? Round shape with no air gaps ? Uniform primary and secondary windings locked in the magnetic field makes these transformers very quiet and efficient. ? Compact designing, efficiency, quiet and safer ? Smaller dimensions, lighter weight, and low stray magnetic fields We specialize in manufacturing of above products as per customer specifications. Carton in pallet
Model NO.: 50VA-5000VA GWB140321 Usage: Single-phase Transformer Frequency Characteristics: Power Frequency Shape of Core: Ring Brand: Grewin Toroidal Transformer Power: 50va-5000va: Universal Purpose Low No-Load Losses: Low Mechanical Hum Low Magnetic Leakage: High Efficiency Power Factor: 0.9 to 0.98: Encapsulated by Iron Shell: CE, RoHS, SGS, Cesi a Horizontal: Sunk, Side Type, and Bridge: Phase: Single Brand Name: Gw: Place of Origin: Tianjin, China (Mainland) Trademark: Grewin Toroidal Transformer Transport Package: Carton Specification: CE, RoHS, SGS, CESI and ISO9001 Origin: Tianjin HS Code: 85043190
1. Technical parameters. Toroidal Transformer I Power Thermal Fuse Current Fuse Dimension (mm) Approval Mark GWB25VA 135 ºC 250V 2A 250V T 2A 80*35 CE UL TUV CQC GWB30VA 135 ºC 250V 2A 250V T 2A 83*35 CE UL TUV CQC GWB40VA 135 ºC 250V 2A 250V T 2A 87*35 CE UL TUV CQC GWB50VA 135 ºC 250V 2A 250V T 2A 93*34 CE UL TUV CQC GWB60VA 135 ºC 250V 2A 250V T 2A 93*35 CE UL TUV CQC GWB80VA 135 ºC 250V 2A 250V T 2A 102*35 CE UL TUV CQC GWB105VA 135 ºC 250V 2A 250V T 2A 114*38 CE UL TUV CQC GWB120VA 135 ºC 250V 2A 250V T 2A 113*41 CE UL TUV CQC GWB140VA 135 ºC 250V 2A 250V T 2A 114*42 CE UL TUV CQC GWB150VA 135 ºC 250V 2A 250V T 2A 117*43 CE UL TUV CQC GWB160VA 135 ºC 250V 5A 250V T 5A 120*43 CE UL TUV CQC GWB180VA 135 ºC 250V 5A 250V T 5A 125*42 CE UL TUV CQC GWB200VA 135 ºC 250V 5A 250V T 5A 124*49 CE UL TUV CQC GWB220VA 135 ºC 250V 5A 250V T 5A 127*50 CE UL TUV CQC GWB240VA 135 ºC 250V 5A 250V T 5A 129*48 CE UL TUV CQC GWB250VA 135 ºC 250V 5A 250V T 5A 130*52 CE UL TUV CQC GWB260VA 135 ºC 250V 5A 250V T 5A 130*53 CE UL TUV CQC GWB280VA 135 ºC 250V 5A 250V T 5A 138*45 CE UL TUV CQC GWB300VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC GWB320VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC GWB340VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC GWB360VA 135 ºC 250V 5A 250V T 10A 142*55 CE UL TUV CQC GWB380VA 135 ºC 250V 5A 250V T 10A 146*54 CE UL TUV CQC GWB400VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC GWB420VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC GWB440VA 135 ºC 250V 5A 250V T 10A 148*60 CE UL TUV CQC GWB460VA 135 ºC 250V 5A 250V T 10A 149*64 CE UL TUV CQC GWB480VA 135 ºC 250V 5A 250V T 10A 153*59 CE UL TUV CQC GWB500VA 135 ºC 250V 5A 250V T 10A 155*62 CE UL TUV CQC 2. We have attained 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 inductance test 8.DC resistance test 9.Surface inspection. 3.customized audio toroidal transformer and solar energy transformer Application: 220V 24V Toroidal Power Transformer 1). Application: 1. audio equipment 2. electric control 3. computer 4. solar device 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 industry 5.our company have cooperated with many customers around the world and gained good reputation at home and abroad.
