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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: DERNFU
  • Model Number: DT17003
  • Power Range: 60VA-4000VA
  • Phase: Single/Three Phase
  • Input/Output: Customized
  • Insulation Class: Class E,B,F.H(Option)
  • Isolation: 3.75KV(HI-pot)
  • Model: 150VA
  • Input: 0-230VAC 50/60Hz BLK-BLK
  • Output: 0-12VAC 12.5A RED-RED
  • Product Name: Toroidal Transformer
  • Material: COPPER

Packaging & Delivery

Packaging Details Paper carton, Wooden box Or as client Request.
Delivery Time 20 days after order

LED Light Power Usage And Coil Structure Customized 350w Toroidal Transformer 



Toroidal transformer
DERNFU ENTERPRISE CO.,LIMITED found in Hongkong,DERNFU has more than 10 factories production capacity through partnerships, holding or acquisition approach, can provide transformers, electromagnet(solenoid), motor,air pump, water pump,air valve, water valve, regulator, inverter , lighting and household appliances,etc.
More than 20 years experience,professional to produce all kinds of toroidal transformers, we have a stronger  research and design team,200-300 employee,and can provide best service for OEM/ODM,factory in Guangdong province, China mainland.70% products export to more than forty countries.
Any inquiry please provide product usage, detail specification, datasheet ,engineering drawing, parameter demand or samples, purchasing quantity in one year, delivery address , target price,etc.
Contact: More my company information, please visit website: www.dernfu.com ;  my email: david@)dernfu.com; sales@)dernfu.com;dernfu@)163.com; Mobile phone:  86-0-13825752157. Wechat: 13825752157; WhatsApp: 13825752157. Skype: dernfu. Expect receive your more inquiry.
Our main products:  
Waterproof toroidal transformers,underwater light transformer,underground lamp transformer,outdoor transformer,Ring UPS power transformers, toroidal audio transformer, ring type epoxy potting transformers, toroidal solar transformer, ring-type wind power transformer, ring industrial control transformers, the ring lighting transformers, ring-type appliances transformer, ring medical transformers,ring test equipment transformer, ring-type three-phase transformer, the ring custom transformer.
1. Universal Purpose small size, easy to install
2. Reliable Safety Approvals
3. Twin primaries / twin secondaries
4. Low profile & Low Weight
5. Low No-load Losses
6. Low Mechanical Hum
7. Low Stray Magnetic Field
8. Low Operating Temperature
9. High Efficiency
10. Good Static Insulation between Primary and Secondary
11. Punily Leakage Current
12. Easy to mount
13. Competitive price and customerized
14. Cost saving prices
a. 115/230 Primary &120/240 Primary Toroida32l Transforme30r Series 100VA~3000VA
b. Primary 100V, 115V, 120V, 230V, 240V / 50 Hz
c. Secondary Customized Power range: 20VA to 25KVA
d. Standard UL506, UL1411, EN61558, EN6060-1, UL2601, UL544
e. Insulation Class B, Class F, Class H
f. Mounting One Metal plate, Two Rubber pads, One set of bolt & nut with washer, centre-potting
g.130 Deg C Thermal Cutoff and Thermal Switch from 105 Deg C to 150 Deg C can be fitted when required.
h. All data are subject to modification without prior notice
i. Certificates: CE and RoHS.
Production Management Procedure:
a. Adapt international ISO9001 standard in factory and workshop, use modern scientific management system.
b. Imported advanced production facility, trained best skillful engineer and worker, organized a full quality control and R&D team.
c. Use refined material, such as core, wire, and copper, magnetic. Connecter ect. All raw materials have passed UL, CE, ROHS test.
d. Guaranty for the quality, ensure to provide the all-time technical and after sale service.
Quality Control:
1) No-load test (Included no-load voltage, no-load current and no-load loss)
2) Load test (Included load voltage and temperature rise)
3) Inductive voltage test
4) DC resistance test
5) Short circle protection
6) Insulation resistance
7) Hi-POT test
8) Outlook inspection and Packing inspection
Usage Application:
1) Audio amplifier equipment;High-end audio, multimedia audio, card Charter, civil power amplifier, mixer;
2) Communication equipment;Public broadcast system
3) Medical equipment;Medical beauty equipment
4) Electric control equipment;Mechanical NC equipment;Mahjong machine
5) Household appliances
6) Power control equipment
7) Lighting equipment;Stage lamps;Outdoor of LED bright lighting;Professional stage amplifier machine
8) Industrial control 





Uso de la energía de la luz del LED y estructura de la bobina Transformador toroidal 350w personalizado...












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