Bench Power Supplies

A bench power supply is an essential piece of equipment if you do a lot of electronics or other powered projects on your bench and need a reliable source of power at different voltages. They are very useful tools in testing circuits, as they allow you to adjust the voltage to a specific value depending on what project you are working on. A variable DC bench power supply also allows you to set a maximum current, so if there is a short circuit in your project the bench supply will shut down hopefully preventing any harm to some components in your project. Bench power supplies are versatile, accurate and stable and don’t cost too much.

When it comes to power you have 4 units to be aware of, Current, Voltage, Power and Resistance. It's very important that if you are supplying your circuit with some voltage, your supply can keep up with the current drawn.

Types Of Power Supplies

There are two basic types of power supplies in common use: linear and switch-mode. Both are available for use as bench DC power supplies.

Linear power supplies operate by rectifying AC line power to create DC and then filtering and regulating it to produce a user-selectable voltage or current levels. Linear supplies are heavier because the 50 Hz or 60 Hz transformer and associated filters are physically larger.

Switch-mode power supplies start out the same way, rectifying and filtering AC line input voltage, however, they chop (or "switch") the DC into high-frequency AC. Switch-mode power supplies are significantly smaller, lighter and more efficient than linear power supplies, so they have replaced linear supplies in many applications.

Areas of application:

  • General laboratory
  • Education
  • Industry
  • Research
  • Production
  • Workshops

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Description Price Output Voltage Bench Power Supply Type Model Number Output Current Number of Outputs Type Power Rating Supply Voltage Number of Displays Input Connector Output Connector Calibrated Minimum Temperature Maximum Temperature
RS Stock No. 805-2450
Mfr. Part No.EA-PS 5080-20 A
€825.00
Each
units
0 → 80V Laboratory Power Supply - 20A 1 Analogue, Digital 640W 90 → 264V ac 1 IEC 320 Binding Post Terminal - 0°C +50°C
RS Stock No. 803-6280
Mfr. Part No.5100307
€893.00
Each
units
0 → 80V Laboratory Power Supply - 0 → 20A 1 Analogue, Digital 0 → 640W 90 → 264V 1 - - RSCAL 0°C +50°C
RS Stock No. 803-6284
Mfr. Part No.5100307
€908.00
Each
units
0 → 80V Laboratory Power Supply - 0 → 20A 1 Analogue, Digital 0 → 640W 90 → 264V 1 - - UKAS 0°C +50°C
RS Stock No. 123-6468
BrandRS PRO
€439.00
Each
units
0 → 32V Programmable DC Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 123-6650
BrandRS PRO
€522.00
Each
units
2 x 0 → 32 V, 2.5 → 5V Programmable Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 CEE 7/7 German Schuko / French LAN, USB UKAS 0°C +40°C
RS Stock No. 123-6649
BrandRS PRO
€507.00
Each
units
2 x 0 → 32 V, 2.5 → 5V Programmable Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 CEE 7/7 German Schuko / French LAN, USB RSCAL 0°C +40°C
RS Stock No. 668-1545
Mfr. Part No.EL302RT
BrandAim-TTi
€529.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 668-1554
Mfr. Part No.EL302RT
BrandAim-TTi
€544.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 665-4906
Mfr. Part No.EL302RT
BrandAim-TTi
€461.00
Each
units
0 → 30V Laboratory Power Supply - 2A 3 Digital 130W 115 V ac, 230V ac 4 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 122-1975
Mfr. Part No.BK1673
€943.00
Each
units
2 x 0 → 32V, 5 V Triple Output DC Power Supply - 2 x 0 → 6A, 3 A 3 Digital 400W 115 → 230V ac 4 - - UKAS 10°C 40°C
RS Stock No. 121-7526
Mfr. Part No.BK1673
€860.00
Each
units
32V Triple Output DC Power Supply - 6A 3 Digital 399W 115 V ac, 230V ac 4 IEC 320 4 mm Safety Socket - +10°C +40°C
RS Stock No. 122-1974
Mfr. Part No.BK1673
€928.00
Each
units
2 x 0 → 32V, 5 V Triple Output DC Power Supply - 2 x 0 → 6A, 3 A 3 Digital 400W 115 → 230V ac 4 - - RSCAL 10°C 40°C
RS Stock No. 668-1560
Mfr. Part No.EX354RD
BrandAim-TTi
€626.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 668-1563
Mfr. Part No.EX354RD
BrandAim-TTi
€641.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 125-0814
Mfr. Part No.EX354RD
BrandAim-TTi
€626.00
Each
units
0 → 35V Laboratory Power Supply - 0 → 4A 2 Digital 280W 110 → 240V ac 4 - Binding Post Terminal RSCAL +5°C +40°C
RS Stock No. 665-4903
Mfr. Part No.EX354RD
BrandAim-TTi
€558.00
Each
units
0 → 35V - - 0 → 4A 2 Digital 280W 110 → 240V ac 4 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 125-0815
Mfr. Part No.EX354RD
BrandAim-TTi
€641.00
Each
units
0 → 35V Laboratory Power Supply - 0 → 4A 2 Digital 280W 110 → 240V ac 4 - Binding Post Terminal UKAS +5°C +40°C
RS Stock No. 123-6635
BrandRS PRO
€455.00
Each
units
2 x 0 → 32 V, 2.5 → 5V Programmable Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 CEE 7/7 German Schuko / French LAN, USB RSCAL 0°C +40°C
RS Stock No. 123-6636
BrandRS PRO
€470.00
Each
units
2 x 0 → 32 V, 2.5 → 5V Programmable Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 CEE 7/7 German Schuko / French LAN, USB UKAS 0°C +40°C
RS Stock No. 123-6467
BrandRS PRO
€387.00
Each
units
0 → 32V Programmable DC Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C