What standards does the product conform to?

This product conforms to IEC60898 standard and holds CE certification.

What is the electro-mechanical endurance?

The electro-mechanical endurance is over 6000 cycles.

6ka 4p Miniature Circuit Breaker MCB B, C, D Curve

Name: 6ka 4p Miniature Circuit Breaker MCB B, C, D Curve
Brand: Wenzhou Santuo Electrical Co., Ltd.
SKU: 851555195

Zhejiang, ChinaWenzhou Santuo Electrical Co., Ltd.

US$0.54

20,000-49,999 Pieces

US$0.53

50,000+ Pieces

Sample price:US$100.00/bag.Request sample

Product profile

Customization

Available

Breaking Capacity

Low Voltage Circuit Breakers

Operation

Electric Type

Model NO.

STM4-63

Speed

Normal Type Circuit Breaker

Arc-extinguishing Medium

Air

Installation

Fixed

Structure

MCB

Poles Number

Type

Circuit Breaker

Function

Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB

Certification

Standard

IEC 60898

Ue

230/400V

in

1,2,4,6,10,16,20,25,32,40,50,63A

Pole

1p2p3p4p

Transport Package

Exporting Carton

Specification

240pcs/ctns

Trademark

SONTUNE

Origin

Wenzhou Zhejiang

HS Code

8536200000

Production Capacity

2000pieces/Week

Key features

High Breaking Capacity: Supports 3KA, 4.5KA, and 6KA rated short-circuit capacity for robust protection.

Multiple Tripping Curves: Available in B, C, and D curves to suit various load requirements.

Wide Current Range: Rated current options from 1A to 63A for diverse application needs.

IEC 60898 Certified: Conforms to IEC60898 standard with CE certification for safety and quality.

Versatile Installation: Fixed installation structure suitable for industry, commercial, and household use.

Comprehensive Protection: Provides overload, short-circuit, overcurrent, and overvoltage protection.

High Durability: Electro-mechanical endurance exceeds 6000 cycles for long-term reliability.

Factory Direct Supply: Direct from manufacturer with over 20 years of industry experience.

Company profile

Wenzhou Santuo Electrical Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2016-01-08Nearest Port: NINGBOAverage Response Time: ≤1.46hTerms 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.