ZN63(VBM7)-12 fixed indoor vacuum circuit breaker

Name: ZN63(VBM7)-12 fixed indoor vacuum circuit breaker
Brand: Zhiyue
SKU: 00028
Rating: 4.1 (64 reviews)

Notes

VS1-12 side-mounted type vacuum circuit breaker is a kind of indoor high voltage switch device which is used in the AC Three-phase power system of frequency 50HZ,rated voltage 12KV to be the protection and control unit.
Because of the special superiority of vacuum circuit breaker, especially suitable for applications that require frequent operation at rated operating Current or multiple open short-circuit breaking current location.

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Detailed introduction

ZN63(VBM7)-12 fixed indoor vacuum circuit breaker

ZN63(VBM7)-12 Indoor High Voltage Vacuum Circuit Breaker

Summary
VS1-12 side-mounted type vacuum circuit breaker is a kind of indoor high voltage switch device which is used in the AC Three-phase power system of frequency 50HZ,rated voltage 12KV to be the protection and control unit. Because of the special superiority of vacuum circuit breaker, especially suitable for applications that require frequent operation at rated operating Current or multiple open short-circuit breaking current location. It 1s especially suitable to the place requiring frequent operations.
VS1-12 side-mounted type vacuum circuit breaker adopts fixed installation, which is mainly used in the fixed switchgear. It can be used alone or used in ring network power supply system, box-type variable system and non-standard power supply system to protect and control the

Technical Specifications

NO.	Item		Units	Parameters
1	Rated voltage		kV	12
2	Rated cu rrent		A	630~1250	1250	1250
3	Rated short-circu it breaking cu rrent		kA	20	25	31.5
4	Rated short-circu it closing cu rrent		kA	50	63	80
5	Rated peak withstand cu rrent		kA	50	63	80
6	4S rated short-ci rcu it withstand current		kA	20	25	31.5
7	Rated insulation level	1min power freq uency voltage	kV	42 (fracture 48)
		Lightning Impulse Withstand voltage (peak)		75 (fracture 65)
8	Rated operat i ng sequence			O－ 0.3S-CO-180S-CO
9	Mechanism life		Times	10000
10	Opening times of rated short-circuit breaking current		Times	50
11	Rated operator closing voltage(DC)		V	AC/DC 220,110
12	Rated operator open i ng voltage(DC)		V	AC/DC 220,110
13	Clearance between open contact		mm	11 ± 1
14	Over-travel( Contact springcompression degree)		mm	3.5 ± 0.5
15	Three phase points, closing bounce time		ms	≤2
16	Contact closing bounce time		ms	≤2
17	Average opening speed		m/s	1.1 ± 0.2
18	Average closing speed		m/s	0.6 ± 0.2
19	Operning time	The highest operati n g voltage	s	≤0.05
		The lowest operating voltage		≤0.08
20	Closing time		s	0.1
21	Dynamic and static contact allowed to weara cumulative thickness		mm	3

Model Implication

Overall Dimensions

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