What testing processes are performed on the transformers?

Testing includes no-load, inductive voltage, load, temperature rise, insulation resistance, hi-pot, leakage inductance, DC resistance, and surface inspection.

What are the main applications for this transformer?

It is used for UPS, audio equipment, electric control, computers, solar devices, telecommunications, and video equipment.

What is the frequency characteristic of the transformer?

The transformer operates at 50Hz or 60Hz and is designed for low-frequency applications.

Step Down Transformer 380V to 220V Single Phase Toroidal Transformer

Name: Step Down Transformer 380V to 220V Single Phase Toroidal Transformer
Brand: Shenzhen Okerda Technology Co., Ltd.
SKU: 896866055

Guangdong, ChinaShenzhen Okerda Technology Co., Ltd.

US$5.00-35.00

100 Pieces

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio, UPS

Phase

Single

Model NO.

Toroidal Transformer

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Auto-transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

Single-phase Transformer, Rectifier Transformer, Power Transformer, UPS Transformer

Frequency Characteristics

Low Frequency

Shape of Core

Ring

Brand

Okerda

Transformer for Equipment

Low Rise High Efficiency Toroidal Transformer

Transformer Type

Toroidal/Ring Transformer

Transformer Voltage

12V 15V 24V 220V 230V

Isolating Transformer

Waterproof Transformer

Transformer Quality

High Quality Transformer

Transport Package

Carton on Pallet

Specification

core and copper

Trademark

Okerda Toroidal Transformer

Origin

China

HS Code

8504319000

Production Capacity

300000PCS/Month

Key features

Customizable Input & Output: Input and output voltages are fully customizable to meet specific equipment needs.

Wide Power Range: Available in power ratings from 120VA to 3000VA for diverse applications.

High Efficiency Design: Features low no-load losses, low mechanical hum, and low magnetic leakage.

Comprehensive Certifications: Certified by UL, CE, RoHS, CQC, ISO9001, ISO14001, and ISO45001.

OEM & ODM Services: Full customization options available from samples, designs, or flexible requirements.

20 Years Experience: Manufacturer with two decades of expertise in transformer and inductor production.

Rigorous Testing Process: Includes no-load, load, temperature rise, hi-pot, and insulation resistance tests.

Flexible Delivery: Off-season lead time within 15 workdays; peak season within one month.

Company profile

Management CertificationStandardized quality controlImporters and ExportersProduction Process Visualization

Shenzhen Okerda Technology Co., Ltd.

Guangdong, 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.Export Year: 2005-12-02Nearest Port: SHENZHEN, Guangzhou, ShanghaiAverage Response Time: ≤3.68h

AI-Powered supplier vetting

SummaryShenzhen Okerda Technology Co., Ltd. is identified as both a trading company and manufacturer/factory in Shenzhen, China, supplying electronic components including transformers, inductors, power supplies, Litz wire, motors, UPS products, adapters, and chargers. It reports more than 10 production lines, exports to a broad range of global markets, and has exported since 2005, with exports representing 71%–90% of total sales. ISO 9001 and ISO 14001 certifications are stated, while the company background also references ISO 45001. The supplier states that OEM orders are welcome and describes custom production of transformers and inductors. However, many operational, service, traceability, audit-result, and customer-reference fields are marked unknown, limiting verification of several capabilities.

Supplier typeThe supplier is described as a trading company in its company profile and as both a trading company and manufacturer/factory in its entity classification. Its Shenzhen address and stated manufacturing activities support a mixed trading-and-manufacturing profile.

CertificationsISO 9001 and ISO 14001 are explicitly listed, and the company background additionally states ISO 45001 certification. An SGS audit is recorded with a validity period from April 8, 2025 to April 7, 2026, but the audit evaluation result is coded as “0,” so the detailed audit outcome cannot be interpreted from the provided data.

Production capacityThe supplier reports more than 10 production lines, off-peak lead times within 15 working days, and peak-season fulfillment within one month. Its classification as both trading company and manufacturer/factory supports production involvement, although actual capacity and output figures are not independently verified here.

Customization capabilityThe company states that it offers custom production of transformers and inductors and welcomes OEM orders. This is direct evidence of customization and OEM willingness for at least these product categories.