10mA 20mA Electric Minature Toroidal Transformer 2.5va-25va

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio, LED Lighting
• Phase: Single
• Model NO.: GWTT
• Core: Toroid Core
• Cooling Method: Dry-type Transformer
• Winding Type: Auto-transformer
• Certification: ISO9001-2000, ISO9001, CCC, CE
• Usage: Lighting, Outdoor Lighting, Garden Lighting
• Frequency Characteristics: Low Frequency
• Shape of Core: Ring
• Brand: Grewin Electric Control Lighting Transformer
• Type: Toroidal Transformer
• Coil Number: High Flux Density Grain- Oriented Silicon Steel
• Input: 220V 240V 120V 150VAC to 24V 110V to 24V
• Loading Voltage: 0-120V-240V
• Frequency: 50Hz/60Hz
• Voltage Design: Customized
• Transport Package: Export Standard Carton or Customize Strong Pallet
• Specification: CE
• Trademark: Grewin Electric Control Lighting Transformer
• Origin: China
• HS Code: 85043190
• Production Capacity: 50000 PCS

Product Description

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

2.High Quality Toroidal Transformer for Wind Energy

1. technical parameters.

Toroidal Transformer I
Power	Thermal Fuse		Current Fuse	Dimension (mm)		Approval Mark
GWB25VA	135ºC 250V 2A		250V T 2A	80*35		CE UL TUV CQC
GWB30VA	135ºC 250V 2A		250V T 2A	83*35		CE UL TUV CQC
GWB40VA	135ºC 250V 2A		250V T 2A	87*35		CE UL TUV CQC
GWB50VA	135ºC 250V 2A		250V T 2A	93*34		CE UL TUV CQC
GWB60VA	135ºC 250V 2A		250V T 2A	93*35		CE UL TUV CQC
GWB80VA	135ºC 250V 2A		250V T 2A	102*35		CE UL TUV CQC
GWB105VA	135ºC 250V 2A		250V T 2A	114*38		CE UL TUV CQC
GWB120VA	135ºC 250V 2A		250V T 2A	113*41		CE UL TUV CQC
GWB140VA	135ºC 250V 2A		250V T 2A	114*42		CE UL TUV CQC
GWB150VA	135ºC 250V 2A		250V T 2A	117*43		CE UL TUV CQC
GWB160VA	135ºC 250V 5A		250V T 5A	120*43		CE UL TUV CQC
GWB180VA	135ºC 250V 5A		250V T 5A	125*42		CE UL TUV CQC
GWB200VA	135ºC 250V 5A		250V T 5A	124*49		CE UL TUV CQC
GWB220VA	135ºC 250V 5A		250V T 5A	127*50		CE UL TUV CQC
GWB240VA	135ºC 250V 5A		250V T 5A	129*48		CE UL TUV CQC
GWB250VA	135ºC 250V 5A		250V T 5A	130*52		CE UL TUV CQC
GWB260VA	135ºC 250V 5A		250V T 5A	130*53		CE UL TUV CQC
GWB280VA	135ºC 250V 5A		250V T 5A	138*45		CE UL TUV CQC
GWB300VA	135ºC 250V 5A		250V T 10A	138*54		CE UL TUV CQC
GWB320VA	135ºC 250V 5A		250V T 10A	138*54		CE UL TUV CQC
GWB340VA	135ºC 250V 5A		250V T 10A	138*54		CE UL TUV CQC
GWB360VA	135ºC 250V 5A		250V T 10A	142*55		CE UL TUV CQC
GWB380VA	135ºC 250V 5A		250V T 10A	146*54		CE UL TUV CQC
GWB400VA	135ºC 250V 5A		250V T 10A	148*56		CE UL TUV CQC
GWB420VA	135ºC 250V 5A		250V T 10A	148*56		CE UL TUV CQC
GWB440VA	135ºC 250V 5A		250V T 10A	148*60		CE UL TUV CQC
GWB460VA	135ºC 250V 5A		250V T 10A	149*64		CE UL TUV CQC
GWB480VA	135ºC 250V 5A		250V T 10A	153*59		CE UL TUV CQC
GWB500VA	135ºC 250V 5A		250V T 10A	155*62		CE UL TUV CQC

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

3.Waterproof outdoor toroidal Transformer :105VA-1000VA

Waterproof Toroidal Transformer
Model	Power(va)	Input Voltage(v)		Output Voltage(v)/A
GWET-105	105VA	A	220-240V 50-60HZ	24V/4.38A
		B	220-240V 50-60HZ	12V/8.75A
GWET-150	150VA	A	220-240V 50-60HZ	24V/6.25A
		B	220-240V 50-60HZ	12V/12.5A
GWET-180	180VA	A	220-240V 50-60HZ	24V/7.5A
		B	220-240V 50-60HZ	12V/15A
GWET-200	200VA	A	220-240V 50-60HZ	24V/8.33A
		B	220-240V 50-60HZ	12V/16.67A
GWET-250	250VA	A	220-240V 50-60HZ	24V/10.42A
		B	220-240V 50-60HZ	12V/20.83A
GWET-300	300VA	A	220-240V 50-60HZ	24V/12.5A
		B	220-240V 50-60HZ	12V/25A
GWET-350	350VA	A	220-240V 50-60HZ	24V/14.58A
		B	220-240V 50-60HZ	12V/29.17A
GWET-400	400VA	A	220-240V 50-60HZ	24V/16.67A
		B	220-240V 50-60HZ	12V/33.33A
GWET-450	450VA	A	220-240V 50-60HZ	24V/18.75A
		B	220-240V 50-60HZ	12V/37.5A
GWET-500	500VA	A	220-240V 50-60HZ	24V/20.83A
		B	220-240V 50-60HZ	12V/41.67A
GWET-600	600VA	A	220-240V 50-60HZ	24V/25A
		B	220-240V 50-60HZ	12V/50A
GWET-800	800VA	A	220-240V 50-60HZ	24V/33.33A
		B	220-240V 50-60HZ	12V/66.67A
GWET-1000	1000VA	A	220-240V 50-60HZ	24V/41.67A
		B	220-240V 50-60HZ	12V/83.3A

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:

 

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:
We have passed ISO9001:2015,CE,SGS approval and IEC report

1.Technical parameters

 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