Fixed Indoor Vacuum Circuit Breaker

ZIKAI® is Fixed Indoor Vacuum Circuit Breaker manufacturer and supplier in China. We can provide professional service and better price for you. If you interested in products, please contact with us. We follow the quality of rest assured that the price of conscience, dedicated service.

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Product Description

The ZN63(VS1-12) series represents an indoor, fixed-type three-phase alternating current (AC) switchgear system operating at 50Hz and featuring a rated voltage of 12KV. This equipment is specifically tailored for industrial and mining enterprises, power plants, substations, as well as electrical control and protection facilities. By seamlessly integrating the operating mechanism with the circuit breaker body, it can be configured as a fixed installation unit.

The primary circuit section utilizes an integral solid-sealed pole design, enabling the circuit breaker to achieve miniaturization, high reliability, and maintenance-free operation. This feature makes it compatible and suitable for use within the XGN series of fixed switchgear cabinets, enhancing versatility and efficiency in various electrical infrastructure applications.

Model meaning

Zi Kai Fixed Indoor vacuum circuit breaker product parameters:

number	item			unit	data
1	Rated voltage			KV	12
2	Maximum operating voltage			KV	12
3	Rated current			A	63	630 1250			1200 1600
						1600 2000			2000 2500
					1250
						2500 3150			3150 4000
4	Rated short-circuit breaking current (rated thermal stable current - RMS)			KA	20/25	31.5		40
5	Rated short circuit closing current (peak)			KA	50/63	80		100
6	Rated peak withstand current (rated dynamic stable current - peak)			KA	50/63	80		100
7	4S rated short-circuit withstand voltage			KA	20/25	31.5		40
8	Rated insulation level		Working voltage (rated before and after breaking)/lmin power frequency voltage	KV	Over the ground42（fracture48）
			Impulse withstand voltage (before and after rated breaking)/ peak rated lightning impulse withstand voltage		Over the ground75（fracture85）
9	Rated thermal stability time			S	4
10	Rated operating sequence				Split-0.3s-close-Split-180s-close-Split
11	Mechanical life			time	20000
12	Rated short circuit breaking current breaking times			time	50
13	Rated closing voltage of operating mechanism (DC)			V	AC、DC110，200
14	Rated switching voltage of operating mechanism (DC)			V	AC、DC110，200
15	Contact opening distance			mm	11±1
16	overstroke			mm	3.5±0.5
17	Three phase, closing bounce time			ms	≤2
18	Contact closing bounce time			ms	≤2
19	Average opening speed			m/s	0.9~1.2
	Average closing speed				0.5~0.8
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 circuit resistance of each phase			μΩ	630≤50		1250≤45
23	Allowable wear accumulation thickness of dynamic and static contacts			mm mm	3

Zi Kai Fixed Indoor vacuum circuit breaker Outline and mounting dimensions

Zi Kai Fixed Indoor vacuum circuit breaker Feature And Application

Feature

High Vacuum arc extinguishing technology: Fixed Indoor Vacuum Circuit Breaker uses high vacuum as the arc extinguishing medium and the insulating medium of the contact gap, which has excellent arc extinguishing performance. In vacuum environment, the generation and maintenance of arc are greatly inhibited, thus improving the breaking ability and service life of circuit breakers.

High reliability: Fixed Indoor Vacuum Circuit Breaker has high operational reliability and stability, and can work normally in a variety of harsh environments to ensure the safe and stable operation of the power system.

Versatility: In addition to the basic opening and closing function, some Fixed Indoor Vacuum Circuit breakers also have overload protection, short circuit protection and other protection functions, which can meet the needs of different power systems.

Application

Industrial and mining enterprises: large industrial and mining enterprises have a large demand for electricity and have high requirements for the reliability of power supply. The fixed indoor vacuum circuit breaker is the key distribution equipment to control and protect the stable operation of power system.

Power plants, substations: as one of the core power distribution equipment of power plants and substations, fixed indoor vacuum circuit breakers are mainly responsible for the distribution of electric energy and fault isolation, which can ensure the safe and efficient operation of the power system.

Places with frequent operation: Due to the characteristics of its operation without frequent maintenance, the fixed indoor vacuum circuit breaker is especially suitable for places where frequent circuit switches are required.

No oil, less maintenance requirements: With the improvement of environmental protection requirements, more and more power systems tend to use oil-free equipment. Fixed indoor vacuum circuit breakers do not require insulating oil, reducing environmental pollution and fire risk, while reducing maintenance efforts.

Zi Kai Fixed Indoor vacuum circuit breaker Details

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FAQ

1、Are you a trading company or a direct manufacturer?

We are a professional factory with 10 years of industry experience, specializing in the manufacture of high and low voltage switchgear, substations, transformers, cable distribution boxes and all kinds of electrical equipment, including but not limited to vacuum circuit breakers, load break switches, etc. Our factory with its excellent product quality and professional service, won the State Grid Corporation of China excellent supplier title.

2、Do you accept customized serveice ?

We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied

3、What is your payment terms ?

30%T/T in adcance,70% before shipment . West union , L/C are also accept

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Contact Info

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Address

Sulu Avenue, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, China
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Tel

+86-15167776274
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E-mail

zikai@cnzikai.com

If you have any enquiry about quotation or cooperation, please feel free to email or use the following inquiry form. Our sales representative will contact you within 24 hours.