What should I do if the MCB trips frequently?

First, check for obvious signs of overload, such as too many devices on the same circuit. If no overload is apparent, consult an electrician to diagnose underlying electrical issues.

Is this MCB suitable for outdoor use?

Yes, but it must be installed in weatherproof enclosures to protect it from the elements and ensure correct functionality in outdoor applications.

What certifications does this product hold?

This product holds CE and CCC certifications, ensuring compliance with international and specific regional safety standards.

AC or DC Overcurrent Protection Gwiec 2pole 10ka MCB L7

Name: AC or DC Overcurrent Protection Gwiec 2pole 10ka MCB L7
Brand: Yueqing Greenwich Imp & Exp Co., Ltd.
SKU: 2176002945

Zhejiang, ChinaYueqing Greenwich Imp & Exp Co., Ltd.

US$1.02

240 Pieces

Sample price:US$1.02/piece.Request sample

Product profile

Customization

Available

Breaking Capacity

Low Voltage Circuit Breakers

Operation

Electric Type

Model NO.

Speed

High-Speed Circuit Breaker

Arc-extinguishing Medium

Air

Installation

Fixed

Structure

MCB

Poles Number

Type

Circuit Breaker

Function

Overcurrent Protection

Certification

CE, CCC

Rated Current

1, 3, 6, 10, 16, 20, 25, 32, 40, 50, 63

Rated Voltage(Ue)

230V/400V

Rated Breaking Capacity

Icn 6ka

Work Environment Temperature

-5 to +40°

Case Protection Grade

IP40(Install After)

Electric Life

8000+

Mechanical Life

20000+

Pole No

1p 2p 3p 4p

Height

80mm

Width

17.5mm/1p

Installation Method

Guide Rail Installation

Current Type

AC or DC

Trip Charetor

C Type Charcteristics Curve

Frequency

50/60Hz

Terminal Block Capacity

1-16mm2

Transport Package

Export Packing

Specification

CE with standard IEC60898

Trademark

GWIEC

Origin

Wenzhou, Zhejiang, China

HS Code

8536200000

Production Capacity

50000

Key features

AC/DC Overcurrent Protection: Provides reliable protection against short circuits and overloads for AC 50Hz and DC circuits.

High Breaking Capacity: Features Icn 6ka rated breaking capacity for robust circuit safety and performance.

CE and CCC Certified: Meets international safety standards with CE and CCC certifications for global compliance.

Compact Guide Rail Design: Space-saving 80mm height and 17.5mm width design for easy DIN rail installation.

Long Service Life: Engineered for durability with 8000+ electric life and 20000+ mechanical life cycles.

Multi-Pole Configuration: Available in 1P, 2P, 3P, and 4P options to suit various single-phase and three-phase systems.

Versatile Voltage Support: Operates effectively at 230V/400V rated voltage for diverse industrial and residential applications.

IP40 Protection Grade: Offers IP40 case protection grade to prevent solid object ingress and ensure safe operation.

Company profile

Yueqing Greenwich Imp & Exp Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2017-07-19Nearest Port: ningboAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB

AI-Powered supplier vetting

SummaryYueqing Greenwich Imp & Exp Co., Ltd. is identified as a China-based manufacturer/factory and limited company located in Zhejiang, with a factory in the Qiligang/Liushi area. The supplier reports ISO 9001 certification, 10 production lines, 6–10 R&D engineers, and 6–10 quality-control staff. Listed production capacities are 90,000 contactors, 210,000 circuit breakers, 30,000 switches, and 60,000 relays. Its product scope centers on electrical components including MCCBs, MCBs, contactors, relays, starters, and circuit breakers. Export activity reportedly began in 2017, with 41%–50% of sales from exports and exports conducted directly or through agents. The records provide limited evidence on after-sales service, financial credibility, innovation, customization, and customer-case depth. Trade records show one transaction associated with a Kazakhstan buyer in February 2025, but monetary figures are omitted.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and Limited Company, with its head office and factory located in Zhejiang, China. However, another record describes the company nature as a trading company, indicating a mixed or potentially inconsistent classification across the available data.

CertificationsThe supplier reports holding ISO 9001 certification for its management systems. This is explicit evidence of a documented quality-management certification, although no certification scope, issuing body, or validity dates are provided.

R&D capabilityThe supplier reports 6–10 years of total R&D-engineer experience, and its company description mentions continuous improvement and innovation. These provide some positive indication of development capability, but no specific patents, proprietary products, R&D projects, or new-product examples are supplied.

Production capacityThe supplier reports 10 production lines, 6–10 quality-control staff, and stated annual capacities of 90,000 contactors, 210,000 circuit breakers, 30,000 switches, and 60,000 relays. The same capacity figures appear consistently across two records, and a physical factory location plus ISO 9001 certification are reported, supporting a positive assessment of production capability.

Product Q&A

Q:What is the primary function of this MCB?

The primary function is to protect electrical circuits from damage caused by overcurrent, short circuits, and overload by automatically interrupting electricity flow when a fault is detected.

Q:Can this MCB be used for both AC and DC circuits?

Yes, this MCB is designed to adapt to both AC 50Hz and DC circuits, making it versatile for various power systems.

Q:What is the rated breaking capacity of this device?

The rated breaking capacity (Icn) is 6ka, ensuring high performance in interrupting fault currents safely.

Q:How should I select the correct MCB size for my circuit?

Select an MCB based on the circuit's load requirements. It should not be rated lower than the maximum current the circuit draws, nor so high that it fails to trip during an overload.

Q:Does this MCB require regular maintenance?

MCBs generally require minimal maintenance. Periodic visual inspections for wear or damage are recommended, and testing should be done at least annually to ensure proper function.