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220V 12V Toroidal Power Transformer

(1.3)
Supplier From China
Oct-29-15

? Round shape with no air gaps
? Uniform primary and secondary windings locked in the magnetic field makes these transformers very quiet and efficient.
? Compact designing, efficiency, quiet and safer
? Smaller dimensions, lighter weight, and low stray magnetic fields
We specialize in manufacturing of above products as per customer specifications.



Carton in pallet

Price and Minimum Quantity

Price: $20
MOQ: Not Specified
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Model NO.: 50VA-5000VA GWB140321 Usage: Single-phase Transformer Frequency Characteristics: Power Frequency Shape of Core: Ring Brand: Grewin Toroidal Transformer Power: 50va-5000va: Universal Purpose Low No-Load Losses: Low Mechanical Hum Low Magnetic Leakage: High Efficiency Power Factor: 0.9 to 0.98: Encapsulated by Iron Shell: CE, RoHS, SGS, Cesi a Horizontal: Sunk, Side Type, and Bridge: Phase: Single Brand Name: Gw: Place of Origin: Tianjin, China (Mainland) Trademark: Grewin Toroidal Transformer Transport Package: Carton Specification: CE, RoHS, SGS, CESI and ISO9001 Origin: Tianjin HS Code: 85043190
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1. Technical parameters.

Toroidal Transformer I
Power Thermal Fuse Current Fuse Dimension (mm) Approval Mark
GWB25VA 135 ºC 250V 2A 250V T 2A 80*35 CE UL TUV CQC
GWB30VA 135 ºC 250V 2A 250V T 2A 83*35 CE UL TUV CQC
GWB40VA 135 ºC 250V 2A 250V T 2A 87*35 CE UL TUV CQC
GWB50VA 135 ºC 250V 2A 250V T 2A 93*34 CE UL TUV CQC
GWB60VA 135 ºC 250V 2A 250V T 2A 93*35 CE UL TUV CQC
GWB80VA 135 ºC 250V 2A 250V T 2A 102*35 CE UL TUV CQC
GWB105VA 135 ºC 250V 2A 250V T 2A 114*38 CE UL TUV CQC
GWB120VA 135 ºC 250V 2A 250V T 2A 113*41 CE UL TUV CQC
GWB140VA 135 ºC 250V 2A 250V T 2A 114*42 CE UL TUV CQC
GWB150VA 135 ºC 250V 2A 250V T 2A 117*43 CE UL TUV CQC
GWB160VA 135 ºC 250V 5A 250V T 5A 120*43 CE UL TUV CQC
GWB180VA 135 ºC 250V 5A 250V T 5A 125*42 CE UL TUV CQC
GWB200VA 135 ºC 250V 5A 250V T 5A 124*49 CE UL TUV CQC
GWB220VA 135 ºC 250V 5A 250V T 5A 127*50 CE UL TUV CQC
GWB240VA 135 ºC 250V 5A 250V T 5A 129*48 CE UL TUV CQC
GWB250VA 135 ºC 250V 5A 250V T 5A 130*52 CE UL TUV CQC
GWB260VA 135 ºC 250V 5A 250V T 5A 130*53 CE UL TUV CQC
GWB280VA 135 ºC 250V 5A 250V T 5A 138*45 CE UL TUV CQC
GWB300VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC
GWB320VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC
GWB340VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC
GWB360VA 135 ºC 250V 5A 250V T 10A 142*55 CE UL TUV CQC
GWB380VA 135 ºC 250V 5A 250V T 10A 146*54 CE UL TUV CQC
GWB400VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC
GWB420VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC
GWB440VA 135 ºC 250V 5A 250V T 10A 148*60 CE UL TUV CQC
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GWB480VA 135 ºC 250V 5A 250V T 10A 153*59 CE UL TUV CQC
GWB500VA 135 ºC 250V 5A 250V T 10A 155*62 CE UL TUV CQC


2. We have attained VDE,UL,CE,ISO9000 approval .we guarantee quality is the first.
Test process
1 .No-load test (included no-load voltage,no load current and no load loss)

2.iInductive voltage test

3. Load test (load voltage and temperature rise

4. Temperature rise test .

5.Insulated resistance

6.Hi-pot test

7.Leakage inductance test

8.DC resistance test

9.Surface inspection.

3.customized audio toroidal transformer and solar energy transformer Application:
220V 24V Toroidal Power Transformer

1). Application:

1. audio equipment
2. electric control
3. computer
4. solar device
5.telecommunications
6.high-end and middle-end vedio etc

2). Advantages:

1.High quality 100% copper core

2.a full range of toroidal transformer
3.Specially sales and technical services:5-10Years

4.With 14 years' producing history in transformer industry

5.our company have cooperated with many customers around the world and gained good reputation at home and abroad.
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(Click here for Customized Design And Interactive Design Service)
Single-phase toroidal transformers, power range
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Designed as a safety isolating transformer with
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Short circuit and overload protected with
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Technical specifications
Input voltage: Customized
Frequency: 50-60Hz
Output voltage: Customized
According to: EN61558
Test/insulating voltage: 4kV AC RMS
Construction class: II



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4.Low noise
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7.High reliability
8.Flexible connection
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