12V 220V 50va Dry Type Ring Transformer for Audio Amplifiers

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Single
• Model NO.: 50VA-5000VA GWB140321
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Separated Winding Transformer
• Certification: ISO9001-2000
• Usage: Power Transformer
• Frequency Characteristics: Low Frequency
• Shape of Core: Ring
• Brand: Grewin
• Dual 110V UL Approval: Toroidal Transformer
• CE Toroidal Transformer for Lighting: Minature 30va Max 5000va
• Transformer for Medical Equipment: Low Rise High Efficiency
• Small Size and Light Weight: 95% Efficiency
• Power Factor: 0.9 to 0.98: Used New Energy Areas
• Copper, Aluminum: Toroidal Transformer
• Encapsulated by Iron Shell: CE, RoHS, SGS, UL and ISO9001
• Mounting Type: Horizontal Sunk, Side Type, and Bridge Installatio
• Good Shielding Performance: Low Power Loss
• Type: Waterproof Toroidal Transformer
• Transport Package: Export Standard Carton with Strong Pallet
• Specification: CE, UL, ROHS
• Trademark: GW
• Origin: Tianjin
• HS Code: 85043190
• Production Capacity: 100000PCS/Month

Product Description

1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first:
The dimension of the 12v 220v 50va dry type ring Transformer for audio  amplifiers
 The Partial List of GW-B  Series Toroidal Transformers with Cable and Mounting Holes:  

IEC CB 12V  High Efficiency Voltage power Toroidal Transformer for UPS 



Name:
High efficiency Toroidal Transformer for Amplifier,winding machine and equipments






1.Technical parameters

Power	Input Voltage(V)		Output Voltage(V)		Dimension OD*H(mm)		Weight (kg)
GWB50VA	220V (230V)		12V		80*38		0.74
GWB100VA	220V (230V)		12V		95*45		1.25
GWB200VA	220V (230V)		12V		112*52		2.05
GWB250VA	220V (230V)		12V		118*54		3.36
GWB500VA	220V (230V)		12V		140*65		4.2
GWB1000VA	220V (230V)		12V		170*75		7.2
GWB1500VA	220V (230V)		12V		180*85		9.75
GWB2000VA	220V (230V)		12V		185*105		12
GWB3000VA	220V (230V)		12V		200*120		16.6
GWB5000VA	220V (230V)		12V		230*135		24

Toroidal Transformer
Power	Dimension (mm)		Efficiency %	Current		Weight
GWB20VA	60*25		>82	10mA		1.200.45kgs
GWB30VA	65*35		>84	10mA		1.200.50kgs
GWB50VA	70*40		>88	20mA		1.151.30kgs
GWB100VA	85*60		>90	30mA		1.151.50kgs
GWB120VA	90*75		>93	40mA		1.102.00kgs
GWB200VA	110*80		>93	100mA		1.102.80kgs
GWB300VA	120*80		>94	150mA		1.083.50kgs
GWB500VA	130*80		>94	150mA		1.085.00kgs
GWB800VA	140*85		>94	200mA		1.086.50kgs
GWB1000VA	140*85		>95	300mA		1.058.50kgs
GWB1500VA	160*90		>95	400mA		1.0512.0kgs
GWB2000VA	180*90		>95	400mA		1.0515.0kgs
GWB4000VA	220*95		>95	500mA		1.0520.0kgs
GWB6000VA	250*95		>95	500mA		1.0525.0kgs

Minature toroidal Transformer :2.5VA-15VA 



2.  We have abtained 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 indutance test 

 8.DC resistance test 

 9.Surface inspection.
3.customized audio toroidal transformer and solar energy transformer   Application:
CLASS H HIGH STANDARD TOROIDAL TRANSFORMER FOR MEDICAL EQUIPMENT:


 

1). Application:

1. audio equipment 
2. electric control
3. computer
4.instrument
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 induatry

5.our company have cooperated with many customers around the world and gained good reputation at home and abroad.

 

3).Note 
The above-mentioned toroidal transformer is frequently-used, we can also manufacture the products by customer design. And the specification is for reference, if has the change further, please take the material object as the standard. 
4).GREWIN'S Dimension :
External diameter: 40mm-300mm, height :13mm-130mm, Efficiency: 75-98% 
we can design the appropriate products according to customers' requirments such as installation dimension, input and output voltage,power...etc.)

4.product procedure 

The following picture showed you about all finished toroidal transformer production line and package with export standard carton and strong pallets:

About us:

 1. Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ". 

2.Flow chart of trading activities:

 

NO	Step	Days need
1	Request for quotation	1 day
2	Making quotations	1 day
3	Offer and counter offer	3 days
4	Sending and receiving samples	3-10 days
5	Sample confirmation	3 days
6	Placing a firm order	1 day
7	Paying and receiving the down payment	1-4 day
8	Factory production & Quality inspection	15-20 days
9	Paying and receiving the balance	4 days
10	Delivery of goods	1 days

Contact Information:                                                        

Alice

Tianjin Grewin Technology Co.,Ltd.

Website:transformer.en.made-in-china.com