Wholesale VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A

Wholesale VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A

VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A - Image 1
VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A - Image 2
VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A - Image 3
VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A - Image 4
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VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A
VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A - Image 2
VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A - Image 3
VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A - Image 4

VD4 12kV Medium-Voltage Indoor Vacuum Circuit Breaker, 630A–1250A

Description:

The MINGTUO VD4 12kV Vacuum Circuit Breaker (VCB) is a medium-voltage indoor breaker designed to provide precise protection and control for three-phase AC systems operating at 50Hz, with rated voltages from 3.6kV to 12kV. Supporting rated currents from 630A to 1250A, this breaker is ideal for indoor switchgear installations in substations, industrial facilities, and commercial power distribution systems. Employing advanced vacuum interrupter technology, it ensures rapid fault interruption, operational reliability, and long-term safety.

Applications:

Indoor medium-voltage switchgear panels

Industrial plants requiring reliable MV protection

Commercial infrastructure including hospitals, airports, and data centers

Systems demanding frequent operation and low-maintenance solutions
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Description

ACB Accessories and Assembly for NTNW Series

Mechanical Interlock for NTNW Series

Double Circuit Breakerswitching Cabinet

Under normal conditions, main contacts remain closed to allow continuous current flow. Upon detecting overcurrent or a short-circuit, the spring mechanism quickly separates the contacts, producing an arc contained within the vacuum interrupter. The arc is cooled and extinguished, safely isolating the faulty circuit and preventing damage to downstream equipment. This ensures high operational reliability and minimal maintenance needs.

Insulating Cylinder

Insulating Cylinder

Main Product

Moving Contact

Flexible Connection

Touch And Touch Arm Cover

Bearer Supporting Bracket

Vaccum Tube

vs1 medium-voltage indoor vacuum circuit breaker

High voltage vacuum circuit breaker

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To ensure transportation safety, our electrical products are exported in reinforced wooden crates. The crates undergo heat treatment and bear the ISPM-15 mark, enabling swift customs clearance. The raised base design facilitates forklift operation, while internal shock-absorbing fastening ensures the products arrive intact. All exterior crates are clearly labeled and comply with international logistics standards.

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High And Low Voltage Switchgear ACB MCCB VCB

Box-Type Substation Uses Our VCB, MCCB,and ACB

High And Low Voltage Cabinets Successfully Powered

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    Zhejiang Mingtuo Electrical Technology Co., Ltd.

    Zhejiang Mingtuo Electrical Technology Co., Ltd. is a technology-driven enterprise specializing in the research, development, and manufacturing of low-voltage and medium-voltage circuit breakers. Low Voltage Air Circuit Breaker Suppliers. Leveraging Liushi’s comprehensive electrical industry chain and local advantages, we provide reliable and safe electrical protection products along with customized solutions for global industrial, commercial, and residential power distribution systems. We are committed to becoming a trusted electrical protection partner for global customers through professional engineering capabilities, consistent manufacturing quality, and flexible customization services.

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