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Showing Results For: Toroidal Transformers

Toroidal Transformers

What are toroidal transformers?

A toroidal transformer is a unique type of electronic transformer having a doughnut-like structure. Transformers offer potential design reliability, flexibility, and scalability when making a comparison with a traditional shell and fundamental kind of transformers. They are a compact solution for low-KVA-rated equipment and tools employed in health, industrial, green energy, and musical applications.

Like a linear transformer, a toroidal transformer functions on the same electromagnetic induction principles. It has primary and secondary windings surrounding a toroidal core. Power may be transmitted from the main coil to the secondary coil because of the electromagnetic force (EMF) that is created as the current passes through the primary winding and creates a current in the secondary winding.

Benefits of Toroidal Core Transformers

  • Gets Less Volume
  • Lightweight Cores
  • Highly Durable and Efficient
  • Absolute Energy Savings
  • Highly Dimensionality Flexible
  • Convenient Installation
  • Noise Level is very Lower
  • Magnetic Flux Scattering is Low
  • Price Value is immensely extreme

Efficiency

The toroid's perfect magnetic circuit allows it to operate at greater flux densities than E-I laminates, which lowers the number of wire turns and/or core cross-sectional area needed. Both advantages lessen losses. Toroidal transformers generally have an efficiency of 90 to 95 percent, compared to less than 90% for E-I laminates. More focus has been placed in recent years on the energy efficiency of electrical equipment. Lighting and computer equipment are the most notable examples of the minimum efficiency criteria that have been proposed for all sorts of electrical devices. Transformers are probably going to be used to meet these new energy efficiency criteria.

Toroidal Transformer Application Areas

Transformers may be created to a variety of specifications to fit a wide range of applications. The usual application areas and samples Talema has created for these applications are shown below.

  • Audio and Video Devices
  • High-End Audio Systems
  • Medical Equipment
  • Electromechanical Testing
  • Inverters and Chargers
  • Welding machines

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New Items
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70030K, Nuvotem Talema

70030K, Nuvotem Talema

Miniature Encapsulated PCB Mount 115/230Vac Primary Transformers High performance fully encapsulated PCB mounting toroidal transformers with twin 115Va.c. 50/60Hz primary windings which may be connected in series for 230Va.c. or parallel for 115Va.c. operation. Twin secondary windings may be connected in series or parallel.,Ideal for use where space is at a premium and in applications requiring low levels of noise and radiated magnetic interference. Designed for easy board mounting with M4 central bush. Low profile compact design Fully encapsulated to UL94-V0 Extremely low level of radiated magnetic field Extremely low level of hum and noise High efficiency and low temperature rise Ease of mounting 100% electrical and flash tested Approvals UL recognised, VDE Standards EN60950, VDE0805, UL506, UL1950, UL6500 Approvals EN60950; VDE 0805 (VDE 5803UG); UL 506 (E215495); UL 1950 (E218027; UL 6500 (E218027) Encapsulated – Toroidal Maximum Operating Temperature +60°C Primary – Secondary Test Voltage 4 kV UL Recognised for Insulation Class A +105°C Meets All Requirements of Class E +120°C Pin Length x Diameter 1 x 0.5 mm Note Fixing screws not provided
New items
70042K, Nuvotem Talema

70042K, Nuvotem Talema

Miniature Encapsulated PCB Mount 115/230Vac Primary Transformers High performance fully encapsulated PCB mounting toroidal transformers with twin 115Va.c. 50/60Hz primary windings which may be connected in series for 230Va.c. or parallel for 115Va.c. operation. Twin secondary windings may be connected in series or parallel.,Ideal for use where space is at a premium and in applications requiring low levels of noise and radiated magnetic interference. Designed for easy board mounting with M4 central bush. Low profile compact design Fully encapsulated to UL94-V0 Extremely low level of radiated magnetic field Extremely low level of hum and noise High efficiency and low temperature rise Ease of mounting 100% electrical and flash tested Approvals UL recognised, VDE Standards EN60950, VDE0805, UL506, UL1950, UL6500 Approvals EN60950; VDE 0805 (VDE 5803UG); UL 506 (E215495); UL 1950 (E218027; UL 6500 (E218027) Encapsulated – Toroidal Maximum Operating Temperature +60°C Primary – Secondary Test Voltage 4 kV UL Recognised for Insulation Class A +105°C Meets All Requirements of Class E +120°C Pin Length x Diameter 1 x 0.5 mm Note Fixing screws not provided
New items
0050P1-2-006K, Nuvotem Talema

