Ningbo Mingde Electrical Science&Technology Co.,Ltd. Ningbo Mingde Electrical Science&Technology Co.,Ltd. is an innovative manufacturer of electrical component products, integrating , manufacturing and sale together, Company locates in Cixi Kandun Industrial Park in Ningbo China, where is near to Hangzhou Bay Bridge Our core products covering high-quality operating mechanism of vacuum circuit breaker, earthing switches,etc. Meanwhile we also supply OEM vacuum circuit breaker. Besides advanced machine equipment, our company also equipped with a professional team of design and manufacturing , from it foundation, the company works for many large enterprises to design high voltage breaker and operating mechanism, and manufactures products to meet customers special requirements. Insisting on technical innovation, high quality...

Vacuum Circuit Breaker

VMD1-12 assemble pole vacuum circuit breaker, VMD2-12 embedded pole assemble pole vacuum circuit breaker, VMD4-24 vacuum circuit breaker, VMD5-40.5 vacuum circuit breaker, ZN63A(VS1)-12 vacuum circuit breaker, vacuum circuit breaker, vacuum circuit breaker, vacuum circuit breaker,

Operating Mechanism

Operating Mechanism, Operating Mechanism, Spring Drive Mechanism, Operating Mechanism for Outdoor VCB, Operating Mechanism, Operating Mechanism, Operating Mechanism, Operating Mechanism, Spring Drive Mechanism, Operating Mechanism, Operating Mechanism, Operating Mechanism, Operating Mechanism Accessory, 12kV operating mechanism, 24-40.5kV operatiing mechanism,

Earthing Switches

Earthing Switches, Grounding Switches, EK6 earthing switch, Zero-sequence Current Transformer, CURRENT TRANSFORMER, Current Transformer, Voltage Transformer, Voltage Transformer, Voltage Transformer,

VCB Accessories(Interrupter, Embedded pole, etc)

Assemble pole sleeve of contact, Vacuum Circuit Breaker Bracket, Vacuum Circuit Breaker Contact, Vacuum Circuit Breaker Contact Arm, Embedded Pole, Embedded Pole Sleeve of Contact, Flexible connector, Insulation Pulling Rod, Insulation Sleeve, Vacuum Circuit Breaker Handcart, Vacuum Interrupter, VD4 embedded pole, vacuum interrupter, 12KV vacuum interrupter, Electrical Parts,

Load Break Switch Accessories

Load Break Switch Accessories

Current/Voltage Transformer

• Vacuum Circuit Breakers
• High Voltage Vacuum Circuit Breaker
• Vacuum Circuit Breaker Accessories
• Operating Mechanism
• Spring Operating Mechanism
• Earthing Switches
• Grounding Switches
• Vacuum Circuit Breaker
• Spring Drive Mechanism
• Indoor Vacuum Circuit Breaker
• HV Vacuum Circuit Breaker
• Indoor High Voltage Vacuum Circuit Breaker
• Spring Operating Mechanism for Switchgear
• High Voltage Earthing Switches
• Indoor High Voltage Earthing Switches
• HV Earthing Switch
• High Voltage Apparatus Cabinet Earthing Switches
• Indoor AC HV Earthing Switch
• High Volt Ground Switch
• Vacuum Circuit Breaker Parts
• Vacuum Circuit Breaker Handcart
• Vacuum Circuit Breaker Contact
• Assemble Pole Sleeve of Contact
• Embedded Pole Sleeve of Contact
• Vacuum Circuit Breaker Contact Arm
• Embedded Pole
• Flexible Connector
• Insulation Pulling Rod
• Insulation Sleeve
• Vacuum Interrupter
• Vacuum Circuit Breaker Bracket
• Circuit Breaker
• circuit breaker operating mechanism
• operating mechanism of circuit breaker
• vacuum circuit breaker operation
• circuit breaker mechanism
• operating mechanism of switchgear
• load break switch accessories
• pole mount load break switch accessories
• Indoor High Voltage Switchgear
• LBS accessories
• Spring Drive Mechanism of Circuit Breaker
• Spring Drive Mechanism of Switchgear
• Spring Operating Mechanism for Circuit Breaker
• current transformer
• voltage transformer
• Current & Voltage Transformer
• Operating Mechanism Accessory
• Insulating Sleeve
• Insulated Tube
• Vacuum Circuit Breaker Truck
• Arc Distinguishing Chamber
• 12KV circuit breaker
• circuit breaker parts
• 12kv switchgear
• circuit breaker' embedded pole
• VD4 embedded pole
• 12kv vacuum interrupter
• Electrical Parts
• vacuum switch
• Vauum Breaker
• 36kv vacuum circuit breaker
• 12KV Vacuum Circuit Breaker
• 95kv Circuit Breaker
• 185kv Vacuum Circuit Breaker
• 40.5kv Vacuum Circuit Breaker
• 24kv Circuit Breaker
• 65kv Vacuum Circuit Breaker
• 125kv Vacuum Circuit Breaker
• 42kv Vacuum Circuit Breaker
• 75kv Vacuum Circuit Breaker
• 24kv Vacuum Circuit Breaker
• 12kV Voltage Vacuum Circuit Breaker
• 24kv Voltage Vacuum Circuit Breaker
• 36kv Voltage Vacuum Circuit Breaker
• 40.5kv Voltage Vacuum Circuit Breaker
• 12kv Grounding Switches
• 40.5kv Grounding Switches
• 12kv Earthing Switches
• 40.5kv Earthing Switches
• 10kv Earthing Switches
• 35kv Earthing Switches
• EK6 earthing switch
• 24kv Grounding Switches
• 36kv Earthing Switches
• Spring Operating Mechanism Accessory
• Spring Drive Mechanism Accessory
• VCB Operating Mechanism Accessory
• Vacuum Circuit Breaker Operation Accessory
• Circuit Breaker Mechanism Accessory