping< 70 ms closing CB charging time15 s CB rated interrupted current50 A C2 cable charging: 400 A C2 single capacitor bank: 400 A C2 back to back capacitor bank: Environment standardsIEC 62271-200IEC 62271-100:2012GOST-R 52565:2006 ambient air temperature for operation-5…40 °C ambient air temperature for storage-40…70 °C IP degree of protectionIP3x vibration resistance0.5 gn horizontal0.4 gn vertical operating altitude<= 1000 m
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