For this reason, we adopt international standards introducing advanced domestic and foreign technical production lines and combining our own rich production experience to ensure ring main unit assembles, YB Electrical Prefabricated Substation, AC Metal-clad Electrical Switchgear is scientific with comprehensive functions. Only by continuously carrying out quality innovation, we can create excellent quality and achieve sustainable development. We guarantee to provide customers with high quality products and timely and satisfactory service.

Product introduction:

40.5kV High Voltage Vacuum Circuit Breaker is a kind of outdoor HV switching devices used in three-phase AC 50Hz. 40.5kV. It uses spring operating mechanism or electromagnetic operating mechanism; it can be controlled to switch-on/off remotely; it can also be used to control energy storage and switch -on/off manually. The breaker conforms to standards of GB 1984-89AC HV breaker and IEC56AC HV breaker. It is used for protecting and controlling distribution systems in transformer substations, operating in gear and protecting the circuit in country electric nets, industrial and mining enterprises when short-circuit occurs. The breaker has porcelain post structure. The upper knob insulator has vacancy arc-extinguishing chamber while the nether one is post knob insulator.

1.Rated Voltage:40.5kV

2.Rated Current:630/1250A

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

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

5.Insulation level lightning impulse withstand voltage (peak value): 185kv

How to proceed an order?

1. let us know your requirements or application.

2.We quote according to your requirements or our suggestions.

3.customer confirms the samples and places deposit for formal order.

4.We arrange the production.

Our vision is to continue to innovate and provide core competitive advantages of our 40.5kv High Efficiency Outdoor High Voltage Vacuum Circuit Breaker to help our customers succeed. Our company's internal philosophy is "integrity and unity". We are committed to providing 'professional, reliable and stable' products and services to global users.