ZW37-40.5 Outdoor AC High Voltage Vacuum Circuit BreakerDetailed product description：

1. The vacuum arc extinguishing chamber adopts patented sealing technology, with small volume, long service life, high reliability, good weather resistance, and easy transportation;
2. The operating mechanism adopts a miniaturized and highly reliable spring operating mechanism, with a simple structure and a mechanical life of up to 20000 times;
3. Adopting vacuum arc extinguishing, solid insulation, small size, light weight, high parameters, high performance, large breaking capacity, and high insulation level;
4. The design structure is reasonable, safe and reliable, and easy to debug and maintain;
5. It can be equipped with internal and external current transformers for measurement and protection, and external voltage transformers that can be flexibly equipped with remote control auxiliary contacts to meet the requirements of distribution automation

ZW37-40.5 Outdoor AC High Voltage Vacuum Circuit Breaker

serial number	name		unit	parameter
one	rated voltage		kV	forty point five
two	rated current		A	630，1250，1600，2000
three	Rated short-circuit breaking current		kA	twenty	twenty-five	thirty-one point five
four	Rated short-circuit closing current (peak)		kA	fifty	sixty-three	eighty
five	Rated short-time withstand current		kA	twenty	twenty-five	thirty-one point five
six	Rated peak withstand current		kA	fifty	sixty-three	eighty
seven	Rated short-circuit duration		S	four
eight	Rated insulation level	1-minute power frequency withstand voltage	kV	ninety-five
		Lightning impulse withstand voltage (peak value)		one hundred and eighty-five
nine	Rated operating sequence			Split -0.3s - Split -180s - Split - Split
ten	Rated short-circuit breaking current breaking times		time	twenty
eleven	Mechanical lifespan times		time	ten thousand
twelve	Rated operating voltage		V	220 (DC, AC)