Manufacturing Companies for Dongfeng Truck Diesel Qsb4.5 4b3.9 6b - VS1-12KV MV Vacuum Circuit Breaker – Simply Buy

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Our enterprise since its inception, constantly regards product good quality as organization life, constantly improve production technology, strengthen merchandise high quality and continuously strengthen enterprise total good quality administration, in strict accordance with all the national standard ISO 9001:2000 for Circuit Breaker 80a , 3tf Seires Contactor 3tf49 , 220v Contactor Relay , For high quality gas welding & cutting equipment supplied on time and at the right price, you can count on company name.

Manufacturing Companies for Dongfeng Truck Diesel Qsb4.5 4b3.9 6b - VS1-12KV MV Vacuum Circuit Breaker – Simply Buy Detail:

VS1-12 vacuum circuit breaker

is a type of high voltage switch which appropriate to 12kv, 50Hz three phase alternating current system, applicable for protecting and controlling, especially appropriate to frequent operation and short circuit places. This type is mainly used in fixed or drawble type switchgear .

Advantages

Simple structure
Adapt ultra low resistance type vacuum interrupter
Adapt optimization and modular spring operating mechanism
Suitable for occasions with frequent operation
Free maintenance and long service life
High reliable performance

Ambient condition

1 Ambient temperature: max +40°C min -15°C(conveyance under -30°C is allowed)

2 Altitude: ≤1000m

3 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%; daily average saturated vapor pressure ≤2.2*10^-3 MPa; monthly average value ≤1.8*10^-3 MPa

4 Earthquake intensity: ≤8 degree

5 The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution

Main Technical Parameters

Item	Description		Unit	Data
1	Rated voltage		KV	12
	Rated frequency		Hz	50/60
3	Rated current		A	630 1250 1600 2000 2500 3150
4	Rated short-circuit breaking current		kA	25,31.5,50KA
5	Rated short-circuit making current(peak value)		kA	50,63,80
6	Rated short-time withstand current		kA	20,25,31.5
7	Rated withstand current(peak value)			50,63,80
8	Rated insulation level	Lightning impulse withstand voltage	KV	145
8	Rated insulation level	1 min power-frequency withstand voltage	KV	64
9	Rated operating sequence			OC-0.3s-CO-180S-CO
11	Rated short-circuit duration		s	4
12	Times of breaking with the rated short-circuit current		Times	30
13	Mechanical life		Times	10000
14	Weight		kg	150

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The corporate keeps towards the operation concept "scientific administration, superior quality and performance primacy, client supreme for Manufacturing Companies for Dongfeng Truck Diesel Qsb4.5 4b3.9 6b - VS1-12KV MV Vacuum Circuit Breaker – Simply Buy, The product will supply to all over the world, such as: Philadelphia , Czech Republic , Canada , Based on experienced engineers, all orders for drawing-based or sample-based processing are welcomed. We have won a good reputation for outstanding customer service among our overseas customers. We will continue to try the best to offer you good quality products and the best service. We are looking forward to serving you.

2043000700 Starter Motor