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Indoor high voltage vacuum circuit breaker series

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China ZN63(VS1)-24 Indoor High Voltage Vacuum Circuit Breaker - Reliable Suppliers and Factory Solutions for Power Distribution

Introducing the ZN63(VS1)-24 Series, a premier 24kV indoor vacuum circuit breaker specifically designed for 50Hz three-phase AC systems. Manufactured in China, this circuit breaker is ideal for power stations, substations, and industrial applications, ensuring reliable control and protection in power distribution. As one of the leading suppliers in the industry, our factory offers a spring-operated mechanism with AC/DC or manual options, along with a long-life permanent magnetic actuator designed for up to 60,000 operations. This product is suitable for high-altitude and frequent operation environments, available in flexible fixed or handcart configurations to meet diverse requirements. Choose the ZN63(VS1)-24 Series for robust performance and exceptional reliability in your electrical systems

Product Details

Technical Specification

NO.	Item	Units	Parameters
1	Rated voltage	kV	24
2	Rated frequency	Hz	50
3	Rated current	A	630	1250	1600
4	Rated short-circuit breaking current	kA	20	25	31.5
5	Rated short-circuit closing current (peak)	kA	50	63	80
6	Rated short-circuit duration	S	4
7	Rated short-circuit breaking current breaking times	Times	20
8	Rated operating sequence		O-0.3s-CO-180s-CO
9	Rated lightning impulse withstand voltage (fracture)	kV	125
	1 min power frequency withstand voltage (fracture)	kV	65
10	Closing time	ms	≤100
11	Opening time	ms	≤50
12	Mechanical life	Times	20000
13	Rated storage and operation voltage	V	~220/110 (AC/DC 220/110)
14	Breaking life	ms	≤65
15	Energy storage time	s	≤10

Product Model

Dimension

Frequently Asked Questions

Q What is the rated voltage of this vacuum circuit breaker?

The rated voltage of this vacuum circuit breaker is 24 kV, making it suitable for medium-voltage power distribution systems operating at this voltage level.

Q What rated current options are available for this circuit breaker?

This circuit breaker is available in three rated current options: 630 A, 1250 A, and 1600 A, allowing flexible selection based on the specific load requirements of your application.

Q What is the mechanical life expectancy of this vacuum circuit breaker?

The mechanical life of this vacuum circuit breaker is 20,000 operations, ensuring long-term reliability and reduced maintenance costs over the product's service life.

Q What are the closing and opening times of this circuit breaker?

The closing time is ≤100 ms and the opening time is ≤50 ms. These fast response times ensure effective protection of electrical equipment during fault conditions.

Q What control voltage does this vacuum circuit breaker support?

The rated storage and operation voltage supports AC/DC 220 V and 110 V, providing compatibility with a wide range of substation control power supply systems.

Q What is the rated short-circuit breaking current and how many breaking operations are supported?

The rated short-circuit breaking current ranges from 20 kA to 31.5 kA depending on the selected model. The breaker supports up to 20 rated short-circuit breaking operations, ensuring robust performance under fault conditions.