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Hot Case MCCB Thermal Magnetic Circuit Molded Breaker
US$1.00-20.00
1 Piece
Product profile
Customization
AvailableBreaking Capacity
Low Voltage Circuit BreakersOperation
Electric TypeModel NO.
CM1Speed
High-Speed Circuit BreakerArc-extinguishing Medium
AirInstallation
FixedStructure
MCCBPoles Number
3 Pole;4 PoleType
Circuit BreakerFunction
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent ProtectionCertification
CE, CCCRated Current
63,125,160,200,250,400,630,800,1250,1600ADielectric Property
2500,3000VRated Current of Frame Size Inm
63,160,200,250LRated Current of The N Pole
=inRated Insulation Voltage Ui
400,500,690VUimp Rated Impulse Withstand Voltage
8000,10000VTransport Package
Export PackingSpecification
3P, 4PTrademark
GWIECOrigin
Wenzhou, Zhejiang, ChinaHS Code
8536200000Production Capacity
50000Key features
High Breaking Capacity: Ultimate breaking capacity up to 75KA for reliable short-circuit protection.
Versatile Installation: Supports vertical and horizontal installation with front, rear, and plug-in connections.
Wide Voltage Range: Rated insulation voltage up to 690V for versatile distribution line applications.
Multi-Pole Options: Available in 3 Pole and 4 Pole configurations to suit different circuit needs.
Dual Certification: Meets CE and CCC standards, ensuring compliance with international safety norms.
Compact Design: Small size with high breaking capacity and short arcing for efficient space usage.
Motor Protection: Suitable for infrequent motor starting with overload and short-circuit protection.
Customizable Ratings: Rated current customizable from 6A to 1600A to fit specific project requirements.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-07-19Nearest Port: ningboAverage Response Time: ≤10.41hTerms 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 rated insulation voltage?
A:
The rated insulation voltage is up to 690V, with the 630 type rated at 500V.
Q:What are the available pole configurations?
A:
The circuit breakers are available in 3 Pole and 4 Pole configurations.
Q:What certifications does the product have?
A:
The product meets CE and CCC certification standards.
Q:What is the maximum breaking capacity?
A:
The ultimate short circuit breaking capacity can reach up to 75KA depending on the model.
Q:Can the installation orientation be changed?
A:
Yes, the products can be installed both vertically and horizontally.
Send Inquiry
*To:
Yueqing Greenwich Imp & Exp Co., Ltd.
Yueqing Greenwich Imp & Exp Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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