50Hz Custom Made Pure Sine Wave Inverter with Toroidal Transformer for Device Monitoring

• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Single
• Core: Core-type Transformer
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: GWB0800, GWB1309 etc.
• Cooling Method: Dry-type Transformer
• Winding Type: Auto-transformer
• Certification: UL, ISO9001, CCC, ISO9001:2015, Ce, SGS, IEC
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Device Monitoring
• Frequency Characteristics: Low Frequency
• Shape of Core: Ring
• Brand: Grewin
• Type: Toroidal Transformer
• Power: 250va-500va
• Frequency: 50Hz/60Hz
• Coil Number: High Flux Density Grain- Oriented Silicon Steel
• Transformer: Converters Ring Transformer
• Transport Package: Expoort Standard Carton with Srong Pallet
• Specification: CE, ROHS
• Trademark: GW
• Origin: Tianjin
• HS Code: 85043190
• Production Capacity: 50000/Month

Product Description

Product Description

1.Product pictures

2.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

3.Application:

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

4.Advantages:

1.High quality 100% copper core
2.a full range of toroidal transformer

5.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. 

6.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.)

Company introduction
1.certification

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



2.Company profile
     Tianjin Grewin is concentrating on transformers for 20 Years and complianted by ISO9001:2015,CB,IEC CB,CE etc.We're always pay great attention to its business philosophy "Quality and Honesty First".Grewin is specialized in the design and manufacture of wound components such as transformer,current sensors, chokes etc .windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also a provider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc.We sincerely invite you to join us to create a bright future.

3.Terms of Shipment:
(1)Products are shipped via UPS / DHL / EMS / HK EMS /     FedEx / TNT and so on expresses (door to door).
(2)We Provide Drop shipping Service.
(3)20 days around delivery upon receiving payment if the qty    is lower than 1000PCS and it is not customized products.
(4)In order to ensure you receive your order tax free upon  
import, we declare lower value.
(5)Shipping via EMS. UPS. FedEx and TNT express usually     takes 3~7days dependent on the destination country.

4.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.

5.Warranty:
(1)We provide 1 year warranty.
(2)If the product is defective, please notify us within 3 days of delivery.
(3)All products must be returned on their original condition, in order to qualify for a refund or exchange of goods

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



7.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

8.Why choose us?

Quality and honest first!
A. Flexible service for diffierent transformers with high efficiency performance.
B. Over 40 years experience of transformer designing and producing.
C.100% test of every single product we produce from incoming material checking.
D. UL, CE, ISO9001:2008
E. We offer custom-made transformers, OEM and ODM are welcome
F. We deliver the quality you expect at consistently competitive prices
G.Transformer quality lifetime:10 Years.
H.Specialty Sales service:5 -10 Years

9.contact
Tianjin Grewin Technology Co.,Ltd.
Tel: [phone]
 
 
Address: 2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China.