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Market Tested Cost-Performance Miniature Circuit Breaker DIN Rail Design MCB 6ka
US$0.82
1,000-4,999 Pieces
US$0.79
5,000+ Pieces
Sample price:US$100.00/piece.Request sample
Product profile
Customization
AvailableBreaking Capacity
Low Voltage Circuit BreakersOperation
Manual TypeModel NO.
STM3-63Speed
Normal Type Circuit BreakerArc-extinguishing Medium
AirInstallation
FixedStructure
MCBPoles Number
4Type
Circuit BreakerFunction
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCBCertification
ISO9001-2000, CEStandard
IEC 60898.1Ue
230/400Vin
1,2,4,6,10,16,20,25,32,40,50,63AInstallation Type
DIN Rail or Busbar TypePrice
Factory PriceInside Design
C65 DesignTransport Package
Exporting CartonSpecification
240pcs/ctnsTrademark
SONTUOEC, WZSTEC, SONTUNE, IMDECOrigin
Wenzhou ZhejiangHS Code
8536200000Production Capacity
2000pieces/WeekKey features
High Breaking Capacity: Rated breaking capacity up to 6000A for effective short-circuit protection.
Wide Current Range: Available rated currents from 1A to 63A to suit various load requirements.
Multiple Poles Options: Offered in 1, 2, 3, and 4-pole configurations for flexible installation.
IEC Standard Compliance: Conforms to IEC/EN 60898-1 standard for safety and reliability.
DIN Rail Mounting: Designed for easy installation on 35mm DIN rails using fast clip devices.
Three Curve Characteristics: B, C, and D curves available for different load types and inrush currents.
Long Mechanical Life: Mechanical life up to 10000 operations for durable performance.
CE and ISO Certified: Certified with CE and ISO9001-2000 for quality assurance.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2016-01-08Nearest Port: NINGBOAverage Response Time: ≤1.67hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF
AI-Powered supplier vetting
SummaryThe supplier demonstrates broad customization, OEM/ODM service capability, in-stock capacity, and substantial stated production volumes for contactors and circuit breakers. It exports 90% of total sales, has self-operated import/export rights, serves multiple global regions, and has attended the Canton Fair. ISO9001:2015 and CE certification are reported. However, innovation evidence is limited because no new products were reported in the past year and no SDK is available. Quality and service procedures exist but lack written records, while overseas agents, branches, warehouses, and showrooms are absent. Peak-season fulfillment information is inconsistent: one slice states 2–3 months, while others state within 15 workdays or one month. Financial data is represented only by years, so credibility cannot be determined.
Supplier typeThe supplier is an export-oriented manufacturer with self-operated import/export rights, OEM and ODM capabilities, in-stock capacity, and stated production of 500,000 contactors and 1,500,000 circuit breakers. It serves multiple overseas regions but has no overseas agents, branches, warehouse, or showroom.
CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certification holdings, although no additional certification details or validity documentation are provided.
R&D capabilityThe supplier offers ODM services and multiple design customization modes, but reports no new products during the past year and no available SDK. This indicates design-service capability without sufficient evidence of recent product innovation.
Production capacityThe supplier reports annual output of 500,000 contactors and 1,500,000 circuit breakers, maintains inventory capability, and states off-peak lead times within 15 workdays in some records. However, peak-season timing is inconsistent, with records ranging from within 15 workdays or one month to 2–3 months.
Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization, and also provides OEM and ODM services, including OEM for well-known brands. This is strong direct evidence of broad customization capability.
Product Q&A
Q:What is the rated breaking capacity of this MCB?
A:
The rated breaking capacity is available in 3500A, 4500A, and 6000A options.
Q:What current ratings are available?
A:
Rated currents range from 1A to 63A, including 1, 2, 4, 6, 10, 16, 20, 25, 32, 40, 50, and 63A.
Q:Does this product support different pole configurations?
A:
Yes, it is available in 1, 2, 3, and 4-pole versions.
Q:What are the B, C, and D curve characteristics?
A:
B curve (3-5In) for low inrush, C curve (5-10In) for general use, and D curve (10-14In) for high inrush loads like transformers.
Q:How is the MCB installed?
A:
It mounts on a 35mm DIN rail using a fast clip device and supports cable or busbar connections.
Send Inquiry
*To:Wenzhou Santuo Electrical Co., Ltd.
Wenzhou Santuo Electrical Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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