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. 121-7526
Mfr. Part No.BK1673
R 18,406.98
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. 360-0007
Mfr. Part No.AT5VD
BrandKert
R 2,670.94
Each
units
0 → 15V - - 5A 1 Digital - 230V ac 1 IEC 320 Binding Post Terminal - -10°C +40°C
RS stock no. 123-3565
BrandRS PRO
R 5,896.42
Each
units
0 → 30V Laboratory Power Supply - 3A 2 Digital 180W 100 → 230V ac 4 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS stock no. 806-7565
Mfr. Part No.EA-PS 9750-60 3U
R 183,092.52
Each
units
0 → 750V Laboratory Power Supply - 60A 1 Digital 15kW 340 → 460V ac 1 Wire Clamp 4 mm Safety Socket - 0°C +50°C
RS stock no. 121-7577
Mfr. Part No.BK9801
R 41,983.50
Each
units
300V AC Power Source - 3A 1 Digital 300VA 110 V ac, 220V ac 3 IEC 320 Universal Output Plug - 0°C +40°C
RS stock no. 303-0363
Mfr. Part No.K-AT5V
BrandKert
R 2,211.31
Each
units
24V Stabilised Power Supply - 4 A, 5A 1 Analogue - 230V ac - Schuko Plug Binding Post Terminal - -10°C +40°C
RS stock no. 123-3564
BrandRS PRO
R 5,320.70
Each
units
0 → 30V - - 3A 1 Digital 90W 100 → 240V ac 2 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS stock no. 885-3708
Mfr. Part No.E3631A + AT90DH
R 22,602.19
1 Kit
Kit(s)
6 V, 25 V - - 1 A, 5 A 3 Digital 80W 100 V ac, 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 731-2842
Mfr. Part No.CPX400D
BrandAim-TTi
R 22,922.50
Each
units
0 → 60V Adjustable Power Supply - 0 → 20A 2 Digital 420W 110 → 240V ac 4 IEC 320 Binding Post Terminal - +5°C +40°C
RS stock no. 123-3566
BrandRS PRO
R 7,700.50
Each
units
0 → 30V - - 3A 3 Digital, Linear 195W 100 → 230V ac 4 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS stock no. 123-6467
BrandRS PRO
R 8,465.00
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. 716-7377
Mfr. Part No.EA-PS 2042-06B
R 4,394.56
Each
units
0 → 42V Laboratory Power Supply - 6A 1 Digital 100W 90 → 264V ac 1 IEC 320 4 mm Safety Socket - 0°C +50°C
RS stock no. 817-2226
Mfr. Part No.BK1671A
R 5,663.50
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. 456-7872
Mfr. Part No.EA-3050B
R 10,987.25
Each
units
0 → 30V Adjustable Power Supply - 5 A, 500mA 4 Digital 150W 230V ac 2 IEC 320 4 mm Safety Socket - 0°C +40°C
RS stock no. 123-3559
BrandRS PRO
R 9,556.50
Each
units
0 → 30V - - 3A 3 Digital 195W 100 → 230V ac 4 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 707-2857
Mfr. Part No.CPX400DP
BrandAim-TTi
R 26,689.00
Each
units
0 → 60V Programmable DC Power Supply - 0 → 20A 2 Digital 840W 110 → 240V ac 4 IEC 320 Binding Post Terminal - +5°C +40°C
RS stock no. 123-3569
BrandRS PRO
R 6,190.90
Each
units
0 → 20V Switching Power Supply - 10A 1 Digital 200W 115 V ac, 230V ac 1 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS stock no. 122-5037
BrandRS PRO
R 6,578.69
Each
units
0 → 30V Multiple Output DC Power Supply - 3A 2 Digital 192W 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
RS stock no. 716-7371
Mfr. Part No.EA-PS 2042-10B
R 5,411.16
Each
units
0 → 42V Laboratory Power Supply - 10A 1 Digital 160W 90 → 264V ac 1 IEC 320 4 mm Safety Socket - 0°C +50°C
RS stock no. 123-6468
BrandRS PRO
R 9,712.00
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