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BackHome > Products > Vacuum circuit breaker

Vacuum circuit breakerZW32-40.5/1600-25 Outdoor High Voltage Intelligent (permanent magnet) Vacuum Circuit Breaker

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ZW32-40.5/1600-25 outdoor high-voltage intelligent (permanent magnet) vacuum circuit breaker is mainly composed of integrated solid-sealed pole, current transformer, operating mechanism and cabinet. An isolating switch can be installed. This type of circuit breaker has a miniaturized design, and the shell is made of high-quality steel box. The current transformer can be selected according to user needs.

The device is mainly used in medium-voltage overhead line power grids for dividing and combining load current, overload current and short-circuit current.

Ambient air temperature: -30°C ~+60°C;

Altitude:≤ 3000 meters;

The wind speed:≤ 34m/s;

Vibration or ground movement from the outside of the switchgear cell system can be ignored;

Pollution level: Level IV;

Storage temperature -40°C ~+85°C.

Item	Unit	Specification
Rate voltage	kV	40.5
Rate current	A	1250/1600
Rate frequency	Hz	50 & 60
Power frequency withstand voltage (dry) (wet),ground/fracture	kV	80 95/95
Lightning impulse withstand current (peak) phase to phase,ground/fracture	kV	185
Rated short-circuit breaking current	kA	25/31.5
Rated short-circuit making current (peak)	kA	63/80
Rated peak withstand current	kA	63/80
Short-time withstand current,4S	kA	25/31.5
Rated operating cycle		O-0.1s -CO-3s -CO-6s CO-60s Recover
Rated short-circuit current breaking times	times	30
Mechanical life	times	10000
Mechanism control voltage	V	AC/DC220
Power frequency withstand voltage of secondary circuit (1min )	kV	2

Item	Unit	Specification
Contact stroke	mm	16±1
Contact over-travel	mm	4±0.5
Opening speed	m/s	1.4-1.8
Closing speed	m/s	0.4-0.8
Contact closing bouncing duration	ms	≤5
Center distance between phases	mm	460±2
Opening/Closing synchronism between poles	ms	≤2
Conductive loop resistance of each phase	μΩ	< 80
Closing time	ms	≤100
Opening time	ms	≤50
Weight	Kg	270

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