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 Minimum Temperature Maximum Temperature Digital/Analogue
RS Stock No. 122-5035
BrandRS PRO
TWD14,371.00
Each
units
0 → 32V Multiple Output DC Power Supply - 1 A, 3A 4 Digital 212W 100 V ac, 110 V ac, 120 V ac, 220 V ac, 230V ac 1 IEC 320 4 mm Safety Socket 0°C +40°C Digital
RS Stock No. 667-7372
Mfr. Part No.E3644A
TWD41,625.00
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 4 A, 8A 1 Digital 80W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 690-9685
Mfr. Part No.N6752A
TWD68,069.00
Each
units
0 → 50V DC Power Module - 10A 1 Digital 100W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C Digital
RS Stock No. 667-7388
Mfr. Part No.E3647A
TWD44,553.00
Each
units
0 → 60V Programmable DC Power Supply - 500 mA, 800mA 2 Digital 28W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 705-5013
Mfr. Part No.PWS2326
BrandTektronix
TWD20,407.00
Each
units
0 → 30V Adjustable Power Supply - 6A 1 Digital - 110 V ac, 220V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 806-7477
Mfr. Part No.6230360
TWD292,571.00
Each
units
- Programmable DC Power Supply - 60A - Digital 10kW 500V 1 - Screw Terminal 0°C +50°C Digital
RS Stock No. 826-2701
Mfr. Part No.2231A-30-3
BrandKeithley
TWD25,993.00
Each
units
0 → 30V Triple Output DC Power Supply - 3A 3 Analogue, Digital 195W 110 → 230V ac 3 IEC 320 Binding Post Terminal 0°C +40°C Analogue, Digital
RS Stock No. 102-5995
Mfr. Part No.EA-PSI 9200-10 DT
TWD76,469.00
Each
units
0 → 200V Programmable DC Power Supply - 10A 1 Digital 640W 90 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°C Digital
RS Stock No. 806-7492
Mfr. Part No.EA-PSI 9500-90 3U
TWD417,495.00
Each
units
0 → 500V Programmable DC Power Supply - 90A 1 Digital 15kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C Digital
RS Stock No. 806-7525
Mfr. Part No.EA-PS 9080-340 3U
TWD232,253.00
Each
units
0 → 80V Laboratory Power Supply - 340A 1 Digital 10kW 340 → 460V ac 1 Wire Clamp 4 mm Safety Socket 0°C +50°C Digital
RS Stock No. 806-7531
Mfr. Part No.EA-PS 9500-60 3U
TWD253,775.00
Each
units
0 → 500V Laboratory Power Supply - 60A 1 Digital 10kW 340 → 460V ac 1 Wire Clamp 4 mm Safety Socket 0°C +50°C Digital
RS Stock No. 130-1821
Mfr. Part No.EA-PS-1501T
TWD3,046.00
Each
units
2.5 → 15V Universal Power Supply - 1A 1 Analogue 15W 100 → 253V ac - IEC 320 4 mm Safety Socket 0°C +45°C Analogue
RS Stock No. 806-7506
Mfr. Part No.EA-PSI 91500-30 3U
TWD456,290.00
Each
units
0 → 1500V Programmable DC Power Supply - 30A 1 Digital 15kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C Digital
RS Stock No. 806-7562
Mfr. Part No.EA-PS 9500-90 3U
TWD374,411.00
Each
units
0 → 500V Laboratory Power Supply - 90A 1 Digital 15kW 340 → 460V ac 1 Wire Clamp 4 mm Safety Socket 0°C +50°C Digital
RS Stock No. 667-7384
Mfr. Part No.E3646A
TWD44,553.00
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 1.5 A, 3A 2 Digital 24W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 102-5993
Mfr. Part No.EA-PSI 9040-40 DT
TWD76,469.00
Each
units
0 → 40V Programmable DC Power Supply - 40A 1 Digital 640W 90 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°C Digital
RS Stock No. 716-7380
Mfr. Part No.EA-PS 2084-03B
TWD8,537.00
Each
units
0 → 84V Laboratory Power Supply - 3A 1 Digital 100W 90 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C Digital
RS Stock No. 705-5016
Mfr. Part No.PWS2721
BrandTektronix
TWD16,893.00
Each
units
0 → 72V Adjustable Power Supply - 1.5A 1 Digital - 110 V ac, 220V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 806-7543
Mfr. Part No.EA-PS 91000-30 3U
TWD283,954.00
Each
units
0 → 1000V Laboratory Power Supply - 0 → 30A 1 Digital 10kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C Digital
RS Stock No. 437-9007
Mfr. Part No.EX4210R
BrandAim-TTi
TWD22,119.00
Each
units
0 → 42V - - 0 → 10A 1 Digital 420W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C -