ZN28G/ZN28A-12 series 12kv 630a side mounted indoor high voltage vacuum circuit breaker

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USD $3,000 - $6,000 / Set

1 Set(Min.Order)

Port WENZHOU/NINGBO
Payment TermsT/T

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Product Details

Place of Origin	Zhejiang, China		Model Number	ZN28G/ZN28A-12
Type	Vacuum		Poles Number	3

Product Description

AMBIENT CONDITION

1. the ambient temperature:not higher than+40℃,not less than 10℃

2.the altitude:≤1000M

3.relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;air relative humidity on average less than 2210-3Mpa, on average less than 1.810-3Mpa

4.the surrounding air is not corrosive and flammable gas, steam and other significant pollution

5.earthquake intensity:≤8 degree

TECHNICAL SPECIFICATION

Item	Units	Parameters
Rated voltage	KV	12
Rated current	A	630-3150
Rated short-citcuit breaking current	KA	20	31.5	40
Rated short-circuit closing current	KA	50	80	100
Rated dynamic steady electric current(peak)	KA	50	80	100
Rated thermal stability current(RMS)	KA	20	31.5	40
Rated thermal stability time	s	4
the breaking times of rated short circuit breaking current	Times	30(50)
Rated operating sequence		0-0.3s-CO-180s-CO
a minute power frequency withstand voltage(RMS)	KV	the phase 42, section 48
lighting shock pressure	KV	the phase 75, section 85
Mechanical life	Times	20000
Rated storage and operation voltage	times	10000
Note: 20KA, 31.5KA t=0.3s t1=180s 40KA t=180s t1=180s

OVERALL DIMENSION

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Wenzhou Shouke Electric Co., Ltd.: Contact nameElva Dong
Chat Now; Phone0086-0577-13676571588; AddressCheao Industrial Zone,North Baixiang Town, Wenzhou, Zhejiang

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ZN28G/ZN28A-12 series 12kv 630a side mounted indoor high voltage vacuum circuit breaker

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