Is customization available for this product?

Yes, we offer customization from samples, customization from designs, full customization, minor customization, and flexible customization.

What certifications does the company hold?

The company has obtained ISO 9001 Quality Management System certification and international approvals including CE, CB, UL, ETL, and CCC.

20kv 1250kVA Amorphous Toroidal Transformer

Name: 20kv 1250kVA Amorphous Toroidal Transformer
Brand: Wenzhou Yuanda Electrical Equipment Co., Ltd.
SKU: 2257967395

Zhejiang, ChinaWenzhou Yuanda Electrical Equipment Co., Ltd.

US$1,000.00

1 Box

Product profile

Customization

Available

Type

Distribution Metering Box

Structure

Fixed Board

Model NO.

SH16-1250

Certification

ISO9001:2000, VDE, CCC

Form

Partly-welded Type

Operation Voltage

High Voltage

Size

3 Uint

Application Range

High-rise Buildings

Shell Material

Stainless Steel

Shell Protection Grade

IP56

Brand

Yuanda

Standard πConfiguration

≤125kVA

Extra π Configuration

160-500kVA

Rated Voltage

33kv

Rated Current

630A

Frequency

50Hz

Rated Capacity

50-2500kVA

Pfr Withstand

42/50/70/95tkv

Bil

75/125/170/185kv

Crust Protection Grade

IP 23

Oil Type 55;Dry Type 65

Noisy Grade

Appearance Dimensions

According to Primacy Wiring Circuit Schema

LV Equipment

Less Than 4000

Transformer

3/75~150/3750

Capacity

Under 2500kVA.

Transport Package

Wooden

Specification

100x150x120

Trademark

yuanda

Origin

China

HS Code

8504231100

Production Capacity

100, 000PCS/Year

Key features

IP65 Customized Protection: Indoor IP54 standard with optional IP65 customized ingress protection for harsh environments.

High Withstand Current: Supports 50kA short-time withstand current for 1 second, ensuring robust electrical safety.

Full Customization Options: Offers full customization from samples, designs, and flexible minor customization services.

International Certifications: Certified with ISO 9001, CE, CB, UL, ETL, and CCC for global market compliance.

IEC and GB Standards: Complies with IEC 61439-1/2 and GB7251.1 standards for high-quality electrical performance.

32 Years Export Experience: Established in 1993 with 32 years of export experience and mature manufacturing capabilities.

100% Product Inspection: Every finished product undergoes 100% visual and functional inspection before packing.

Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments for convenience.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceIn-stock Capacity

Wenzhou Yuanda Electrical Equipment Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 32 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWenzhou Yuanda Electrical Equipment Co., Ltd. is a China-based manufacturer established in 1993, with 280 employees, more than 10 production lines, 50 quality-control staff, and stated output capacities for voltage stabilizers, miniature circuit breakers, and AC contactors. The supplier reports ISO 9001:2015 certification and product certifications including UL, CE, and 3C, as well as design patent technology. Its stated processes include advanced design software, testing equipment, and controls from raw-material procurement through finished products. However, the available information does not verify contract manufacturing, inventory, overseas services, ODM/OEM, SDK, environmental, or fire-drill capabilities. No customer cases or financial-strength evidence is provided. The audit record identifies TUV Rheinland and a valid report period, but the audit result is recorded as “0” without an explained interpretation.

Supplier typeThe supplier is explicitly identified as a manufacturer and a limited company located in Zhejiang, China. It has operated since 1993, supporting classification as an established manufacturing supplier.

CertificationsThe supplier reports ISO 9001:2015 certification and product certifications including US UL, EC CE, and 3C; it also states that it has held an industrial production permit and received export-advanced-enterprise recognition for three consecutive years. A TUV Rheinland audit report is listed with dates from November 4, 2025 to November 3, 2026, although the recorded audit result of “0” is not explained.

After-Sales capabilityThe supplier states that its marketing center provides comprehensive pre-sale, in-sale, and after-sale service to customers worldwide. However, overseas warehouse, showroom, and overseas agent or branch capabilities are all marked unknown, so the depth and delivery model of after-sales support cannot be fully verified.

R&D capabilityThe supplier reports using PROE/CAD and other design software, integrating decades of low-voltage electrical manufacturing experience, and holding product design patent technology. ODM, SDK, private-mold, 3D-design, and new-product R&D capabilities are marked unknown, limiting confirmation of broader innovation services.

Production capacityThe supplier reports more than 10 production lines, 50 quality-control staff, and stated annual capacities of 1,000,000 voltage-stabilizer boxes, 5,000,000 miniature circuit-breaker boxes, and 2,000,000 AC-contactor bags. It also describes testing equipment and process controls from raw-material procurement through finished production, providing explicit evidence of substantial production and quality-control infrastructure.

Product Q&A

Q:What is the main function of a power transformer?

The core function of a power transformer is to change the voltage level of alternating current (AC) in power systems. It can step up low voltage to high voltage for long-distance power transmission (reducing line loss) or step down high voltage to low voltage for industrial production and residential use. Meanwhile, it ensures electrical isolation between the input and output circuits to improve system safety.

Q:What are the common types of power transformers classified by cooling method?

Power transformers are mainly divided into two categories based on cooling methods: Oil-immersed transformers: The core and windings are immersed in insulating oil, which achieves cooling and insulation effects. They are widely used in outdoor power grids, with advantages of large capacity and low cost. Dry-type transformers: Insulating materials (such as epoxy resin) are used for encapsulation. They feature high fire resistance, low noise, and are suitable for indoor scenarios like high-rise bu

Q:What is the minimum order quantity?

The minimum order quantity is 1 Pc.

Q:What are the payment terms accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

Q:What is the average lead time for production?

The average lead time is within 15 workdays for both peak season and off-season.