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trip unit - STR23SE AB400 - 4 poles 4dShow more characteristics
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Main range of productNS400...630 product or component typeTrip unit range compatibilityCompact NS400...630 device applicationDistribution poles description4P protected poles description4t3t + N/23t neutral positionLeft network typeAC network frequency50/60 Hz trip unit nameSTRAB trip unit technologyElectronic protection typefor overload protection (long time) for instantaneous short-circuit protection for short time short-circuit protection trip unit rating340 A at 70 °C360 A at 60 °C380 A at 50 °C400 A at 20 °C Complementary [Ue] rated operational voltage<= 525 V AC 50/60 Hz long time pick-up adjustment type IrAdjustable 48 settings [Ir] long time pick-up adjustment range0.25...0.63 x In long time delay adjustment typeFixed [tr] long-time delay adjustment range90…180 s at 1.5 x Ir3.2…5 s at 7.2 x Ir5…7.5 s at 6 x Ir short-time pick-up adjustment type IsdAdjustable 8 settings [Isd] short-time pick-up adjustment range2...10 x Ir short-time delay adjustment typeFixed [tsd] short-time delay adjustment range0.04…0.06 s instantaneous pick-up adjustment type IiFixed display typeLED Environment standardsIEC 60947-2 product certificationsLCIEASEFAKEMAASTA IP degree of protectionIP40 conforming to IEC 60529 pollution degree3 conforming to IEC 60947 ambient air temperature for operation-25…70 °C ambient air temperature for storage-50…85 °C Contractual warranty Warranty18 months
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