ItemUnitParameterRated VoltagekV12Rated CurrentA630Rated Short-circuit Breaking CurrentkA6.312.520Rated Short-circuit Making Current (Peak)kA1631.550Rated Peak Withstand CurrentkA1631.550Rated Short-time Withstand CurrentkA6.312.520Rated Insulation Level1min Power Frequency
Withstand Voltage (Dry Test)kV42Lightning Impulse Withstand Voltage (Peak)kV75Rated Operating Sequence O-0.3s-C O-180s-COMechanical Lifetimes10000Rated Short-circuit Current Breaking Timestimes30Rated Closing Voltage of OperatorV110, 220Rated Opening Voltage of OperatorV110, 220Clearance Between Open Contactsmm11± 1Over travel of Contactsmm3Three-phase Opening/Closing Synchronizationms≤ 2Closing Bouncing Timems≤ 2Average Opening Speedm/s1.0± 0.2Average Closing Speedm/s0.7± 0.15Opening TimeHighest Operating Voltages0.015~0.05Lowest Operating Voltages0.03~0.06Closing Times0.025~0.05Main Loop Resistance of Each Phaseμ Ω≤ 120Total Thickness of Permissible Wear of Moving and Static Contactsmm3