What payment terms are accepted?

Accepted payment terms include LC, T/T, D/P, and PayPal.

Does the product include an auxiliary contact block?

Yes, the product comes with an auxiliary contact block.

What is the maximum insulation voltage?

The rated insulation voltage is 660V.

Electrical Thermal Overload Relay 60Hz Sth -40 with Auxiliary Contact Block

Name: Electrical Thermal Overload Relay 60Hz Sth -40 with Auxiliary Contact Block
Brand: Wenzhou Santuo Electrical Co., Ltd.
SKU: 851542295

Zhejiang, ChinaWenzhou Santuo Electrical Co., Ltd.

US$2.25

100-499 Pieces

US$2.15

500-999 Pieces

US$1.95

1,000+ Pieces

Sample price:US$100.00/bag.Request sample

Product profile

Customization

Available

Theory

Thermal Relay

Usage

Car Relay, Household Appliances Relay, Communication Relay, Lathe Relay

Model NO.

STH

Phase

Electricity Type

Number of Pole

Load

Weak Power Relay

Protective Characteristics

Open Relay

Action Principle

Electromagnetic Type

Size

Miniature

Type

Electric Parameter Relay

Standard

IEC 60947-1

Coil Voltage

24,220,240,380,415V

Rated Current

0.63-500A

Frequency

50Hz/60Hz

Transport Package

Carton

Specification

50PCS/CTN

Trademark

SONTUOEC, WZSTEC

Origin

Wenzhou Zhejiang

HS Code

85364900

Production Capacity

3000pieces/Week

Key features

IEC 60947 Compliance: Products strictly comply with IEC 60947-1 and IEC 60947-4 international standards.

Wide Current Range: Rated current spans from 0.1A to 93A across multiple models for diverse applications.

Temperature Compensation: Advanced mechanism includes temperature compensation for stable performance.

Auxiliary Contact Block: Comes with an auxiliary contact block for enhanced circuit control capabilities.

Plug-in Design: Mechanism can be plugged directly into ST1 series AC contactors for easy installation.

Multi-Voltage Coil: Coil voltage options include 24V, 220V, 240V, 380V, and 415V.

Long Product Life: Designed for reliability and long service life with quality assurance.

Global Market Reach: Exporting to South America, Europe, Asia, Africa, and the Middle East since 2016.

Company profile

Wenzhou Santuo Electrical Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2016-01-08Nearest Port: NINGBOAverage Response Time: ≤1.63hTerms 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.