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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Viewing 1 - 20 of 25 products
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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. 826-2701
Mfr. Part No.2231A-30-3
BrandKeithley
R 13,870.00
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
RS stock no. 760-0304
Mfr. Part No.6221
BrandKeithley
R 137,917.35
Each
units
105V AC and DC Current Source - 4 pA → 210mA 4 Digital 11W 100 → 240V ac - IEC 320 DB9 - 0°C +50°C
RS stock no. 825-2690
Mfr. Part No.2280S-60-3
BrandKeithley
R 36,969.91
Each
units
0 → 60V Programmable DC Power Supply - 3.2A 1 Digital 192W 100 V ac, 120 V ac, 220 V ac, 230V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 825-2697
Mfr. Part No.2280S-32-6
BrandKeithley
R 37,059.91
Each
units
0 → 30V Programmable DC Power Supply - 6A 1 Digital 192W 100 V ac, 120 V ac, 220 V ac, 230V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 895-2413
Mfr. Part No.2260B-30-108
BrandKeithley
R 47,988.39
Each
units
0 → 30V Programmable DC Power Supply - 108A 1 Digital 1.1kW 80 → 265V ac 1 IEC 320 Screw Terminal - - -
RS stock no. 895-2394
Mfr. Part No.2260B-800-2
BrandKeithley
R 50,934.40
Each
units
0 → 800V Programmable DC Power Supply - 2.88A 1 Digital 720W 80 → 265V ac 1 IEC 320 Plug-In Terminal Block - - -
RS stock no. 800-3189
Mfr. Part No.2230G-30-1
BrandKeithley
R 25,036.61
Each
units
0 → 30 V, 0 → 6V Programmable DC Power Supply - 1.5 A, 5A 3 Digital 450VA 240V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 768-3435
Mfr. Part No.2230-30-1
BrandKeithley
R 20,917.28
Each
units
0 → 30 V, 0 → 6V Programmable DC Power Supply - 1A 3 Digital 120W 120 V ac, 240V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 895-2410
Mfr. Part No.2260B-80-40
BrandKeithley
R 47,988.39
Each
units
0 → 80V Programmable DC Power Supply - 40.5A 1 Digital 1.1kW 80 → 265V ac 1 IEC 320 Screw Terminal - - -
RS stock no. 758-1121
Mfr. Part No.2200-30-5
BrandKeithley
R 22,640.14
Each
units
0 → 30V Programmable DC Power Supply - 5A 1 Digital 150W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 758-1127
Mfr. Part No.2200-20-5
BrandKeithley
R 16,390.76
Each
units
0 → 20V Programmable DC Power Supply - 5A 1 Digital 100W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 895-2388
Mfr. Part No.2281S-20-6
BrandKeithley
R 55,860.40
Each
units
0 → 20V Precision DC Power Supply - 6A 1 3 in 1 120W 240V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 176-6013
Mfr. Part No.2230G-30-3
BrandKeithley
R 26,382.02
Each
units
0 → 30V Programmable DC Power Supply - 3A 3 Digital 195W 110 V ac, 220V ac 2 3-Pin Socket (Power Cord) USB - 0°C +40°C
RS stock no. 813-3625
Mfr. Part No.2260B-30-36
BrandKeithley
R 27,377.67
Each
units
0 → 30V Programmable DC Power Supply - 36A 1 Digital 360W 100 → 240V ac 1 IEC 320 Plug-In Terminal Block - - -
RS stock no. 800-3186
Mfr. Part No.2220G-30-1
BrandKeithley
R 22,575.90
Each
units
0 → 30V Programmable DC Power Supply - 1.5A 2 Digital 350VA 240V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 758-1130
Mfr. Part No.2200-32-3
BrandKeithley
R 19,523.24
Each
units
0 → 30V Programmable DC Power Supply - 0 → 3A 1 Digital 96W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS stock no. 895-2404
Mfr. Part No.2260B-250-9
BrandKeithley
R 48,883.81
Each
units
0 → 250V Programmable DC Power Supply - 9A 1 Digital 720W 80 → 265V ac 1 IEC 320 Plug-In Terminal Block - - -
RS stock no. 813-3631
Mfr. Part No.2260B-80-27
BrandKeithley
R 32,580.51
Each
units
0 → 80V Programmable DC Power Supply - 27A 1 Digital 720W 100 → 240V ac 1 IEC 320 Plug-In Terminal Block - - -
RS stock no. 813-3622
Mfr. Part No.2260B-80-13
BrandKeithley
R 27,377.67
Each
units
0 → 80V Programmable DC Power Supply - 13.5A 1 Digital 360W 100 → 240V ac 1 IEC 320 Plug-In Terminal Block - - -
RS stock no. 176-6014
Mfr. Part No.2230G-30-6
BrandKeithley
R 31,508.50
Each
units
0 → 30V Programmable DC Power Supply - 4 A, 6A 3 Digital 375W 110 V ac, 220V ac 2 3-Pin Socket (Power Cord) USB - 0°C +40°C