Can the insert material be customized?

Yes, the insert material can be customized to Brass or Steel with Zn Coating in accordance with customer needs.

What are the available sizes?

Available sizes include CT2-20, CT4-30, CT4-40, CT4-50, CT5-25, CJ4-30, and CJ4-40.

China Manufacturer CT4-40 Busbar Support Step Busbar Insulator

Name: China Manufacturer CT4-40 Busbar Support Step Busbar Insulator
Brand: Zhejiang C&J Electrical Holding Co., Ltd.
SKU: 822111955

Zhejiang, ChinaZhejiang C&J Electrical Holding Co., Ltd.

Negotiable

200 Pieces

Sample price:US$1.50/piece.Request sample

Product profile

Customization

Available

Application

Low-voltage, High-temperature

Material

BMC,SMC

Model NO.

CT4-40

Structure

Busbar Insulator

Type

A Type Insulator

Usage

Insulation

Size of Bearing Capacity

CT2-20,CT4-30,CT4-40,CT4-50,CT5-25,Cj4-30,Cj4-40

Certification

Color

Red

Insert

Brass.Steel with Zn Coating

Transport Package

Normal Packing

Trademark

C&J

Origin

Wenzhou China

HS Code

8546900000

Key features

Excellent Insulation Properties: Provides high electrical resistance, heat resistance, fire resistance, and low shrinkage.

High Tensile Strength: Features a tensile strength of 600LBS for secure and durable busbar support.

CE Certified Quality: Product meets CE certification standards for safety and compliance in electrical applications.

Customizable Inserts: Insert material can be customized to Brass or Steel with Zn Coating according to needs.

Versatile Material Options: Available in BMC and SMC materials to suit different application requirements.

Wide Application Range: Ideal for low-voltage power distribution cabinets, inverters, and power distribution boxes.

Long Industry Experience: Over 20 years of manufacturing experience ensuring quality and competitive pricing.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Zhejiang C&J Electrical Holding Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2021-02-26Average Response Time: ≤7.78h

AI-Powered supplier vetting

SummaryZhejiang C&J Electrical Holding Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory. It produces circuit breakers, inverters, and related electrical products, with three production lines, 6–10 quality-control staff, and stated annual miniature circuit-breaker output of 10,000,000 pieces. The supplier reports ISO 9001 management-system certification and describes CE/CB certification coverage, while an SGS audit record is valid from July 23, 2025 to July 22, 2026; the audit result is recorded as “0,” but its meaning is not defined. The company states that it serves more than 50 countries and regions and that exports represent 41%–50% of sales. It reports 50 years of combined R&D engineer experience and product intellectual-property and design-patent ownership. Evidence is insufficient to verify after-sales services, financial credibility, OEM/ODM customization, or named customer cases.

Supplier typeThe supplier is explicitly classified as both a trading company and manufacturer/factory, operates as a limited company in Zhejiang, China, and describes integrated R&D, production, sales, and electrical-product manufacturing activities.

CertificationsThe supplier reports ISO 9001 certification and states that its products undergo CE, CB, and other certification systems. An SGS audit record is listed as active from July 23, 2025 to July 22, 2026, although the recorded audit result “0” is not explained in the provided data.

R&D capabilityThe company states that inverter technology development is a core activity, maintains R&D and production functions, reports 50 years of total R&D-engineer experience, and claims intellectual-property and design-patent ownership. Specific recent product-launch data and detailed R&D service capabilities remain unknown.

Production capacityThe supplier reports precise manufacturing and testing facilities, three production lines, 6–10 quality-control staff, and annual miniature circuit-breaker output of 10,000,000 pieces. It also identifies manufacturing of circuit breakers, leakage breakers, molded-case breakers, and inverters, supporting a demonstrated production capability.

Product Q&A

Q:Are you a trading company or manufacturer?

We are professional manufacturer for low-voltage circuit breaker series products, Integrates research and development, manufacturing, processing and trade departments together. also we supply of different electrical and electronic items

Q:Why should you choose us?

more than 20years of professional teams will give you good quality products ,good service ,and reasonable price

Q:Is the MOQ fixed?

The MOQ is flexible and we accept small order as trial order.

Q:What is the rated voltage?

The rated voltage is up to 660V, making it a good choice for low voltage power distribution cabinet fixed bus.

Q:What materials are used for the insulator?

The product is made from BMC (Bough Moulding Compound) and SMC (Sheet Moulding Compound) using unsaturated resin hot pressing.