AC & DC Power Supplies

Supply power to multiple systems using our range of single output and multiple output AC and DC power supplies. High quality products from Extech, Siglent and Chauvin Arnoux suitable for use in a wide variety of different applications.

Find out more about AC & DC Power Supplies below.

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Siglent SPD1000X Programmable Linear DC Power Supply –Choice of Output
In Stock : Get It Next Working Day*
Siglent SPD1000X Programmable Linear DC Power Supply –Choice of Output
£207.00
£248.40 inc. vat
  • Two models with choice of voltage, current and total power outputs
  • 4-wire Compensation mode and 2-wire Output mode
  • 2.8” TFT-LCD display with a clear graphical interface and real-time waveform
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Siglent SPD3303C Programmable Linear DC Power Supply
In Stock : Get It Next Working Day*
Siglent SPD3303C Programmable Linear DC Power Supply
£217.00
£260.40 inc. vat
  • Three independent outputs: 2x adjustable outputs and 1x output with fixed selectable voltages
  • Total power output: 220W
  • Lightweight with LED display
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Siglent SPD3303X-E Programmable DC Power Supply
In Stock : Get It Next Working Day*
Siglent SPD3303X-E Programmable DC Power Supply
£350.00
£420.00 inc. vat
  • 4.3" true colour TFT-LCD display with resolution of 480 x 272 pixels
  • Variable DC output
  • Save and recall 5 testing procedures
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Siglent SDL1000X / SDL1000X-E DC Electronic Load Power Supply
Siglent SDL1000X / SDL1000X-E DC Electronic Load Power Supply
£393.00
£471.60 inc. vat
  • Four models available
  • Provides power up to 200W or 300W (model dependent)
  • Over-Current, Over-Power, Over-Voltage and Over-Temperature protection modes
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Siglent SPD3303X Programmable DC Power Supply
In Stock : Get It Next Working Day*
Siglent SPD3303X Programmable DC Power Supply
£450.00
£540.00 inc. vat
  • Output voltage to 32V
  • Output current of 3.2A
  • Fully user configurable
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Siglent SPD4000X Series Programmable Linear DC Power Supply, 4 Channels
In Stock : Get It Next Working Day*
Siglent SPD4000X Series Programmable Linear DC Power Supply, 4 Channels
£520.00
£624.00 inc. vat
  • Four independent outputs
  • Rated output power: 240W, 285W, 400W
  • USB and LAN standard communication
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Siglent SPS5000X-Series Switch Mode Power Supply – Single Channel
Siglent SPS5000X-Series Switch Mode Power Supply – Single Channel
£699.00
£838.80 inc. vat
  • 2.4” OLED display with 170° viewing angle
  • Provides a range of constant power outputs via one channel
  • Ten models available with different voltage, current, and power outputs
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Siglent SPS5000X-Series Switch Mode Power Supply – Dual Channel
Siglent SPS5000X-Series Switch Mode Power Supply – Dual Channel
£1,397.00
£1,676.40 inc. vat
  • Dual-channel, programmable switching DC power supply
  • 2.4” OLED display with 170° viewing angle
  • Three models with different voltage and current outputs
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Siglent SSU5000A Series Mechanical Switches, 2.4mm or SMA Connectors, DC-18 GHz to 50 GHz  - Choice of Switch
Siglent SSU5000A Series Mechanical Switches, 2.4mm or SMA Connectors, DC-18 GHz to 50 GHz - Choice of Switch
£1,435.00
£1,722.00 inc. vat
  • 18 GHz, 26.5 GHz, or 50 GHz
  • SCPI Controllable
  • USB Connectivity
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Siglent SPS5000X-Series Switch Mode Power Supply – Triple Channel
Siglent SPS5000X-Series Switch Mode Power Supply – Triple Channel
£1,662.00
£1,994.40 inc. vat
  • Triple-channel, programmable switching DC power supply
  • 2.4” OLED display with 170° viewing angle
  • Three models with different voltage and current outputs
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Siglent SPS6000X Series Single Channel Programmable DC Switching Power Supply
Siglent SPS6000X Series Single Channel Programmable DC Switching Power Supply
£1,780.00
£2,136.00 inc. vat
  • Rated Voltage: 200 V or 100 V
  • Rated Current: 25 A or 50 A
  • Rated power: 1500 W
  • OVP, OCP, LPP, OTP protection
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About AC & DC Power Supplies

A power supply, as the name might suggest, is primarily used to distribute electrical power straight into electrical loads, giving them the energy they need to operate.

DC (Direct Current) power supplies are typically used in low-voltage installations to generate power for components. At their most basic level, power supplies are present in a wide variety of electrical household appliances such as desktop computers, washing machines, televisions, and more, as each of these components runs on a constant DC voltage that is converted from the alternating current supplied by the national grid.

A power supply can also be used to convert energy obtained from other sources into usable electrical power. They can generally obtain energy from batteries, fuel cells, generators, and alternators and can also be powered exclusively by solar power by using installations such as solar panels on the roof of buildings.

Whatever you need it for, Tester supplies a wide and ever-expanding range of DC Power Supplies perfect for use in a wide variety of different situations. The devices in our store generally come with incredibly useful features including adjustable parameters (meaning they can be used in different installations with some tweaking), and different ranges of capability.