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. 878-2075
Mfr. Part No.BK9205
MYR7,573.58
Each
units
60V Programmable DC Power Supply - 25A 1 Digital 600W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 622-3287
Mfr. Part No.HM8143
MYR18,405.33
Each
units
0 → 30V Triple Power Supply - 2A 3 Digital 60W 103 → 253V ac 2 IEC 320 4 mm Safety Socket - - -
RS Stock No. 817-2226
Mfr. Part No.BK1671A
MYR1,290.31
Each
units
30V Triple Output DC Power Supply - 5A 3 Digital 158W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 123-6467
BrandRS PRO
MYR1,998.75
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. 878-2081
Mfr. Part No.BK1747
MYR5,727.80
Each
units
60V Dual Range Power Supply - 10A 1 Digital 350W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 665-4909
Mfr. Part No.EX355R
BrandAim-TTi
MYR2,084.41
Each
units
0 → 35V Laboratory Power Supply - 5A 1 Digital 175W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 388-2726
Mfr. Part No.EX752M
BrandAim-TTi
MYR3,409.69
Each
units
0 → 75V - - 2 A, 4 A 2 Digital 300W 115 V ac, 230 V ac 4 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 123-3559
BrandRS PRO
MYR1,943.69
Each
units
0 → 30V - - 3A 3 Digital 195W 100 → 230V ac 4 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 122-5038
BrandRS PRO
MYR1,345.09
Each
units
0 → 30V - - 6A 1 Digital 192W 100 V ac, 110 → 120 V ac, 120 V ac, 220 V ac, 220 → 240 V ac, 230 V ac 1 IEC 320 4 mm Safety Socket - 0°C +40°C
RS Stock No. 123-3578
BrandRS PRO
MYR2,141.10
Each
units
0 → 36V Switching Power Supply - 10A 1 Digital 360W 115 V ac, 230V ac 2 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 123-3561
BrandRS PRO
MYR2,374.35
Each
units
0 → 30V Programmable DC Power Supply - 1 A, 3A 4 Digital 195W 100 → 230V ac 4 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 731-2858
Mfr. Part No.QPX1200S
BrandAim-TTi
MYR7,636.13
Each
units
0 → 60V Laboratory Power Supply - 0 → 50A 1 Digital 1.2kW 110 → 240V ac 1 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 805-2484
Mfr. Part No.EA-PSI 5040-40 A
MYR4,671.76
Each
units
0 → 40V Programmable DC Power Supply - 40A 1 Analogue, Digital 640W 90 → 264V ac 1 IEC 320 Binding Post Terminal - 0°C +50°C
RS Stock No. 493-8022
Mfr. Part No.PS 3032-05B
MYR1,904.42
Each
units
0 → 30V Laboratory Power Supply - 5A 1 Digital 160W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 493-7934
Mfr. Part No.PS 3150-04B
MYR4,815.12
Each
units
0 → 150V Laboratory Power Supply - 4A 1 Digital 640W 90 → 264V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 705-5022
Mfr. Part No.PWS4323
BrandTektronix
MYR5,461.71
Each
units
0 → 30V Programmable DC Power Supply - 3A 1 Digital 96W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 878-2072
Mfr. Part No.BK1715A
MYR2,398.18
Each
units
60V DC Power Source - 2A 1 Digital 120W 120 V ac, 220V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 737-7180
Mfr. Part No.CPX400SP
BrandAim-TTi
MYR4,848.24
Each
units
0 → 60V Programmable DC Power Supply - 0 → 20A 1 Digital 420W 110 → 240V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 123-3558
BrandRS PRO
MYR1,880.99
Each
units
0 → 30V Programmable DC Power Supply - 3A 2 Digital 180W 100 → 230V ac 4 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 705-5013
Mfr. Part No.PWS2326
BrandTektronix
MYR3,043.31
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