Contactor RTIe-5250 250A 400V/AC3

Electromagnetic contactors of KTIe series are intended for use in control circuits for start and stoppage of 3-phase squirrel-cage induction motors supplied from mains with rated voltage up to 660 V, and also can be used for switching on/off other electrical units: lighting, heating devices, various inductive loads. Used with fans, pumps, furnaces, beam cranes and automatic load transfer systems.High switching endurance. Low noise. Economical solution. Simplicity of design.Rated control supply voltage Us at AC 50HZ: 400 Rated control supply voltage Us at DC: - Rated operation current Ie , 400 V: 250 Connection type auxiliary circuit: EV008864 Number of auxiliary contacts as normally closed contact: 0 Number of auxiliary contacts as normally open contact: 1 Nominal operating AC voltage Ue: 230…400 Rated insulation voltage Ui: 1000 Rated surge voltage: 8 Conditional heat current Ith at AC-1: 315 Nominal powet at AC-3 230V: 75.0 Nominal powet at AC-3 400V: 132.0 Max short-term load: 1800 Conventional Short Circuit Current Inc: 10000 Overcurrent Protection - Fuse gG: 315 Dissipation power at Ie AC-3: 16 Dissipation power at Ie AC-1: 25 Tightening moment: 10 Double bus - each size: 25x4 Screw diameter metrical: 10 Control voltage ranges at actuation Uc: 0,85…1,1 Flexible cable without tip: 125…185 Control voltage ranges at release Uc: 0,35…0,55 Hard cable without tip: 125&hell