0050P1-2-006K, Nuvotem Talema

Encapsulated with Leads 230Vac Primary Transformers High quality encapsulated toroidal transformers with a single 230Vac 50/60Hz primary winding. Twin secondary windings may be connected in series or parallel or used independently. Designed for easy mounting with centre hole fixing. Fixing bolt not included Fully encapsulated to UL94-V0 Case material meets UL94-V0, Nylon 6.6 Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field Very low induced noise (hum) Very low iron loss Double insulated primary leads Low surface temperature 100% electrical and flash tested High quality manufacturing and testing in accordance to EN61558, EN60950, EN60065, VDE0551, VDE0550 and BS415 Leads PVC insulated 150mm long, 10mm stripped and tinned Secondary voltage tolerance Maximum ambient operating temperature + 40°C UL recognised for insulation Class A (105°C) EN61558 Approved to insulation Class E (120°C) Case material UL94-V0, Nylon 6·6 Standards UL94-V0 Approvals VDE 0551; VDE 0550 Standards EN61558; EN60950; EN60065; BS415 Toroidal Encapsulated 230Vac Primary 15VA to 500VA 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'.
New items
60031, Nuvotem Talema

60031, Nuvotem Talema

Toroidal, Mini Open Style Transformers with Leads 115/230Vac, 60000 Series High quality open style toroidal transformers with a 0-115/230Va.c. 50/60Hz primary winding. Twin secondary windings may be connected in series or parallel or used independently. Designed for easy mounting with centre hole fixing. Dual standard tapped primary 115/230Vac Low profile-small size-lightweight Potted centre with M4 fixing hole Low level of radiated magnetic field Very low induced noise (hum) Double insulated primary leads 100% electrical and flash tested High quality manufacturing and testing in accordance to EN61558,EN60950,EN60065, VDE0551,VDE0550,BS415 Leads PVC insulated 150mm long, 10mm stripped and tinned Primary-Secondary Test Voltage 4KV Maximum Ambient Operating Temperature +60°C UL recognised for insulation class A (105°C) Meets all requirements of class E (120°C) Fixing Hole Ø 4.1mm Approvals UL recognised, ENEC05 Standards UL506, EN61558 Approvals UL 506; ENG1558 Standards EN61558; EN60950; EN60065; VDE 0551; VDE 0550; BS415 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'.
New items
60020, Nuvotem Talema

60020, Nuvotem Talema

Toroidal, Mini Open Style Transformers with Leads 115/230Vac, 60000 Series High quality open style toroidal transformers with a 0-115/230Va.c. 50/60Hz primary winding. Twin secondary windings may be connected in series or parallel or used independently. Designed for easy mounting with centre hole fixing. Dual standard tapped primary 115/230Vac Low profile-small size-lightweight Potted centre with M4 fixing hole Low level of radiated magnetic field Very low induced noise (hum) Double insulated primary leads 100% electrical and flash tested High quality manufacturing and testing in accordance to EN61558,EN60950,EN60065, VDE0551,VDE0550,BS415 Leads PVC insulated 150mm long, 10mm stripped and tinned Primary-Secondary Test Voltage 4KV Maximum Ambient Operating Temperature +60°C UL recognised for insulation class A (105°C) Meets all requirements of class E (120°C) Fixing Hole Ø 4.1mm Approvals UL recognised, ENEC05 Standards UL506, EN61558 Approvals UL 506; ENG1558 Standards EN61558; EN60950; EN60065; VDE 0551; VDE 0550; BS415 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'.
New items
0500P1-2-025K, Nuvotem Talema

0500P1-2-025K, Nuvotem Talema

Encapsulated with Leads 230Vac Primary Transformers High quality encapsulated toroidal transformers with a single 230Vac 50/60Hz primary winding. Twin secondary windings may be connected in series or parallel or used independently. Designed for easy mounting with centre hole fixing. Fixing bolt not included Fully encapsulated to UL94-V0 Case material meets UL94-V0, Nylon 6.6 Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field Very low induced noise (hum) Very low iron loss Double insulated primary leads Low surface temperature 100% electrical and flash tested High quality manufacturing and testing in accordance to EN61558, EN60950, EN60065, VDE0551, VDE0550 and BS415 Leads PVC insulated 150mm long, 10mm stripped and tinned Secondary voltage tolerance Maximum ambient operating temperature + 40°C UL recognised for insulation Class A (105°C) EN61558 Approved to insulation Class E (120°C) Case material UL94-V0, Nylon 6·6 Standards UL94-V0 Approvals VDE 0551; VDE 0550 Standards EN61558; EN60950; EN60065; BS415 Toroidal Encapsulated 230Vac Primary 15VA to 500VA 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'.
New items
RKD 20/2x12, Block

RKD 20/2x12, Block

RKD Toroidal Transformers dual 115Vac input High quality open style toroidal transformers with dual 115Vac 50/60Hz primary and secondary windings which may be connected in series or parallel or used independently. Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field Very low induced noise (hum) Very low iron loss Supplied with mounting kit Insulation Class B Supplied with Mounting Kit Toroidal 115-230Vac Primary 15VA to 1000VA
New items
RKD 1600/2x115, Block

