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Packaging

Selling Units:	Multiple of 100 Pieces
Single package size:	25X35X20 CM
Single gross weight:	55.0 KG

6VA 8va10va 12va15va 18va 20va 25va 30va PCB mounting isolation

Toroidal Transformer with CE,RoHS,UL approval:

 

 

Certifications:

 

1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first:

 

2.PCB Ecapsulated toroidal transformer :

Votage: 220v 230v 110v dual

 Power: 10VA-30VA Encapsulated&waterproof toroidal transformer

 

 

 

GW-ⅠSeries: High Quality Encapsulated Toroidal Transformers with Pins

Model No.	Dimension a×b×c (±0.5mm)	Pins Distribution (mm)  (±0.5mm)		array pitch		Volume (VA)
		E (8 Pins)	F (8 Pins)		G (±0.5mm)
GW-1-D	66×66×40	5	9		59	25-30
GW-2-D	66×66×37	5	9		59	20-23
GW-3-D	62×62×40	5	9		55	18-22
GW-4-D	62×62×37	5	9		55	15-18
GW-5-D	62×62×35	5	9		55	12-15
GW-6-D	62×62×32	5	9		55	10-13
GW-7-D	58×58×35	5	9		51	10-12
GW-8-D	58×58×32	5	9		51	8-10
GW-9-D	58×58×29	5	9		51	6-8

 

Remark:

 

A. D refers to the volume of a corresponding transformer, which will be replaced with a digit. 

For the transformer with a single winding, the corresponding max. volume can be reached; for the transformer with two or more windings, the corresponding volume will be reduced

 properly.

 

B. Being a tendency of future pin transformer, it is  applied  with our best self-made 

toroidal core (Po≤0.9W/Kg) in the result of High Efficiency, Low Power Loss and Low

 Temperature-rise to be Green, Energy-saving & Environment-friendly.

 

C. Attributed to our Patent Technology, excluding the pins distribution mentioned above,

 the pins distribution can be freely adjusted by following customer’s advice.

 

D. Nice Appearance, Small Size, Moisture Proof & Mould Prevention.

 

E. Pins Quantity can be reduced or increased based on your requirement.

 

3.Material Advantages:
1.100% copper wire made
2.Toroidal style
3.plastic cover :ABS fire Material of withstand high temperatures
4.Epoxy resin
4.high performance insulation
5.Anti-corrosion, waterproof performance
Main parameters:
Input Voltage:AC 220V   230v 110v (Define the voltage)
Output voltage:AC 12V / 24V       (Define the voltage)
Power range:8VA-30VA PCB Toroidal Transformer

 

4.How to design Transformer ? 

Transformer capacity is rated in Volt-Amps (VA) which is generally the same as wattage (Watts). 

Most loads are labeled with their proper operational voltage (Volts), current (Amps), 

frequency (Hz), and wattage (Watts or VA). When you need to design a transformer,

we must know the mainly below parameters to be customized:GREWIN's Custom 

Transformers ,plz kindly check attached file:

 

GREWIN's Custom Toroidal Transformers 

 

*Input volts:
*Frequency:
*Output volts:
*VA rating:
*Lead length:(inches)
Maximum height:
Maximum diameter:
*Quantity required:
Additional comments:

 

 

 

5.WHY CHOOSE US?

 

A.

1. Installation:
PCB Mounting Type with PINS

2.Application:

Pcb encapsulated toroial transformer Application:
* garden light
* LED underwater lamp

* LED Ground light
* Outdoor power Supply

* Swimming pool lighting
       

3.Equipment:
Over 50 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 2 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment as below:
. Automatic Winding Machine
. Semi-automatic Winding Machine
. Toroidal Winding Machine
. Insert Lamination Machine
. Wave Soldering Machine
. Plastic Termal Ultraviolet Machine
. Domino Ink Jet Printing Machine

 Transformer Multitester for High & Low Frequency
 Layer Insulation Withstand Voltage Tester

 

B.Warning
Under no circumstances should both ends of the fixing bolt simultaneously contact the metal chassis or framework as this would create a potentially dangerous 'shorted-turn'.
C.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.
D.GREWIN'S Dimension : External diameter: 55mm-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.)

E.Dual 110V Power Transformer:

For the international market request, these types of the GREWIN Transformers are designed into dual primaries for 110V. No matter what about your local voltage is 110V or 220V, you should use them. Below are the methods for using:
1. If you are using 110VAC(such as Taiwan, US), Please parallel the two primaries 110V. Please pay attention to the terminals of 110V must be short circuit, and the terminals of 0V must be short circuit.

2.If you are using 220VAC(such as Hongkong, China Mainland, Europe), Please series the two primaries.  Please pay attention to one terminals of 0V must be short circuit with another terminals of 110V.

 

F.GREWIN has various kinds of state-of-the-art equipment, which are used in production, sampling and testing. Our equipments enable us to produce good quality products efficiently.

 

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

H.About us:

 

Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business

 philosophy "Quality and Honesty First ". Due to continuous innovative research and development,

 our products have meet the technical standards and safety standards , which are efficient and

 environment friendly. 

As a professional leading and a main exporter of a wide variety of electronic components in China 

for many years, we adhere to new products, quality to meet the needs of you and welcome all of you 

to negotiate!

 

 

I. We can manufacture High Frequency Transformers,EI Power Transformers.

Below is our mainly products with much advantages in our market: 

 

J.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

 

K.Acceptance of the Conditions:

 

All orders accepted by GREWIN are subject to the general sale conditions herein set forth, which are understood and accepted by the Purchaser when passing the order and/or upon receipt of GREWIN invoices. Other conditions as well as any verbal agreement are considered valid only if specifically confirmed by GREWIN in writing.

