Mini electric 220v 12v transformer
PCB safety isolation transformer
1.PCB Ecapsulated toroidal transformer :
Votage: 220v 230v 110v dual
Power: 10VA-30VA Encapsulated&waterproof toroidal transformer
GW-ⅠSeries: High Quality Encapsulated Toroidal Transformers with
220V 24V transformer
A.Drefers 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
B.Being a tendency of future pin transformer, it is applied with our
toroidal core (Po≤0.9W/Kg) in the result of High Efficiency, Low
Power Loss and Low
Temperature-rise to be Green, Energy-saving &
C.Attributed to our Patent Technology, excluding the pins
distribution mentioned above,
the pins distribution can be freely adjusted by following
D.Nice Appearance, Small Size, Moisture Proof & Mould Prevention.
E.Pins Quantity can be reduced or increased based on your
1.100% copper wire made
3.plastic cover :ABS fire Material of withstand high temperatures
4.high performance insulation
5.Anti-corrosion, waterproof performance
Input Voltage:AC 220V 230v 110v (Define the voltage)
Output voltage:AC 12V / 24V (Define the voltage)
Power range:8VA-30VA PCB Toroidal Transformer
220V 24V transformer
3.How to design Transformer ?
Transformer capacity is rated in Volt-Amps (VA) which is generally
the same as wattage (Watts).
Most loads are labeled withtheir proper operational voltage (Volts), current (Amps),
frequency (Hz), and wattage (Watts or VA). When you need to design
we must know the mainly below parameters to be customized:GREWIN's
Transformers ,plz kindly check attached file:
GREWIN's Custom Toroidal Transformers
PCB Mounting Type with PINS
Pcb encapsulated toroial transformer Application:
* garden light
* LED underwater lamp
* LED Ground light
* Outdoor power Supply
* Swimming pool lighting
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
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'.
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:
we can design the appropriate products according to customers'
requirments such as installation dimension, input and output
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
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
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:
Tianjin Grewin Technology Co.,ltd. has always laying great emphasis
on our corebusiness
philosophy "Quality and Honesty First ". Due to continuous
innovative researchand development,
our products have meet the technical standards and safety standards
, which are efficient and
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
I.We can manufacture High Frequency Transformers,EI Power
Below is our mainly products with much advantages in our market:
J.Flow chart of trading activities:
Request for quotation
Offer and counter offer
Sending and receiving samples
Placing a firm order
Paying and receiving the down payment
Factory production & Quality inspection
Paying and receiving the balance
Delivery of goods
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
(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
(3). Payment by T/T, if order amount is less than USD 20,000.
(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.