RKD 1600/2x115, Block

RKD Toroidal Transformers dual 115Vac input High quality open style toroidal transformers with dual 115Vac 50/60Hz primary and secondary windings which may be connected in series or parallel or used independently. Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field Very low induced noise (hum) Very low iron loss Supplied with mounting kit Insulation Class B Supplied with Mounting Kit Toroidal 115-230Vac Primary 15VA to 1000VA
New items
RKD 160/2x24, Block

RKD 160/2x24, Block

RKD Toroidal Transformers dual 115Vac input High quality open style toroidal transformers with dual 115Vac 50/60Hz primary and secondary windings which may be connected in series or parallel or used independently. Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field Very low induced noise (hum) Very low iron loss Supplied with mounting kit Insulation Class B Supplied with Mounting Kit
New items
RKD 30/2x9, Block

RKD 30/2x9, Block

RKD Toroidal Transformers dual 115Vac input High quality open style toroidal transformers with dual 115Vac 50/60Hz primary and secondary windings which may be connected in series or parallel or used independently. Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field Very low induced noise (hum) Very low iron loss Supplied with mounting kit Insulation Class B Supplied with Mounting Kit
New items
0160P1-2-015, Nuvotem Talema

0160P1-2-015, Nuvotem Talema

Open Style with Leads, 15VA to 1000VA High quality open style toroidal transformers with a single 230Vac 50/60Hz primary winding. Twin secondary windings may be connected in series or parallel or used independently. Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field and very low induced noise (hum) Very low iron losses Double insulated primary leads 100% electrical and flash tested High quality manufacturing and testing in accordance to EN61558, EN60950, EN60065, VDE 0551, VDE 0550 and BS415 Leads PVC insulated 150mm long, 10mm stripped and tinned Secondary Voltage Tolerance Insulation UL recognised Class A 105C Operating Temperature +40C Maximum Ambient Neoprene Pads 5kV isolation EN61558 Approved to insulation Class E(120°C) Standards UL 506; EN 61558 Supplied with Full mounting kit Approvals UL 506; EN 61558 Standards EN61558; EN60950; EN60065; BS415 Technical specifications VA regulation rise in dimensions (mm) mounting weight nominal (%) typ. temp. (°C) Ø h* bolt (kg) 15 16 26 60 31 M6 x 40 0.3 30 18 40 70 32 M6 x 40 0.45 50 14 42 80 33 M6 x 40 0.65 80 14 53 93 38 M6 x 50 BA 0.9 120 10 52 93 46 M6 x 60 1.2 160 9 55 105 42 M6 x 50 1.5 225 8 60 112 47 M6 x 60 1.9 300 8 60 115 58 M6 x 70 2.3 500 6 68 136 60 M8 x 70 3.5 625 5 67 136 68 M8 x 80 4.3 800 5 69 162 60 M8 x 70 5.1 1000 5 72 162 70 M8 x 80 6.5 * Leave 4 mm more for clearance, and 5 mm more where conductors come out 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'.
New items
0030P1-2-025, Nuvotem Talema

0030P1-2-025, Nuvotem Talema

Open Style with Leads, 15VA to 1000VA High quality open style toroidal transformers with a single 230Vac 50/60Hz primary winding. Twin secondary windings may be connected in series or parallel or used independently. Small size and low weight compared with traditional stacked lamination types Extremely low level of radiated magnetic field and very low induced noise (hum) Very low iron losses Double insulated primary leads 100% electrical and flash tested High quality manufacturing and testing in accordance to EN61558, EN60950, EN60065, VDE 0551, VDE 0550 and BS415 Leads PVC insulated 150mm long, 10mm stripped and tinned Secondary Voltage Tolerance Insulation UL recognised Class A 105C Operating Temperature +40C Maximum Ambient Neoprene Pads 5kV isolation EN61558 Approved to insulation Class E(120°C) Standards UL 506; EN 61558 Supplied with Full mounting kit Approvals UL 506; EN 61558 Standards EN61558; EN60950; EN60065; BS415 Technical specifications VA regulation rise in dimensions (mm) mounting weight nominal (%) typ. temp. (°C) Ø h* bolt (kg) 15 16 26 60 31 M6 x 40 0.3 30 18 40 70 32 M6 x 40 0.45 50 14 42 80 33 M6 x 40 0.65 80 14 53 93 38 M6 x 50 BA 0.9 120 10 52 93 46 M6 x 60 1.2 160 9 55 105 42 M6 x 50 1.5 225 8 60 112 47 M6 x 60 1.9 300 8 60 115 58 M6 x 70 2.3 500 6 68 136 60 M8 x 70 3.5 625 5 67 136 68 M8 x 80 4.3 800 5 69 162 60 M8 x 70 5.1 1000 5 72 162 70 M8 x 80 6.5 * Leave 4 mm more for clearance, and 5 mm more where conductors come out Warning Under no circumstances should both ends of the fixing bolt simultaneously contact the metal chassis or framework as this would create a potentially d...
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