• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


SVC series12kV/400A Vacuum Contactor

  • SVC series12kV/400A Vacuum Contactor

Key attributes

Brand Wone Store
Model NO. SVC series12kV/400A Vacuum Contactor
Rated voltage 12kV
Rated normal current 630A
Rated frequency 50/60Hz
Series SVC

Product descriptions from the supplier

Description

Product Description

The SVC Series 12kV/400A Vacuum Contactor is a core control device specifically designed for medium-voltage power systems. With a rated voltage of 12kV and a rated current of 400A, it accurately adapts to 12kV-grade medium-voltage power distribution scenarios. Adopting mature vacuum arc-extinguishing technology, it can reliably realize circuit on-off control while featuring excellent safety and durability. Widely used in industrial power distribution cabinets, frequency converter cabinets, power plant auxiliary drive systems and other scenarios, it meets the core requirements of medium-voltage power circuits for stable control and low operation and maintenance costs, providing key power support for the efficient operation of industrial production.

 Features

  • Precise Adaptation to Medium-Voltage Scenarios with Strong Parameter Compatibility:With a rated voltage of 12kV and rated current of 400A, it perfectly matches the power control requirements of 12kV medium-voltage distribution systems. It can be connected to power distribution cabinets, frequency converter cabinets and other equipment without additional adjustments, avoiding complex selection issues caused by parameter mismatches, thus ensuring more direct adaptability.

  • Vacuum Arc-Extinguishing Technology for Safe and Reliable Breaking:Equipped with a high-performance vacuum interrupter, it features excellent arc-extinguishing capability. It can effectively cut off the rated current and instantaneous short-circuit current under 12kV voltage, with no arc leakage during the breaking process. This eliminates the risk of equipment damage from arc burns or fire hazards, making it particularly suitable for industrial power scenarios with strict safety requirements.

  • Long Service Life and Low Maintenance for Reduced Operating Costs:Core components are made of wear-resistant and anti-aging materials, achieving a mechanical life of over 1,000,000 operations and an electrical life of more than 100,000 operations. The sealed structure minimizes the impact of dust and moisture on internal components, resulting in near-zero maintenance needs. This significantly reduces downtime for maintenance and lowers long-term operating costs.

  • Compact Structure with High Installation Compatibility:Adopting an optimized compact design, its volume is approximately 15% smaller than traditional contactors with the same parameters, saving cabinet installation space. It supports standard rail or bolt mounting, and its terminal layout is compatible with the wiring habits of most medium-voltage equipment, enabling quick integration into existing power distribution systems with high installation convenience.

Parameters

Main loop rated parameters

Rated operating voltage

12 kV

Rated Operating Current (AC-3)

400A

630A

Rated frequency

50/60 Hz

Related capabilities

4000 A

6300 A

Breaking ability

3200 A

5040 A

Short-term withstand current (4 seconds)

4000 A

6300 A

Switch capacity of a single capacitor bank

3500 kVar

50Hz power frequency withstand voltage

42 kV, 1 minute

Lightning shock withstand voltage

75 kV

Mechanical life

1,000,000

1,000,000

Electrical Life (AC-3)

250,000

250,000

Rated Operating Frequency (AC-3)

300 times/hour

300 times/hour

Contact resistance

≤100 µΩ

≤100 µΩ

Control loop rating parameters

The coil controls the voltage Ue

110/220 VAC 50/60Hz

Operating voltage range

0.8-1.1×Ue

Release voltage

≤0.5×Ue

Aspiration time

≤80 ms

Break time

≤80 ms

Three-phase synchronization

≤2 ms

Closing bounce time

≤2 ms

Auxiliary contacts

3NO+2NC as standard, which can be expanded according to requirements

Application conditions

Operating temperature

-25~+40ºC

Maximum relative humidity

90% (at +25ºC)

elevation

2000 m

weight

Approx. 30 kg

Dimensions (W×H×D)

470 mm×540 mm×170 mm

Know your supplier
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m² Total staff: Highest Annual Export(usD): 300000000
Workplace: 1000m²
Total staff:
Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: Wire cable/High Voltage Electrical Apparatus/Low Voltage Electrical Apparatus/Instrument meters/New energy/Tester/Integrated Electrical Equipment/Production equipment/Generator/Electrical fittings/Instrument Transformer/Equipment Parts
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.