 

L.Payment terms:

 

(1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery.

 

(2). By irrevocable L/C at sight, to be issued immediately against confirmed order.

 

(3). Payment by T/T, if order amount is less than USD 20,000.

 

M.Sample terms:

 

(1). Samples will be sent subject to advance payment to cover the courier charge and samples charge.

 

(2). You are pleased to instruct your courier company to pick up samples in our TianJin, China office at your expenses. For pick-up details, please advise your courier company to contact us.

 

(3). Delivery time 3-10 working days.

Packaging

Selling Units:	Multiple of 100 Pieces
Single package size:	25X35X20 CM
Single gross weight:	55.0 KG

6VA 8va10va 12va15va 18va 20va 25va 30va PCB mounting isolation

Toroidal Transformer with CE,RoHS,UL approval:

 

 

Certifications:

 

1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first:

 

2.PCB Ecapsulated toroidal transformer :

Votage: 220v 230v 110v dual

 Power: 10VA-30VA Encapsulated&waterproof toroidal transformer

 

 

 

GW-ⅠSeries: High Quality Encapsulated Toroidal Transformers with Pins

Model No.	Dimension a×b×c (±0.5mm)	Pins Distribution (mm)  (±0.5mm)		array pitch		Volume (VA)
		E (8 Pins)	F (8 Pins)		G (±0.5mm)
GW-1-D	66×66×40	5	9		59	25-30
GW-2-D	66×66×37	5	9		59	20-23
GW-3-D	62×62×40	5	9		55	18-22
GW-4-D	62×62×37	5	9		55	15-18
GW-5-D	62×62×35	5	9		55	12-15
GW-6-D	62×62×32	5	9		55	10-13
GW-7-D	58×58×35	5	9		51	10-12
GW-8-D	58×58×32	5	9		51	8-10
GW-9-D	58×58×29	5	9		51	6-8

 

3.Material Advantages:
1.100% copper wire made
2.Toroidal style
3.plastic cover :ABS fire Material of withstand high temperatures
4.Epoxy resin
4.high performance insulation
5.Anti-corrosion, waterproof performance
Main parameters:
Input Voltage:AC 220V   230v 110v (Define the voltage)
Output voltage:AC 12V / 24V       (Define the voltage)
Power range:8VA-30VA PCB Toroidal Transformer

 

A.

1. Installation:
PCB Mounting Type with PINS

2.Application:

Pcb encapsulated toroial transformer Application:
* garden light
* LED underwater lamp

* LED Ground light
* Outdoor power Supply

* Swimming pool lighting
       

3.Equipment:
Over 50 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 2 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment as below:
. Automatic Winding Machine
. Semi-automatic Winding Machine
. Toroidal Winding Machine
. Insert Lamination Machine
. Wave Soldering Machine
. Plastic Termal Ultraviolet Machine
. Domino Ink Jet Printing Machine

 Transformer Multitester for High & Low Frequency
 Layer Insulation Withstand Voltage Tester

 

B.Warning
Under no circumstances should both ends of the fixing bolt simultaneously contact the metal chassis or framework as this would create a potentially dangerous 'shorted-turn'.
C.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.
D.GREWIN'S Dimension : External diameter: 55mm-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.)

E.Dual 110V Power Transformer:

For the international market request, these types of the GREWIN Transformers are designed into dual primaries for 110V. No matter what about your local voltage is 110V or 220V, you should use them. Below are the methods for using:
1. If you are using 110VAC(such as Taiwan, US), Please parallel the two primaries 110V. Please pay attention to the terminals of 110V must be short circuit, and the terminals of 0V must be short circuit.

2.If you are using 220VAC(such as Hongkong, China Mainland, Europe), Please series the two primaries.  Please pay attention to one terminals of 0V must be short circuit with another terminals of 110V.

 

F.GREWIN has various kinds of state-of-the-art equipment, which are used in production, sampling and testing. Our equipments enable us to produce good quality products efficiently.

 

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

H.About us:

 

Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business

 philosophy "Quality and Honesty First ". Due to continuous innovative research and development,

 our products have meet the technical standards and safety standards , which are efficient and

 environment friendly. 

As a professional leading and a main exporter of a wide variety of electronic components in China 

for many years, we adhere to new products, quality to meet the needs of you and welcome all of you 

to negotiate!

 

 

I. We can manufacture High Frequency Transformers,EI Power Transformers.

Below is our mainly products with much advantages in our market: 

 

J.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

 

K.Acceptance of the Conditions:

 

All orders accepted by GREWIN are subject to the general sale conditions herein set forth, which are understood and accepted by the Purchaser when passing the order and/or upon receipt of GREWIN invoices. Other conditions as well as any verbal agreement are considered valid only if specifically confirmed by GREWIN in writing.

 

L.Payment terms:

 

(1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery.

 

(2). By irrevocable L/C at sight, to be issued immediately against confirmed order.

 

(3). Payment by T/T, if order amount is less than USD 20,000.

 

M.Sample terms:

 

(1). Samples will be sent subject to advance payment to cover the courier charge and samples charge.

 

(2). You are pleased to instruct your courier company to pick up samples in our TianJin, China office at your expenses. For pick-up details, please advise your courier company to contact us.

 

(3). Delivery time 3-10 working days.

 

Contract Information:

Cathy Li

Tianjin Grewin Technology Co.,Ltd

E-mail:cathy(at)grewin-tech.com

Mobile(what'sapp):86-15127622290

Skype:grewin.ella

wechat:mumude7

Web:www.grewin-tech.com

       www.grewin-tech.en.alibaba.com