24KV 1250A Side Mounted Embedded Solid Seal Switchgear Vacuum Circuit Breaker

Eberry Electric Co., Ltd.

Product Description VCB-12 side mounted embedded solid seal switchgear VCB Vacuum Circuit Breaker Intorduction:VBR (VS1)- 12 side-mounted vacuum circuit breaker is an indoor high-voltage switchgear f...

EV Charging Infrastructure Eberry Electric Co., Ltd. 24 Dec 2025 ( )

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Product Description

VCB-12 side mounted embedded solid seal switchgear VCB Vacuum Circuit Breaker

Intorduction:

VBR (VS1)- 12 side-mounted vacuum circuit breaker is an indoor high-voltage switchgear for three-phase power system with rated voltage of 12 kV and frequency of 50 Hz. It is used as protection and control electric appliance due to special vacuum circuit breaker. Superiority, especially suitable for frequent operations requiring rated current or multiple short-circuit currents.

The VBR (VS1)-12 type side-mounted vacuum circuit breaker is fixedly mounted and is mainly used for fixed switchgear. The circuit breaker can be used alone or in ring power supply, box type or various non-standard power supply. system.

The main technical parameters:

NO	Item			Units	Technical parameters
1	Rated voltage			kV	12
2	Maximum working voltage			kV	12
3	Rated current			A	630/1250	630/1250		630/1250/1600
4	Rated short-circuit breaking current			kA	20	25		31.5
5	Rated short circuit closing current			kA	50	63		80
6	Rated peak withstand current			kA	50	63		80
7	4S rated short circuit withstand current			kA	20	25		31.5
8	Rated insulation level		Power frequency withstand voltage (before and after rated breaking)	kV	42(Fracture:48)
			Impact withstand voltage (before and after rated breaking)		75(Fracture:84)
9	Rated operation sequence				0-0.3s-Co-180s-Co
10	Mechanical life			times	10000
11	Rated short circuit current breaking times			times	50
12	Operating mechanism rated closing voltage (DC)			V	110,220
13	Operating mechanism rated trip current (DC)			V	110,200
14	Contact stroke			mm	11±1
15	Overtravel (contact spring compression length)			mm	3.5±0.5
16	Three-phase split and close bounce time			ms	≤2
17	Contact closing bounce time			ms	≤2
18	Average opening speed			m/s	1.2±0.2
19	Average closing speed			m/s	0.6±0.2
20	Opening time	At the highest operating voltage		s	≤0.05
		At the lowest operating voltage			≤0.08
21	Closing time			S	0.1
22	Main loop resistance of each phase			μΩ	60		50
23	Dynamic and static contacts allow wear cumulative thickness			mm	3

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Technical Specifications

Item	Specifications	Remarks
Update Date	Eberry Electric Co., Ltd.	2025
Lead time	within 30 days	Can be expedited
Material	See product manual	Request Inspection Report
Application	Applicable to multiple industries	Complies with standards
Keywords	VCB Vacuum Circuit Breaker