VS1-12(ZN63A-12) 12KV Indoor Vacuum Circuit Breaker(12kV VCB)

VS1-12 12KV Indoor Vacuum Circuit Breaker

分类 High Voltage Circuit Breaker 标签 indoor vacuum circuit breaker

VS1-12 also named ZN63A-12 is 12kV indoor vacuum circuit breaker (VCB). Adopting vacuum interrupter for arc extinction, no pollution, maintenance-free, widely used in 12kV indoor high voltage switch cabinet for power distribution protection and control.

其他信息

Product Details:

General Introduction:

VS1-12(ZN63A-12) 12kV Indoor Vacuum Circuit Breaker (VCB) is a mainstream medium voltage indoor switchgear for 12kV power distribution system.

It uses high-performance vacuum interrupter as arc quenching medium, features small size, light weight, zero pollution, low noise and maintenance-free operation.

Available in fixed type and withdrawable trolley type, perfectly matched with KYN28 indoor switch cabinet. It is the ideal choice for commercial buildings, industrial plants, power plants, substations and new energy power distribution projects.

Working Conditions

1.Ambient temperature: not higher than +40 °C, not less than -15°C

2. Altitude: not exceed 1000m.

3. Relative humidity: daily average of not more than 95%, month average of not more than 90%.

4. Earthquake intensity: not more than ten.

5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.

Key Features

Vacuum interrupter arc extinction, safe, environmental friendly and no pollution

Compact integrated structure, small installation space

Maintenance-free during normal service life, low operation cost

High short-circuit breaking capacity, stable and reliable performance

Optional fixed type / withdrawable trolley type for cabinet installation

Spring operating mechanism, flexible manual and electric operation

Strong mechanical life, suitable for frequent switching operation

Good seismic and anti-corrosion performance, long service lifespan

Technical Specification:

Model: VS1-12 / ZN63A-12

Rated Voltage: 12kV

Rated Frequency: 50Hz

Rated Current: 630A, 1250A, 1600A, 2000A, 2500A, 3150A

Rated Short-circuit Breaking Current: 20kA, 25kA, 31.5kA, 40kA

Rated Short-time Withstand Current: 20kA~40kA / 4s

Installation Type: Indoor Fixed / Withdrawable Trolley Type

Arc Quenching Medium: Vacuum

Operating Mechanism: Spring Type

Ambient Temperature: -20℃ ~ +40℃

Applicable Altitude: ≤1000m

NO	Item	Units	parameters
1	Rated voltage	KV	12
2	Rated Frequency	HZ	50
3	Rated Current	A	630.1250.1600.2000.3150
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 number	nos	50s
8	Rated operating sequence		0-0.3s-CO-180s-CO
9	Rated lightning impulse withstandvoltage	kv	125
10	1min power frequency withstand voltage	KV	65
11	Closing time	ms	≤ 70
12	opening time	ms	≤ 50
13	Mechanical life	Times	20000
14	Rated Storage and operation voltage	V	AC DC 220/110
15	Breaking life	ms	≤ 80
16	Storage life	s	≤ 10

Application Scope

Widely used in 12kV indoor switchgear, power substations, industrial and mining enterprises, commercial complex, residential district power distribution, solar and wind power station, factory incoming and outgoing line protection, overload and short-circuit fault control.

Our Service

We supply full range VS1-12(ZN63A-12) 12kV vacuum circuit breaker with complete specifications and factory direct price. Support OEM, customized drawing, technical parameter selection and global after-sales technical support.