WEV-40.5

Indoor High-Voltage Vacuum
Circuit Breaker

• Integrated design. The special spring operating mechanism is stable and reliable without additional adjustment

• High insulation performance, dust-proof and keep foreign matter from entering the main conductive circuit

• Compact structure

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Technical Parameters

Item	Unit	Data
Rated Voltage	kV	40.5
1 min power frequency withstand voltage	kV	95
Lighting impulse withstand voltage(peak)	kV	185
Rated current	A	1250 1600 2500
Rated short-circuit breaking current	kA	31.5 31.5 31.5
Rated short-circuit making current (peak)	kV	80
Rated switching capacitor inrush current	kV	12.5
Rated operating sequence		O-0.3s-CO-180s-CO
Permissible wearing accumulated depth for movable and fixed contact	mm	3
Closing time, Opening time	ms	≤90,≤50, ≤15
Mechanical endurance	Times	10000
Clearance between open contacts	mm	20±2
Contacting travel	mm	6±1
Center distance between phases	mm	300±1.5
Opening speed, Closing speed	m/s	1.7±0.2, 0.5~0.9
Bouncing time	ms	≤3
Three-phase opening and closing asynchronism	ms	≤2
Lengthdepthheight	mm	11949151695