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Home > Toroidal Transformer > Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
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Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals
Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals

Tianjin Grewin High Effiiency Versatile 110va 125va 350va 850va Toroidal Transformer with ISO9001: 2015 IEC CB Approvals

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Product Description

🔹 Basic Specifications
Model NO.
GWB2348 etc.
Core
Toroid Core
Cooling Method
Dry-type Transformer
Winding Type
Auto-transformer
Certification
ISO9001-2000, ISO9001, CCC, CE
Usage
Audio Device, Amplifier, DVD, Loudspeaker
Frequency
High Frequency
Shape of Core
Ring
Coil Material
High Flux Density Grain-Oriented Silicon Steel
Voltage Design
Customized
HS Code
85043190
Capacity
50000 PCS
📜 Quality Assurance & Certifications

We have passed ISO9001:2015, CE, SGS approval and IEC report. Quality and Honesty are our core business philosophies.

Certification
Quality Report
📊 Technical Parameters
Power Input Voltage(V) Output Voltage(V) Dimension OD*H(mm) Weight (kg)
GWB50VA220V (230V)12V80*380.74
GWB100VA220V (230V)12V95*451.25
GWB200VA220V (230V)12V112*522.05
GWB500VA220V (230V)12V140*654.2
GWB1000VA220V (230V)12V170*757.2
GWB3000VA220V (230V)12V200*12016.6
GWB5000VA220V (230V)12V230*13524
⚙️ Toroidal Transformer Performance
Model Dimension (mm) Efficiency % Current Weight
GWB20VA60*25>8210mA0.45kgs
GWB100VA85*60>9030mA1.50kgs
GWB500VA130*80>94150mA5.00kgs
GWB1000VA140*85>95300mA8.50kgs
GWB2000VA180*90>95400mA15.0kgs
GWB6000VA250*95>95500mA25.0kgs
Toroidal Transformer Product
Toroidal Transformer Detail
✅ Strict Test Process
  • No-load test (voltage, current, and loss)
  • Inductive voltage test
  • Load test (voltage and temperature rise)
  • Temperature rise test
  • Insulated resistance test
  • Hi-pot test
  • Leakage inductance test
  • DC resistance test
  • Surface inspection
🚀 Applications & Advantages
Application scenarios

Primary Applications:

  • Audio equipment & Loudspeakers
  • Electric control & Computers
  • Instruments & Telecommunications
  • High-end Video equipment

Key Advantages:

  • High quality 100% copper core
  • Full range of toroidal transformers
  • Over 14 years of industry manufacturing history
  • High efficiency (up to 98%)
🏭 Production & Packaging

All finished products are processed through a professional production line and packed with export standard cartons and strong pallets.

Production line and package
❓ Frequently Asked Questions
1. What materials are used in the core of the transformer?
The transformers use a Ring-shaped Toroid Core made of High Flux Density Grain-Oriented Silicon Steel and high-quality 100% copper.
2. Can the input and output voltages be customized?
Yes, we can design and manufacture appropriate products according to specific customer requirements, including installation dimensions, input voltage, output voltage, and power.
3. What is the efficiency range of these toroidal transformers?
Depending on the model and design, the efficiency typically ranges from 75% to 98%.
4. What certifications have these products obtained?
The products have obtained various certifications including ISO9001:2015, CE, SGS approval, CCC, and IEC reports.
5. What is the typical lead time for production?
According to our trading flow, factory production and quality inspection generally take between 15 to 20 days.
6. What tests are performed to guarantee quality?
We conduct a comprehensive 9-step testing process including no-load tests, load tests, temperature rise tests, Hi-pot tests, and DC resistance tests.

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