VS1(ZN63)-12/630-20KA Circuit Breaker

1. Advanced solid-insulated technology 2. A complete set of type tests 3. IEC standards 4. Excellent performance

Circuit breaker according to its range of application is divided into high voltage circuit breaker, and low voltage circuit breaker, high and low voltage line division is fuzzy, the 3 kv VS1(ZN63)-12/630-20KA Circuit Breaker of above call high-voltage electrical appliances. Low voltage circuit breaker is also called automatic switch, it is a kind of both the manual switch function, and can automatically loss of pressure, under voltage, overload, and short circuit protection appliances. It can be used to distribution power, not frequently start asynchronous motor, the power supply line and motor, to carry out protection, when they happen serious overload or short circuit VS1(ZN63)-12/630-20KA Circuit Breaker and under-voltage fault and can cut off the circuit automatically, its function is equivalent to fuse switch and owe thermal relay etc combination. And in breaking fault current after generally do not need to change parts, has gained a wide range of application.

                             The main parameters of VS1(ZN63)-12/630-20KA Circuit Breaker

	No.	Items		Unit	Data
	1	Rated Voltage		KV	12
	2	Maximum working voltage		KV	12
	3	Rated current		A	630 1250	630 1250	630 1250
	4	Rated short open circuit current		KA	20	25	31.5
	5	Rated short circuit close current		KA	50	63	80
	6	Rated front value tolerance current		KA	50	63	80
	7	4 s rated short circuit resistance current		KA	20	25	31.5
	8	Rated insulation level	Power frequency withstand voltage (rated before and after breaking)	KV	42(fracture18)
			Impact pressure (rated before and after breaking)		75(fracture84)
	9	Rated operating sequence			open-0.3S-close/open-180S-close/open
	10	Mechanical life		time	10000
	11	Rated short open circuit current switching frequency		time	50
	12	Operation mechanism rated switching voltage (dc)		V	110,220
	13	Operation mechanism rated points gate voltage (dc)		V	110,220
	14	Contact open distance		mm	11±1
	15	Super stroke (contact spring compression length)		mm	3.5±0.5
	16	Three-phase points switching		ms	≤2
	17	Contact switching bounce time		ms	≤2
	18	Average brake speed		m/s	0.9~1.2
	19	Average closing speed		m/s	0.5~0.8
	20	Points brake	The highest operating voltage	s	≤0.05
		time	The minimum operating voltage		≤0.08
	21	Closing time		s	0.1
	22	Each phase main loop resistance		u Ω	60		50
	23	Action contact allowed to wear cumulative thickness		mm	3

VS1(ZN63)-12/630-20KA Circuit Breaker