Power Supplies Help Guide

Power Supplies or PSUs cover many products, from DC to AC inverters through to the Plug-in types which can be used for gaming systems. RS stocks all of these types so to make your selection simpler, we've brought together some of our key ranges. Now you can find simple information on typical applications, voltage outputs and wattage ratings. Once you've found the right range for you, just click on the link to be taken through to the correct products.

Power Supply Help Guide

Choose your Power Supply

External / Plug-in Power Supplies

External / Plug-in Power Supplies

  • Plug-in mains adaptors with DC voltage outputs, ideal for powering portable or desktop equipment
  • 135mA to 20A output ratings available
  • Single and selectable output voltage versions up 54Vdc
  • Plug-top and leaded desktop options

View External Power Supplies »

Embedded / Equipment Power Supplies

Embedded / Equipment Power Supplies

  • Ready to use enclosed and open frame power supplies suitable for most factory automation demands
  • 25W to 2000W ratings available
  • 2.5Vdc to 393Vdc output options
  • Single and multi-output versions

View Embedded / Equipment Power Supplies »

Choose your Power Supply

DIN Rail Power Supplies

DIN Rail Power Supplies

  • DIN rail mount power supplies designed for use in control panels and machine controls
  • 1W to 1500W rated options in range
  • 3Vdc to 48Vdc output options
  • Fixed and adjustable output voltage versions available

View DIN Rail Power Supplies »

DC/DC Converters

DC/DC Converters

  • These allow the generation of higher DC voltages and split supply rails from a single DC supply or battery voltage
  • PCB mount format available in both dual and single inline package formats
  • Chassis mount enclosed option available
  • Available with single and multi-outputs from 1.8Vdc to 48Vdc

View DC/DC Converter Range »

Choose your Power Supply

Bench / Workshop Power Supplies

Bench / Workshop Power Supplies

  • Suitable for test, development or laboratory use with the choice of single or multi-outputs.
  • Constant voltage or constant current regulation options
  • 1A to 300A options available – including high current rackmount
  • Leading brands including Agilent, TTi (Thurlby Thandar), and ISOTECH

View Bench / Workshop Power Supplies »

DC to AC Inverter Power Supplies

DC to AC Inverter Power Supplies

  • Ideal for portable or vehicle use where no mains supply is available
  • Inverters capable of producing a 230Vac mains supply from a 12/24Vdc battery supply
  • 100W to 2.7kW output versions available
  • Direct battery or ‘cigar’ socket connection options

View DC to AC Inverter Power Supplies »

Choose your Power Supply Accessories

Power Supply Accessories

Power Supply Accessories

  • Selection of Power Supply accessories including:
  • Cable Assemblies
  • Interface Modules
  • Adaptors
  • Connector Kits

View Power Supply Accessories »

Uninterruptible Power Supplies (UPS)

Uninterruptible Power Supplies (UPS)

  • Capable of instantly producing a mains voltage using internal batteries if the mains supply should fail
  • Prevents critical data from being lost during a power cut.
  • Offline and Online versions available
  • Available from 240W up to 4.5kW

View UPS Range »

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