Home ꄲ Vacuum Circuit Breaker ꄲ 12kv outdoor Vacuum Circuit Breaker

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12kv outdoor Vacuum Circuit Breaker

12kv outdoor VCB
AC three-phase, 50HZ
630A, 1250A
OEM & ODM,Complete equipment
CCC,ISO9001,CE, CB,IEC60898

Product Introduction

12kv outdoor VCB (ZW32 series) spring mechanism outdoor vacuum breaker, a kind of outdoor pillar high voltage vacuum circuit breaker, with 50Hz, three-phase alternating current and 11KV rated voltage. It apply to open circuit、close the load current、 overload current and short -circuit current and other power distribution system, such as substation、industrial and mining

Normal service condition

Altitude		≤1000m
Ambient temperature	Max	+40℃
	Min	-15℃
Ambient humidity： Maximum average humidity		24 hour ≤95%
		1 month ≤90%
Maximum water vapor pressure		24 hours ≤2.2kpa
		1 month ≤1.8kpa

The ambient air has no obvious pollution of dust smoke, corrosive or combustible gases, steams or smog

12kv VCB Technical Parameters

No.	Items		Unit	Parameter
1	Rated voltage		KV	12
2	Rated current		A	630 1250
3	Rated frequency		Hz	50/60
4	1 minute withstand pressure	Wet	KV	34
		Dry		42
		To ground		49
5	Lightning shock withstand current phase, to ground		KV	75/85
6	Rated short-circuit breaking current		KA	20 25
7	Rated short-circuit closing current			50 63
8	Rated peak value of withstand current			50 63
9	4s short time withstand current			20 25
10	Rated operating sequence			O-0.3s-CO-180s-CO
11	Rated short circuit breaking current breaking times		times	30
12	Mechanical endurance			30000
13	Permanent magnet control voltage		V	AC/DC 220
14	Secondary circuit, 1 minute power frequency withstand voltage		KV	2

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