Is maintenance required for the vacuum interrupters?

No, the vacuum interrupters are maintenance-free throughout their service lives.

What certifications does the product have?

The product is certified under ISO9001-2000 standards.

What is the rated short-circuit breaking current?

The rated short-circuit breaking current (symm.) ranges from 16.3kA to 63kV depending on the model.

High-Performance Vd4 Indoor Vacuum Circuit Breaker with Trolley

Name: High-Performance Vd4 Indoor Vacuum Circuit Breaker with Trolley
Brand: Wenzhou Rockwill Electric Co., Ltd.
SKU: 1965761905

Zhejiang, ChinaWenzhou Rockwill Electric Co., Ltd.

US$1,500.00-5,000.00

1 Piece

Product profile

Customization

Available

Breaking Capacity

High Voltage Circuit Breakers

Operation

Electric Type

Model NO.

vd4

Speed

Normal Type Circuit Breaker

Arc-extinguishing Medium

Vacuum

Installation

Fixed/Drawable

Structure

Vcb

Poles Number

Type

Circuit Breaker

Function

Overcurrent Protection

Certification

ISO9001-2000

Transport Package

Carton

Specification

IEC, GB

Trademark

Rockwill

Origin

China

HS Code

8535210000

Production Capacity

1000PCS

Key features

High Breaking Capacity: Rated short-circuit breaking current up to 63kA for robust fault protection.

Vacuum Arc Extinguishing: Vacuum medium ensures maintenance-free interrupters throughout service life.

Flexible Installation: Available in fixed or withdrawable versions for versatile switchboard integration.

Compact Design: Small dimensions with high capacity, suitable for MV/LV transformer substations.

High Reliability: Exceptional operating reliability and long life expectancy for frequent switching.

Wide Application Scope: Suitable for cables, transformers, generators, motors, and capacitor banks.

ISO Certified Quality: Manufactured under ISO9001-2000 certification with 100% finished product inspection.

Customization Options: Offers full, minor, and flexible customization from samples or designs.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Wenzhou Rockwill Electric Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 16 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is a limited company offering switchgear, compact substations, high- and low-voltage equipment, and transformers. It reports four production lines, 21–30 quality-control staff, one-month lead times in both peak and off-peak periods, and export experience of 16 years with exports representing 51%–70% of sales. It provides broad customization, ODM, SDK, and OEM services, including OEM for known brands. Service governance is supported by written inspection, complaint-handling, corrective-action, and supplier-assessment procedures with records. However, no overseas warehouse, showroom, overseas agent or branch is available, and no overseas service countries are reported. Certification holdings and specific customer case details are not provided. Financial records are indicated for recent years, but the supplied information does not establish financial strength.

Supplier typeThe supplier is identified as a limited company, with a stated business scope covering switchgear, compact substations, high-voltage switchgear, low-voltage complete equipment, and transformers. This establishes a manufacturer or industrial equipment supplier profile, but the record does not provide further ownership or group-structure details.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and has an available SDK. These are explicit indicators of product-development and technical-support capability.

Production capacityThe supplier operates four production lines, has 21–30 quality-control staff, maintains inventory capability, and reports one-month lead times in both peak and off-peak seasons. It also has valid manufacturing contracts with each related subcontractor and a supplier network of 42 qualified suppliers, supporting production continuity; actual capacity volume is not otherwise established without using the excluded monetary output figure.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM capability and new-product activity, providing strong direct evidence of broad customization support.