Related Products

Related Knowledges

  • How to Judge, Detect and Troubleshoot Transformer Core Faults
    1. Hazards, Causes, and Types of Multi-Point Grounding Faults in Transformer Cores1.1 Hazards of Multi-Point Grounding Faults in the CoreUnder normal operation, a transformer core must be grounded at only one point. During operation, alternating magnetic fields surround the windings. Due to electromagnetic induction, parasitic capacitances exist between the high-voltage and low-voltage windings, between the low-voltage winding and the core, and between the core and the tank. The energized windin
    01/27/2026
  • A Brief Discussion on the Selection of Grounding Transformers in Boost Stations
    A Brief Discussion on the Selection of Grounding Transformers in Boost StationsThe grounding transformer, commonly referred to as "grounding transformer," operates under the condition of being no-load during normal grid operation and overloaded during short-circuit faults. According to the difference in filling medium, common types can be divided into oil-immersed and dry-type; according to phase number, they can be classified into three-phase and single-phase grounding transformers. The groundi
    01/27/2026
  • Impact of DC Bias in Transformers at Renewable Energy Stations Near UHVDC Grounding Electrodes
    Impact of DC Bias in Transformers at Renewable Energy Stations Near UHVDC Grounding ElectrodesWhen the grounding electrode of an Ultra-High-Voltage Direct Current (UHVDC) transmission system is located close to a renewable energy power station, the return current flowing through the earth can cause a rise in ground potential around the electrode area. This ground potential rise leads to a shift in the neutral-point potential of nearby power transformers, inducing DC bias (or DC offset) in their
    01/15/2026
  • HECI GCB for Generators – Fast SF6 Circuit Breaker
    1.Definition and Function1.1 Role of the Generator Circuit BreakerThe Generator Circuit Breaker (GCB) is a controllable disconnect point located between the generator and the step-up transformer, serving as an interface between the generator and the power grid. Its primary functions include isolating generator-side faults and enabling operational control during generator synchronization and grid connection. The operating principle of a GCB is not significantly different from that of a standard c
    01/06/2026
  • Distribution Equipment Transformer Testing, Inspection, and Maintenance
    1.Transformer Maintenance and Inspection Open the low-voltage (LV) circuit breaker of the transformer under maintenance, remove the control power fuse, and hang a “Do Not Close” warning sign on the switch handle. Open the high-voltage (HV) circuit breaker of the transformer under maintenance, close the grounding switch, fully discharge the transformer, lock the HV switchgear, and hang a “Do Not Close” warning sign on the switch handle. For dry-type transformer maintenance: first clean the porcel
    12/25/2025
  • How to Test Insulation Resistance of Distribution Transformers
    In practical work, insulation resistance of distribution transformers is generally measured twice: the insulation resistance between thehigh-voltage (HV) windingand thelow-voltage (LV) winding plus the transformer tank, and the insulation resistance between theLV windingand theHV winding plus the transformer tank.If both measurements yield acceptable values, it indicates that the insulation among the HV winding, LV winding, and transformer tank is qualified. If either measurement fails, pairwise
    12/25/2025

Related Solutions

  • Dedicated Vacuum Contactor Solution for Port Shore Power Systems
    I. Background and Challenges​Shore power systems have become core technical equipment for ports to reduce carbon emissions and noise pollution. However, these systems face two major challenges in the harsh operational environment of ports:​Severe Environmental Corrosion: High humidity and salt spray in port areas cause serious corrosion to metal components and enclosures of electrical equipment, significantly impacting electrical lifespan and operational reliability.​High Switching Requirements:
    09/13/2025
  • ABB Vacuum Contactor KC2 Power Supply System Technical Transformation Plan
    Issue Overview​The 10kV air compressor starting system of a company utilizes the ABB vacuum contactor KC2 as the control component for the operating circuit. The dedicated wide-voltage power supply module paired with this contactor presents the following issues:​Frequent failures: The power supply module fails to properly transition the voltage from 300V to 12V, resulting in fuse blowouts.​Poor heat dissipation: Enclosed installation of the module leads to insufficient heat dissipation, acceler
    09/13/2025
  • Solution for Medium-Voltage Motor Control and Protection Using Vacuum Contactor-Fuse (VCF) in a Coal Conveying System
    1.Project BackgroundA coal conveying system comprises 15 belt conveyors driven by medium-voltage motors. The system operates under complex conditions, with motors often subjected to heavy loads and frequent starts. To address these challenges and achieve effective control and reliable protection during motor startup, the project comprehensively adopts Vacuum Contactor-Fuse (VCF) combination devices for the 6kV medium-voltage motor power distribution. This solution details the technical features,
    09/13/2025
Haven't found the right supplier yet? Let matching verified suppliers find you. Get Quotation Now
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Send inquiry
+86
Click to upload file

IEE Business will not sell or share your personal information.

Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.