OEM Indoor Fixed Vacuum Circuit Breaker 12kv with Spring Operating Mechanism

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Product Description

Indoor Vacuum Circuit Breaker Banner
Basic Information
Model NO.:VS1-12M
Speed:High-Speed
Medium:Vacuum
Installation:Fixed
Poles:3
Certification:CE
Frequency:50/60Hz
Short-Circuit Current:20-40kA
Product Introduction
VS1-12M VCB Product
VCB Side View VCB Mechanism

The VS1-12M series indoor high voltage vacuum circuit breaker (VCB) features a modular mechanism and draw-out type design. With a polar distance of 210mm (suitable for 800mm cabinet widths), it is rated for 12kV three-phase AC 50Hz indoor switchgear applications.

Designed for power stations, substations, and industrial mining enterprises, it provides reliable control and protection for transmission and distribution systems. It is particularly suited for high-altitude breaking loads and frequent operation environments due to its robust interlock function.

Advanced Operating Mechanism: The spring energy storage type mechanism supports AC/DC operation and manual backup. It is compatible with long-life permanent magnetic actuators for extremely frequent usage.
Moisture Resistant Design

Moisture-Resistant Design
Auto-regulated heating element for harsh coastal environments.

Climate Adaptive

Climate-Adaptive Operation
Ensures reliability from -40°C to +40°C.

Technical Specifications
No. Item Unit Data
1Rated voltageKV12
2Rated frequencyHZ50/60
3Rated CurrentA630 - 4000
4Rated short-circuit breaking currentKA20, 25, 31.5, 40
5Rated short-circuit durations4
6Mechanical lifeTimes30000
7Closing timems≤ 70
8Opening timems≤ 50
Product Gallery
VCB Dimensions
Main Product 1 Main Product 2 Main Product 3
Manufacturing & Quality

With over ten years of production and sales experience, we specialize in manufacturing high-voltage power transmission and distribution equipment. Our product range includes Vacuum Circuit Breakers (VCB), SF6 Circuit Breakers, Disconnecting Switches, and Load Break Switches (LBS). Our facilities utilize optimized assembly lines to meet diverse global needs.

Factory Workshop Testing Area
Certificates Packaging
Frequently Asked Questions
Why choose our vacuum circuit breakers?
We are recognized for high cost-effectiveness and excellent after-sales support, providing reliable power distribution solutions for various industrial environments.
What is included in the after-sales service?
We provide comprehensive support, including installation guidance, debugging, maintenance, fault diagnosis, and replacement of related accessories.
How long is the warranty period?
We offer a 24-month warranty covering material defects and assembly processes. Please note that artificial damage or unauthorized modifications are not covered.
Do you support OEM or customized products?
Yes, our technical team can customize non-standard products to meet the specific technical requirements of domestic and international customers.
What is the typical delivery timeframe?
There is no MOQ; single samples can be supplied. Delivery typically ranges from 3 to 40 days, depending on whether the product is standard or customized.
Are the VCBs compatible with international standards?
Yes, all products conform to National Standard GB1984-2003 and related IEC standards for safety and performance.

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