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 description3t + N/24t3t neutral positionLeft network typeAC network frequency50/60 Hz trip unit nameSTRAB trip unit technologyElectronic trip unit rating340 A 70 °C360 A 60 °C380 A 50 °C400 A 20 °C protection typeShort time short-circuit protectionOverload protection (long time)Instantaneous short-circuit protection 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 certificationsLCIEKEMAASEFAASTA 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 Warranty period18 months
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