VS1 Series Intelligent Vacuum Circuit Breaker High Performance Electrical Equipment

Vacuum circuit breaker utilizes vacuum interrupter technology, featuring high breaking capacity, long service life and maintenance-free operation, making it the most ideal protection and control device for medium voltage power systems .

Product Description:

ZN63A-12 (VS1) type indoor high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is used for indoor high voltage switch equipment of power system, as a protection and control unit of network equipment, industrial and mining enterprises power equipment, suitable for the place of frequent operation at rated working current or many times of breaking short-circuit current place.

Product Parameter (Specification)

ZN63A-12
Number	Items	Unit	Data
01	Rated voltage	kV	40.5
02	Rated current	A	630/1250
03	Rated frequency	Hz	50 or 60
04	Rated short circuit breaking current	kA	25/31.5
05	Rated peak withstand current	kA	63/80
06	short-time withstand current(4s)	kA	25/31.5
07	Rated short circuit breaking current (maximum)	kA	63/80
08	Mechanical life	Times	10000
09	Rated Short-circuit Breaking Current Breaking Times	Times	30
10	Power frequency withstand voltage (1min)：Phase to phase/earth	kV	80/95
11	Lightning impulse withstand voltage(Phase to phase/earth)	kV	185
12	Secondary Circuit AC Withstand Voltage (1min)	kV	2
13	Rated operating sequence		OC-0.1s-CO-3S-CO-6s-CO-60s restore
14	mechanism control voltage	V	AC/DC220
15	contact opening distance	mm	16±1
16	Exceed range(the compress length of contact sping)	mm	4±0.5
17	Average break speed	m/s	1.4~1.8
18	Average closing speed	m/s	0.4~0.8
19	The jump time of contact close break	ms	≤5
20	phase-to-phase center distance	mm	460±2
21	Different period of three-phase break and close break	ms	≤2
22	Resistance of each phase main loop	μΩ	<80
23	Opening time	ms	≤100
24	Closing time	ms	≤50

Product Features：

Excellent breaking performance – Vacuum interrupter ensures no reignition or current chopping
Extra-long service life – Up to 30,000 mechanical operations and 10,000 electrical operations
Intelligent monitoring – Optional condition monitoring module for real-time parameters tracking
Modular design – Easy installation and maintenance, compatible with variousswitchgears