Circuit Breakers
Medium- and low-voltage circuit-breaker series for switching and protection duties. Identify the voltage class and complete device configuration before comparing alternatives.
Transformer manufacturing is our core. Complementary equipment and components are supplied to the agreed scope. The manufacturer, brand, model, documents and warranty arrangements are confirmed in the quotation and order.
Explore the family.
6 series from the Mingkong selection guides. Open a model to view images and specifications.

Indoor vacuum circuit breaker
Voltage designation: 12 kV
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Solid-sealed vacuum circuit breaker
Voltage designation: 7.2–12 kV
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Outdoor vacuum circuit breaker
Voltage designation: 12 kV
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Outdoor vacuum circuit breaker
Voltage designation: 12 kV
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Air circuit breaker
Voltage designation: Low voltage
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Moulded-case circuit breaker
Voltage designation: Low voltage
View specifications ↗What needs to match?
- System voltage, rated current and breaking-duty requirement
- Indoor or outdoor location and fixed or withdrawable mounting
- Control supply, trip / close functions and protection interfaces
- Terminal layout, interlocks, accessories and complete device reference
A drawing, reference or existing-part photo can help clarify these details.
Send a family enquiry ↗Looking for a replacement?
Share the current part information and installation interfaces. The supply option and technical fit need to be reviewed together.
Prepare a replacement enquiry ↗Start with a drawing.
Include dimensions, materials and revision information where available. Add the quantity and delivery needs to your enquiry.
View information guides ↗
TRANSFORMERS & ELECTRICAL COMPONENTS