24v 12v Power Toroidal Transformer (Click here for Customized Design And Interactive Design Service) Single-phase toroidal transformers, power range from 20VA to 5000VA. Designed and tested according to EN61558. Suitable for installation in electronically equipment. Designed as a safety isolating transformer with separate insulated windings and prepared for class II equipment. Short circuit and overload protected with thermal fuse on primary side. Up to 50% less weight than a similar conventional transformer. Low magnetisation currents and no-load losses. Applications: Suitable as safety isolating transformer in constructions where low weight, flexible dimensions and optimum conditions between dimensions are preferable. Technical specifications Input voltage: Customized Frequency: 50-60Hz Output voltage: Customized According to: EN61558 Test/insulating voltage: 4kV AC RMS Construction class: II In carton
Name: Grewin 12v 24v Toroidal Transformer Ring type Transformer 100va 200va 1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first: The dimension of the toroidal transformers: The Partial List of GW-B Series Toroidal Transformers with Cable and Mounting Holes: A. 1. Installation: Horizontal (non-conventional-type base plate), sunk, side type, and bridge. 2.Application: Especially low-hum and low-dispersing construction Low-level of induction High-grade design casing possible Statically shield winding and magnetical shield winding optional . Be used widely such as audio equipment,communication,new energy areas,Electrical control,Cable TV network etc. 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 4.Certificate The certificate of our transformer has CE CQC RoHs UL B.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. CONTACT NAME CARD: 20VA 60 H25 82 10mA 1.20V 0.45kgs 30VA 65 H35 84 10mA 1.20 0.50kgs 50VA 70 H40 88 20mA 1.15 1.30kgs 100VA 85 H60 90 30mA 1.15 1.50kgs 120VA 90 H75 93 40mA 1.10 2.00kgs 200VA 110 H80 93 100mA 1.10 2.80kgs 300VA 120 H80 94 150mA 1.08 3.50kgs 500VA 130 H80 94 150mA 1.08 5.00kgs 800VA 140 H85 94 200mA 1.08 6.50kgs 1000VA 140 H85 95 300mA 1.05 8.50kgs 1500VA 160 H90 95 400mA 1.05 12.0kgs 2000VA 180 H90 95 400mA 1.05 15.0kgs 4000VA 220 H95 95 500mA 1.05 20.0kgs 6000VA 250 H95 95 500mA 1.05 25.0kgs
Model NO.: EI25 Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Iron Core for Transformer Frequency Characteristics: Low Frequency Shape of Core: Customized Brand: No brand Core Material: CRGO Silicon Steel Core Output Voltage: Customers Requirement Input Voltage: Customers Requirement Winding Material: Copper\Aluminum Place of Origin: Guangdong, China (Mainland) Frequency: 50-60Hz Customized: Yes Advantage: Quick Delivery Price: Negotiable Transport Package: Customization Specification: customized
Toroidal Transformers, by meeting today's requirements for smaller, more efficient, quieter and safer products, are being accepted in an increasing range of electronic and electrical equipment With toroidal transformer smaller dimensions, lighter weight and low stray magnetic fields , you can build more compact, lower cost quality products without sacrificing performance. Toroidal has a round shape with no air gaps, and with the primary and secondary windings uniformly distributed around the core, locks in\" the magnetic field and makes the toroidal transformer very quiet and efficient. Toroidal transformers are built around a ring-shaped core, which, depending on operating frequency, is made from a long strip of silicon steel or permalloy wound into a coil, powdered iron, or ferrite core. We make wide range of Toroids based on customer specifications. We provide center potted, plate mounted, clamp mounted and many other types of Toroids on customer specifications. Features High precision winding with Jovil and Ruff machines. High quality M4 27 CRGO core used Class H+ 200 Deg C Dual coat Enameled copper wires used UL approved Center potting provided for better cooling and fixing Tailor made according to customer specs TYCO, PANDUIT and MOLEX connectors and crimps used for UL approved models Custom made parts are designed and developed to meet specific requirements. Standards We follow Indian and UL standards. We can provide UL 5085-1 and 5085-2 We can make our product compatible with all international standards Applications Used medical and audio equipment Used in voltage stabilizers Used in electronics circuits Used in power supply units Used in variacs Used in high precision equipment
Core: wound by high quality cold grain silicon, annealed by advanced vacuum annealing furnaces to improve electronic data, any dimension from customer are available Wire: copper and aluminum are available weld aluminum enamel wire well to save your cost 15 to 35%, based on our know-how technology Thermal protector: cutoff and switch are both available Applications: Electronic meter and apparatus Cable tv and digital network Electronic control Medical equipment New electric power supply Decorative illumination system Monitoring and control equipment Installation: horizontal (non-conventional-type base plate), sunk, side type and bridge Label info: certificate logo, basic electronic data, manufacturer's information also can be printed according to customer's request bar code is available based on customer's request Capacity: 5va to 5kva Phase: single Input voltage: ac power with voltages of various countries Output voltage: ac or customized Frequency: 50 to 60hz Power factor: 0.9 to 0.98 Efficiency: 75 to 98% Voltage regulation: 12 to 3% Output no-load loss: 0.5 to 10.0w Temperature-rise: ¡¨¹85¡ãc Insulation class: b: 130¡ãc e: 120¡ãc Testing items: no-load test (no-load current, voltage and loss) load test (load voltage, temperature-rise) inductive voltage test dc resistance test safety test
With high efficiency, low inrush current and low noise characteristics which are popular in the market. We also make reactor inductor for inverter of solar power with low loss and low noise. Power range 1000va to 30kva Phase single/three phase Input/output customized Insulation class ul class b, f, h, n (optional Isolation 4kv hi-pot
