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Sontuoec St1-40 Surge Lightning Protection Device SPD
US$2.95
2,000-4,999 Pieces
US$2.65
5,000+ Pieces
Sample price:US$100.00/bag.Request sample
Product profile
Customization
AvailableBreaking Capacity
Low Voltage Circuit BreakersOperation
Electric TypeModel NO.
ST1-40Speed
Normal Type Circuit BreakerArc-extinguishing Medium
AirInstallation
FixedStructure
SPDPoles Number
4Type
SPDFunction
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)Certification
CEStandard
IEC 61643Ue
230/400VImax
40kaPole
1p 2p 3p 4pInstallation Type
DIN RailTransport Package
Exporting CartonSpecification
120pcs/ctnsTrademark
SONTUOEC, WZSTECOrigin
Wenzhou ZhejiangHS Code
8536300000Production Capacity
2000pieces/WeekKey features
High Surge Capacity: Features a 40kA maximum discharge current for robust lightning and surge protection.
Ultra-Fast Response: Response time is less than 25 nanoseconds, ensuring immediate protection.
High Voltage Tolerance: Designed for 1500V AC systems, suitable for high-power photovoltaic energy storage.
Visual Status Indication: Green for OK and Red for defect, allowing for easy one-glance inspection.
Safety Certification: Housing material meets UL 94 V-0 flame retardant standard and holds CE certification.
Easy Installation: Standard 35mm DIN rail mounting design for quick and error-free replacement.
OEM Support: Custom logo and packaging available for orders with sufficient quantity.
Company profile

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.
Product Q&A
Q:What are the payment terms?
A:
We accept TT, with a 30% deposit and 70% balance against the copy of the Bill of Lading.
Q:What is the delivery time?
A:
Production usually takes about 25 days. Peak season lead time is 1-3 months, while off-season is within 15 workdays.
Q:What is the standard packaging?
A:
Normally packed in cartons, but we can also pack according to your specific requirements.
Q:Do you accept OEM with our logo?
A:
Yes, if the order quantity is sufficient, we can certainly do OEM for you.
Q:Can I take samples before ordering?
A:
Yes, we support taking samples before placing an order. Please feel free to contact us with any requirements.
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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