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Product profile
Customization
AvailableBreaking Capacity
Low Voltage Circuit BreakersOperation
Electric TypeModel NO.
CSM9LZSpeed
High-Speed Circuit BreakerArc-extinguishing Medium
Oil-immersed TypeInstallation
FixedStructure
MCBPoles Number
2Type
Circuit BreakerFunction
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCBCertification
VDE, ISO9001-2000, CE, CB, CCCTransport Package
Standard Export PackingSpecification
86Trademark
ChangsongOrigin
Zhejiang, ChinaProduction Capacity
50000PCS/YearKey features
Smart Auto Reclosing: Automatically recloses after residual current, under/over voltage, or phase failure events.
Real-time Monitoring: Features real-time display of load current, phase voltage, residual current, and fault inquiries.
Comprehensive Protection: Provides short-circuit, over-current, residual current, phase failure, and overvoltage protection.
High Breaking Capacity: Offers up to 70kA breaking capacity for 400/630A frames, ensuring robust circuit safety.
Flexible Customization: Allows customization of rated residual operation currents for various frame sizes.
Multi-Standard Certified: Certified by VDE, ISO9001, CE, CB, and CCC, conforming to GB14048.2 standards.
Wide Application Range: Suitable for AC 50Hz, 800V insulation voltage, and 40A-630A rated current distribution.
Precision Electronic Control: Electronic type allows adjustable current settings with high accuracy for overload protection.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤5.52h
AI-Powered supplier vetting
SummaryThe supplier operates as a combined company with a broad business scope covering plumbing equipment, cable ties, lamps, household appliances, measuring equipment, decoration materials, and related manufacturing, processing, sales, and import/export activities. It reports ISO9001, ISO14001, OHSAS18001, CB, SEMKO, and CE certifications, although the information is presented as a company description rather than supported by certificate details. The supplier offers extensive customization and ODM services, but reports no new products in the past year and no available SDK. It has inventory capability and states peak- and off-season lead times within 15 working days, but lacks a valid manufacturing contract with associated subcontractors, overseas warehouses, overseas showrooms, overseas agents or branches, and serves zero stated overseas countries. After-sales and supplier-service controls lack written procedures or records. Financial credibility and customer cases cannot be sufficiently assessed from the...
Supplier typeThe supplier is identified as a combined company and reports a broad scope spanning manufacturing, processing, sales, household appliances, plumbing equipment, cable ties, lamps, measuring equipment, decoration materials, and import/export activities. This supports classification as a diversified operating manufacturer and trader, but the slices do not define its precise legal structure beyond “Combined.”
CertificationsThe company description states that Changsong obtained ISO9001, ISO14001, OHSAS18001, CB, SEMKO, and CE certifications. These stated certifications are positive evidence of quality, environmental, occupational-safety, and product-compliance coverage, although no certificate numbers, validity dates, or issuing-body records are provided.
After-Sales capabilityThe supplier has inventory capability and accepts multiple quotation and payment terms, with stated lead times within 15 working days in both peak and off-season. However, it has no written customer-complaint procedures or records, no written corrective/preventive-action procedures or records, no written supplier-service assessment procedures or records, no overseas warehouse, showroom, agent, or branch, and states zero countries with overseas services.
R&D capabilityThe supplier reports no new products in the past year and no available SDK, which limits evidence of recent product innovation and software-development capability. Conversely, it offers ODM services and uses ERP, OA, CRM, and SAP systems, indicating process digitization and some development-service infrastructure, but not sufficient evidence of strong innovation output.
Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad customization coverage.
Product Q&A
Q:What are the main protection functions of this MCCB?
A:
It provides short-circuit, over-current, residual current, phase failure, off-zero, and special wave protection, along with overvoltage protection.
Q:Can the residual operation current be customized?
A:
Yes, we can customize any of the four types (75mA, 150mA, 300mA, 500mA) for 100/250 frames, and (100mA, 150mA, 300mA, 500mA) for 400/630 frames.
Q:What is the rated insulation voltage and current range?
A:
The rated insulation voltage is up to 800V, and the rated current ranges from 40A to 630A depending on the frame size.
Q:Does the device support auto-reclosing after a fault?
A:
Yes, it has an auto-reclosing function that activates after residual current, under-voltage, overvoltage, or phase failure events.
Q:What certifications does this circuit breaker have?
A:
It is certified by VDE, ISO9001-2000, CE, CB, and CCC, and conforms to the GB14048.2 standard.
Send Inquiry
*To:
Changsong Electric Co., Ltd.
Changsong Electric Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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