What is your production capacity?

We have stable production capability with strict quality control to ensure fast and reliable delivery.

How long is the delivery time?

Standard products are usually shipped within 5-7 working days. Large or customized orders depend on order quantity and specifications.

Do you provide technical support after sales?

Yes. We provide professional technical support and after-sales service for all customers worldwide.

Can your products be used in photovoltaic (PV) systems?

Yes. We provide dedicated PV surge protection devices specially designed for solar power systems.

Why choose Nanjing Yihua Technology?

* Professional SPD manufacturer * Strict quality management system * International certifications * OEM/ODM support * Competitive pricing * Fast global delivery * Reliable technical support

Wsd-A25 Modular Design AC Low Voltage Surge Arrester Protection Device

Name: Wsd-A25 Modular Design AC Low Voltage Surge Arrester Protection Device
Brand: Nanjing Yihua Technology Co., Ltd.
SKU: 2301638765

Jiangsu, ChinaNanjing Yihua Technology Co., Ltd.

US$14.60

1 Piece

Product profile

Customization

Available

Type

Power Source Arrester

Structure

Modular

Model NO.

WSD-A25

Installation

Parallel Arrester

Application

Power Plants

Size

Small

Operation Voltage

Low Voltage

Shape

Cuboid

Material

Thermoplastic Plastics

Certification

ROHS, CE

Brand

Tsotw

Impulse Discharge Current (Ka)

Nominal Discharge Current (Ka)

Maximum Discharge Current (Ka)

100

Certificate

CE/RoHS

Protected Mode

1p/1p+N/2p/3p/3p+N/4p

Response Time

25ns

Enclosure Protection Class

IP 20

Canning Material

Flame Retardant Grade UL94-V0

Way to Install

35 mm DIN Guide Rail

Alarm Method

Indicator Window + Remote Signaling (Optional)

Operating Temperature

-40℃ to +80℃

Elevation

-500 to 5000m

Testing Standard

IEC/ En 61643-11 (Type 1+ Type 2/T1+T2/Class B)

Transport Package

Standard Export Carton / Neutral Packing

Trademark

TSOTW

Origin

China

HS Code

8536300000

Key features

Dual-Mode Protection: Type 1+ Type 2 protection for lightning and surge voltage in low-voltage and solar systems.

High Discharge Capacity: Impulse current up to 25kA, nominal 50kA, and maximum 100kA for robust protection.

Ultra-Fast Response: Response time of 25ns ensures immediate protection against voltage spikes.

Wide Voltage Compatibility: Supports system voltages from 110V to 1140V across various protected modes.

Durable Flame Retardant: Enclosure made of thermoplastic plastics with UL94-V0 flame retardant grade.

Flexible Installation: Designed for 35mm DIN guide rail installation with IP20 protection class.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Nanjing Yihua Technology Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.06h

About Our Factory & Business Background

AddressNanjing, Jiangsu, China

Plant Area1713 square meters

Number of Employees16

Registered Capital51,000,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Small-amount payment, Western Union

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Set

Supply Chain Partners15

Our Production Capability & Technical Expertise

Main ProductsSurge Protective Devices

Production Lines2

Production MachinesAutomatic welding machine, Marking machine, Plastic sealing machine, Through functional tester

QA/QC inspectors3 people

Inspection Type for Finished ProductsRandom inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers4 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2004-08-17

Main MarketsDomestic

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff2

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO45001:2018

Product CertificationOthers

Cooperated with Fortune 500No

Product Q&A

Q:Can I get samples before placing a bulk order?

Yes. Sample orders are available for quality evaluation and testing.

Q:Do you provide OEM & ODM services?

Yes. We support OEM and ODM customization, including logo printing, packaging, and product design.

Q:What certifications do your products have?

Our products are certified by CE, CQC, TUV, UL and comply with international safety standards.

Q:What applications are your surge protection devices suitable for?

Our SPDs are widely used in solar energy systems, communication networks, industrial automation, rail transit, commercial buildings, and power distribution systems.

Q:How do I choose the correct surge protector model?

Please provide your system voltage, installation environment, and application requirements. Our technical team will recommend the most suitable model.