What are the available pole configurations?

The device is available in 1P+N and 3P+N configurations.

How is the product installed?

It is designed for fixed installation on a 35mm DIN rail using a fast clip device.

Cjro3 40A 230V RCBO Residual Current Circuit Breakers with Overload Protection

Name: Cjro3 40A 230V RCBO Residual Current Circuit Breakers with Overload Protection
Brand: Zhejiang C&J Electrical Holding Co., Ltd.
SKU: 2051320725

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

Negotiable

500 Pieces

Sample price:US$5.95/piece.Request sample

Product profile

Customization

Available

Breaking Capacity

Low Voltage Circuit Breakers

Operation

Electric Type

Model NO.

CJRO3-40 3P+N

Speed

Normal Type Circuit Breaker

Arc-extinguishing Medium

Vacuum

Installation

Fixed

Structure

MCB

Poles Number

1p+N

Type

Circuit Breaker

Function

Circuit-Breaker Failure Protection, Overcurrent Protection, RCCB

Certification

ISO9001-2000, CE

Rated Voltage

240V(230V)~

Rated Frequency

50/60Hz

Curve Type

B&C Curve

Transport Package

Normal Package

Specification

1p+N

Trademark

GSM

Origin

Wenzhou

HS Code

85362000

Production Capacity

500000PCS/Year

Key features

Dual Protection Functions: Combines MCB and RCD for overload, short circuit, and electric shock protection.

Wide Current Range: Available in rated currents from 6A to 40A for various applications.

High Breaking Capacity: Rated short-circuit capacity up to 6000A ensures safety during faults.

Multiple Trip Curves: Offers B, C, and D curve types to match different load characteristics.

Compliance with Standards: Meets IEC/EN 61009-1 standards and holds CE and ISO9001 certifications.

Long Mechanical Life: Designed for 10,000 mechanical operations and 4,000 electrical cycles.

Flexible Installation: Mounts on standard 35mm DIN rail with cable or busbar connections.

Diverse Sensitivity Options: Rated residual current sensitivity available from 0.01A to 0.5A.

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: ≤6.86h

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 a professional manufacturer for low-voltage circuit breaker series products, integrating R&D, manufacturing, processing, and trade departments. We also supply various electrical and electronic items.

Q:Why should you choose us?

We have over 20 years of professional teams providing good quality products, good service, and reasonable prices.

Q:Is the MOQ fixed?

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

Q:What is the rated voltage of this RCBO?

The rated voltage is AC 230V or 400V, suitable for AC 50Hz or 60Hz systems.

Q:What protection functions does this device offer?

It provides overload protection, short circuit protection, and electric shock protection (RCCB function).