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Toroidal / Ring Type transformer
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KCR Toroidal Ring Type Transformer Factory
70+ Years · Internationally Certified

Toroidal / Ring Type Transformer
Professional Custom Manufacturing

With 70 years of professional experience and proven solutions, KCR is trusted and designated by well-known global companies across industries worldwide.

"The details you care about — KCR cares about more than you do."
Product Details
Toroidal / Ring Type Transformer
Power Up to 3 KVA
Primary / Input Voltage Customized — Single, Dual, or Multiple voltage
230V 220V 127V 110V 100V + more
Secondary / Output Voltage Customized — Single, Dual, or Multiple voltage
Phase Single Phase
Type Toroidal / Ring Type Transformer
Frequency 50 – 60 Hz Low Frequency Transformer
Core Size
10 VA  (45×33×19 mm)
200–300 VA  (67×99×57 mm)
10–20 VA  (40×54×28 mm)
300–500 VA  (67×107×57 mm)
20–30 VA  (60×45×35 mm)
500–700 VA  (78×130×57 mm)
30–50 VA  (45×67×35 mm)
700–1,000 VA  (88×140×66 mm)
50–75 VA  (52×74×41 mm)
1,000–1,500 VA  (90×150×66 mm)
75–100 VA  (75×79×41 mm)
1,500–2,000 VA  (90×160×66 mm)
100–150 VA  (57×89×41 mm)
2,000–2,500 VA  (90×170×66 mm)
150–200 VA  (84×52×50 mm)
2,500–3,000 VA  (95×185×66 mm)
Insulation Grade Class A (105°C), B (130°C), F (155°C),
H (180°C), C (180°C↑)
Application
Traffic & Transportation Industry Medical Green Energy Audio PA System Tube Amplifier Household Appliances Precision Machinery Agriculture
Toroidal Transformer Product Photo 1 Toroidal Transformer Product Photo 2
Features
1
Low loss, low noise, low voltage fluctuation, excellent insulation grade, and low temperature rise
2
High-permeability silicon steel core sourced from a leading brand in Japan and SINOSTEEL Corporation in Taiwan
3
Enamelled wire and varnish all sourced from well-known global manufacturers
4
Over 70 years of professional OEM and ODM manufacturing experience
Quality Management Process Flow
Quality Certifications
Strict Quality Control
Strict QA & QC — incoming, in-process, and outgoing quality control at every production stage
ISO-9001 / ISO-14001 / ISO-45001 (OHSAS-18001)
Compliant with CE / UL and international safety standards
RoHS certified materials
Excellent Service
OEM and ODM manufacturing for transformers of all specifications
Turnkey / one-stop solution — SMT, PCBA, Molding injection, CNC, NCT, and more
We take on any challenge and strive to meet — and exceed — your every expectation
Full support for obtaining safety and compliance certifications
Contact Us Without Hesitation
Our engineering team is ready to provide custom quotes,
technical consultation, and fast support.
✉  contact@kcr.com.tw