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Sts3 100A Module Case Circuit Breaker Overload Protection MCCB
US$18.00
100-499 Pieces
US$17.80
500+ Pieces
Sample price:US$100.00/bag.Request sample
Product profile
Customization
AvailableBreaking Capacity
Low Voltage Circuit BreakersOperation
Electric TypeModel NO.
STS3Speed
Normal Type Circuit BreakerArc-extinguishing Medium
AirInstallation
FixedStructure
MCCBPoles Number
3Type
Circuit BreakerFunction
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent ProtectionCertification
CEStandard
IEC 60947-2 GB14048.2Coil Voltage
AC 400(380)V AC690(660)Vin
63,100,225,630APole
3p4pTransport Package
Inner Box/CartonSpecification
3P: 1200ATrademark
SONTUOEC, WZSTEC, STOUEC, SONTUNEOrigin
Wenzhou ZhejiangHS Code
8536200000Production Capacity
6000pieces/WeekKey features
High Breaking Capacity: Up to 70kA ultimate short circuit breaking capacity for reliable protection.
Wide Current Range: Available in rated currents from 63A to 630A with multiple frame sizes.
IEC and GB Compliant: Meets IEC 60947-2 and GB14048.2 standards for safety and performance.
Versatile Pole Options: Supports 2P, 3P, and 4P configurations for diverse circuit needs.
Long Product Life: Designed for reliability with high endurance and long service life.
Air Arc Extinguishing: Utilizes air as the arc-extinguishing medium for safe operation.
Fixed Installation: Optimized for fixed installation in power distribution systems.
Multi-Function Protection: Provides overload, short circuit, and failure protection for electrical equipment.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2016-01-08Nearest Port: NINGBOAverage Response Time: ≤1.91hTerms 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 voltage range?
A:
The circuit breaker supports AC 50HZ/60HZ with a rated voltage up to AC 660V.
Q:What are the available current ratings?
A:
Rated operating currents range from 63A to 630A, including specific models like 100A, 225A, and 630A.
Q:Does it support customization?
A:
Yes, standard options include IEC 60947-2 and GB14048.2, with coil voltages of AC 400V or AC 690V.
Q:What is the maximum breaking capacity?
A:
The ultimate short circuit breaking capacity reaches up to 70kA depending on the specific model.
Q:What certifications does it hold?
A:
The product is CE certified and complies with international standards IEC 60947-2 and GB14048.2.
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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