What are the main technical parameters of the 12KV interrupter?

Rated voltage is 12kV, rated current is 400/630A, rated frequency is 50Hz. Rated short-time power frequency withstand voltage is 60kV, and lighting impulse withstand voltage is 107kV. Rated breaking current max is 5.0kA.

12kv High Voltage Vacuum Interrupter for VCB Vacuum Circuit Breaker

Name: 12kv High Voltage Vacuum Interrupter for VCB Vacuum Circuit Breaker
Brand: Wuhan Feite Electric Co., Ltd.
SKU: 1961887651

Hubei, ChinaWuhan Feite Electric Co., Ltd.

US$55.00-78.00

3 Pieces

Sample price:US$80.00/piece.Request sample

Product profile

Customization

Available

Breaking Capacity

High Voltage Circuit Breakers

Operation

Manual Type

Model NO.

VTJ341B

Speed

Normal Type Circuit Breaker

Arc-extinguishing Medium

Vacuum

Installation

Fixed

Structure

ACB

Poles Number

Type

Circuit Breaker

Function

Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB

Certification

ISO9001-2000

Electricity Type

Vacuum

Number of Pole

Main Circuit Rating Current

250/400/630A

Phase

1/2/3

Main Circuit Rating Voltage

12KV

Name

Vacuum Interrupter

Shelf life

20years

Color

Silver, Copper

Afterserivce

Yes

Transport Package

Pallet, Carton(Ploy Bags, Foam)

Specification

Circuit-Breaker Failure Protection

Trademark

Feite Brand

Origin

China

HS Code

8535900090

Production Capacity

600000/Year

Key features

High Insulation Performance: Vacuum arc extinguishing chamber ensures high insulation to cut off arc and inhibit current safely.

Long Service Lifetime: Shelf life up to 20 years with mechanical life of 30,000 times and electrical life of 250,000 times.

Advanced Exhaust Technology: Uses advanced one-exhaust technology for small volume, low noise, and explosion-free operation.

Durable Contact Materials: Features copper tungsten and tungsten carbide alloy contacts for reliable performance.

Wide Application Scope: Suitable for power transmission, metallurgy, mining, petroleum, chemical, and railway industries.

Low Maintenance Cost: Designed for easy maintenance with low noise and non-pollution characteristics.

ISO9001 Certified Quality: Production process strictly conforms to ISO9001:2008 quality management system standards.

Customizable Pole Configuration: Available in 1, 2, or 3 poles with rated currents of 250A, 400A, or 630A.

Company profile

Wuhan Feite Electric Co., Ltd.

Hubei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2012-09-01 CertifiedNearest Port: Shanghai PortAverage Response Time: >24h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryWUHAN FEITE ELECTRIC CO., LTD. is presented as an electrical and electronics supplier specializing in vacuum interrupters, embedded poles, circuit breakers, switchgear, switches, and contactors. The stated manufacturing plant area is 23,095 m², with more than 10 production lines and annual output of 600,000 pieces across relevant product categories. The supplier reports ISO 9001:2015 certification, 5 years of R&D engineer experience, and 6–10 quality-control staff. Export activity reportedly began in 2012, with exports representing 11%–20% of total sales. Trade records show shipments of multiple medium- and high-voltage vacuum interrupter models to a buyer in India through Shanghai. Evidence is insufficient to assess after-sales service, financial credibility, and customization capability. The identified customer transactions support customer-case evidence, but the available records show only one named buyer.

Supplier typeThe supplier is identified as an electrical and electronics manufacturer focused on vacuum interrupters, vacuum embedded poles, circuit breakers, switchgear, switches, arc-extinguishing chambers, and contactors. Its stated production output and operation of more than 10 production lines support classification as a specialized manufacturing supplier rather than a purely trading entity.

CertificationsThe supplier reports holding an ISO 9001:2015 certificate. This is explicit evidence of a certified quality-management system, although the provided information does not include certificate scope, issuing body, validity period, or product-specific certifications.

Production capacityThe supplier states a 23,095 m² manufacturing plant, more than 10 production lines, and annual output of 600,000 pieces covering vacuum interrupters, embedded poles, circuit breakers, contactors, and related products. These explicit capacity indicators support a positive assessment of production capability.

Client casesThe records associate WUHAN FEITE ELECTRIC CO., LTD. with SHREEM ELECTRIC LIMITED and show several vacuum interrupter transactions, including 12 kV and 36 kV models, with imports listed from India and Shanghai as the origin port. This provides explicit evidence of at least one identifiable buyer relationship and product shipment activity, although the available evidence does not establish the total customer base or customer satisfaction.

Product Q&A

Q:How to check the vacuum interrupter before putting it into use?

Check if packing is in good condition and appearance matches the test certificate. Ensure the ceramic envelope is integrated when shaken. Clean the surface with a dry or alcohol-damped cloth. Test power frequency withstand voltage by applying 70% of rated voltage for 1 minute; no sudden change or trip indicates qualification.

Q:What are the mounting requirements for the vacuum interrupter?

Clean the surface with cotton or alcohol-dipped silk cloth before mounting. Clean conducting poles and connection surfaces for good contact. Adjust the interrupter to meet equipment specifications. Ensure the guide unit is provided, coaxiality is met, and no torque force is applied on the bellow.

Q:What precautions should be taken during mounting?

Do not beat or strike the envelope with hard objects to avoid cracks. Ensure the conducting pole is vertical on the fixed end face. Avoid repeated disassembly to prevent screw slipping. Do not twist the moving pole or over-press the bellow. Ensure applied force does not exceed static relief pressure.

Q:How to periodically check the vacuum interrupter during application?

Periodically check using power frequency withstand voltage tests. Monitor contact burnout; if the moving conducting pole shows burnout marks, the electrical endurance is finished and the unit must be replaced.

Q:What is the shelf life and mechanical life of the product?

The shelf life is 20 years. The mechanical life is 30,000 times, and the electrical life is 250,000 times for AC-3 and 100,000 times for AC-4.