Manual Indoor Vacuum Circuit Breaker

Find a huge selection of Manual Indoor Vacuum Circuit Breaker from China at ZIKAI®. Provide professional after-sales service and the right price, looking forward to cooperation. ZN63(VS1-12)-12 series hand-operated high-voltage vacuum circuit breaker, as a type of indoor switchgear designed for three-phase AC 50Hz power system, its rated voltage is set to 12kV, widely used in industrial and mining enterprise environment, power plants, substations and various electrical facilities, assuming the key role of control and protection. It is especially suitable for working environments that require frequent operations. The circuit breaker cleverly integrates the operating mechanism and the body structure to achieve an integrated design. At the same time, it also supports the matching of a special propulsion mechanism and is flexibly constructed as a handcart unit for easy operation and maintenance.

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Product Description

Model meaning

Zi Kai Manual 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 Manual Indoor vacuum circuit breaker Outline and mounting dimensions

Zi Kai Manual Indoor vacuum circuit breaker Handcart grounding mode

210mm	L1(mm) 320	L2(mm)	L3(mm)	L4(mm)
Match 275mm phase spacing	400	294	45	370

Zi Kai Fixed Manual Indoor vacuum circuit breaker Feature And Application

Feature

Flexible operation: The circuit breaker adopts hand-car design, easy to operate and flexible, easy to install, debug and maintain.

Fast breaking speed and high reliability: the electric field in the vacuum is used to isolate and disconnect the circuit, and the breaking speed can reach the millisecond level, which can quickly cut off the fault current and effectively protect the power equipment and system.

Strong carrying capacity: the handcart type high voltage vacuum circuit breaker has a strong ability to withstand short circuit current, and can cope with the large current impact in the power system to ensure the safe operation of the power system.

Easy maintenance: The circuit breaker adopts modular design, the connection between the components is tight, easy to disassemble and replace, reducing the maintenance cost and time.

Application

Power plants and substations: In these key places of power production and conversion, hand-operated high-voltage vacuum circuit breakers are used to protect and control the normal operation of power equipment to ensure the stability and safety of the power system.

Industrial and mining enterprises: In the power system of industrial and mining enterprises, circuit breakers are used to protect key equipment such as generators, transformers, and cables to prevent equipment damage and accidents caused by overload and short circuit.

Frequent operation places: Due to the flexible operation of the hand-operated high-voltage vacuum circuit breaker, it is especially suitable for environments that require frequent operation, such as power laboratories, power maintenance sites, etc.

Zi Kai Manual Indoor vacuum circuit breaker Details

certificates

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、 How can we guarantee quality?

Always a pre-production sample before mass production;
Always final Inspection before shipment;

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

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