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The Handcart type indoor vacuum circuit breaker is suitable for 12kV. Apply to industrial and mining enterprises, substation and transmission and distribution systems for control and protection switching; particularly suitable for metallurgy. Electric arc steel-making industries, etc. frequent operation required, as a control and protection equipment.

Product parameter:

1.Rated Voltage:12kV

2.Working rate withstand voltage (1 minute):75kV

3.lightning impulse withstand voltage :42kV

4.Rated short-circuit breaking current:20/31.5/40kA

5.Rated Current:630/1250A

6.Rated thermal stability current (effective value):20/25kA

7.Rated stable current (peak value):50/63kA

8.Rated short-circuit making current (peak value):50/63kA

9.Rated short circuit breaking current breaking times:50 times

10.Power frequency withstand voltage of secondary circuit (1min):2000V

11.Rated operation sequence:O-0.3s-C0-180s-CO

12.Rated single / back to back capacitor bank breaking current:630/400 800/400kA

13.Mechanical life:≥50000≥50000≥30000 time

Applicable place: (particularly to the places needing frequent operation)

1.The electrical equipment control and protection in industrial.

2.Mining enterprises.

3.Power plants.

4.Substations.

It can be fixed in a switch cabinet or installed on a handcart.

Stable performance and easy installation.

Advantages

1.Simple structure.

2.Adapt ultra low resistance type vacuum interrupter.

3.Adapt optimization and modular spring operating mechanism.

4.Suitable for occasions with frequent operation.

5.Free maintenance and long service life.

6.High reliable performance.

Our Factory:

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With advanced technologies and facilities, strict high quality regulate, reasonable price tag, excellent support and close co-operation with shoppers, we have been devoted to furnishing the best benefit for Free Sample! Nc MCB Miniature Circuit Breaker 125AMP. We will further increase the market competitiveness and new driving forces for enterprise development. We have all day online sales to make sure the pre-sale and after-sale service in time.