Designs To Suit Almost Any Application...

"Slim Line"... Designed For LED Lighting!

Popular "Stock" low-profile step-down autotransformers for use with conventional and LED auto-ranging drivers & supplies (e.g. 100-277 volt). UL Approved for both Canada & US. Open types for internal mount (mounting brackets optional) or Enclosed types for external-mount applications.  

  • 347-240V @ 50W, 100W or 240W
  • 347-120V @ 25W, 60W or 125W
  • 480-240V @ 35W, 75W or 170W

Check out the "Slim-Line" 347V and 480V Autotransformer Models and Specs

Other Custom Designed Configurations of 347V, 480V and 600V Step-Down Transformers

  • 347V, 480V and 600V Autotransformers
  • 347V, 480V and 600V Isolation Transformers
  • 347V, 480V and 600V Lighting and LED Driver Step-Down Transformers


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Transformers That Perform!

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347V, 480V & 600V Step-Down Transformer Capabilities at Electronic Craftsmen

  • Frequency 60Hz (standard for Canada & US)
  • Power to 5kVA
  • Temperature Class to 220C (155C / Class F typical)
  • Weight: 0.06 oz / 1g to 550 lbs / 250kg
  • Multiple taps as required
  • Dielectric Strength (hipot) to 30kVac or 20kVdc
  • Parts can be vacuum varnished or molded with a variety of hard or soft encapsulant materials with thermal conductivity.
  • Wire sizes from 1-45 AWG or Copper Foil to 0.050in thick (in multiple layers for higher current); Litz wire for higher frequency
  • Regulation to specification
  • Manufactured using all known state-of-the-art magnetic core materials, including but not limited to
    electrical grade steel laminations, ferrites & powdered iron, nickel-iron alloy, iron amorphous
    metal strip-wound cores, nanocrystalline cores and small toroids.
  • Antifungal and non-nutrient coatings available
  • Corrosion resistant coatings & platings available
  • Standard or custom terminations & leads
  • Mounting Configurations: pcb-mount (horizontal or vertical), custom or standard brackets or stacked
  • Designed to meet CSA & UL (safety) or MIL PRF 27 (aerospace / military) requirements upon request
  • MIL PRF 27 Grade 5 & 6 encapsulation available