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.

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 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 Model Number Output Current Number of Outputs Type Power Rating Supply Voltage Number of Displays Input Connector Output Connector Minimum Temperature Maximum Temperature
RS Stock No. 123-3564
BrandRS PRO
TWD8,448.00
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. 705-5010
Mfr. Part No.PWS4205
BrandTektronix
TWD34,967.00
Each
units
0 → 20V - 5A 1 Digital 100W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 155-399
Mfr. Part No.PL303
BrandAim-TTi
TWD13,332.00
Each
units
0 → 30V - 0 → 3A 1 Digital 90W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 707-2857
Mfr. Part No.CPX400DP
BrandAim-TTi
TWD52,677.00
Each
units
0 → 60V - 0 → 20A 2 Digital 840W 110 → 240V ac 4 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 667-2581
Mfr. Part No.U8001A
TWD15,965.00
Each
units
0 → 30V - 3A 1 Digital 90W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 760-0304
Mfr. Part No.6221
BrandKeithley
TWD272,116.00
Each
units
105V - 4 pA → 210 mA 4 Digital 11W 100 → 240V ac - IEC 320 DB9 0°C +50°C
RS Stock No. 803-0122
Mfr. Part No.EA-PSI 9080-120 2U
TWD147,688.00
Each
units
0 → 80V - 120A 1 Analogue, Digital 0 → 3000W 180 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°C
RS Stock No. 758-1127
Mfr. Part No.2200-20-5
BrandKeithley
TWD37,031.00
Each
units
0 → 20V - 5A 1 Digital 100W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 690-9672
Mfr. Part No.N6743B
TWD38,534.00
Each
units
0 → 20V - 5A 1 Digital 100W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 667-7375
Mfr. Part No.E3642A
TWD34,991.00
Each
units
0 → 20 V, 0 → 8 V - 2.5 A, 5 A 1 Digital 40W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 825-2690
Mfr. Part No.2280S-60-3
BrandKeithley
TWD74,091.00
Each
units
0 → 60V - 3.2A 1 Digital 192W 100 V ac, 120 V ac, 220 V ac, 230 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 806-7565
Mfr. Part No.EA-PS 9750-60 3U
TWD387,356.00
Each
units
0 → 750V - 60A 1 Digital 15kW 340 → 460V ac 1 Wire Clamp 4 mm Safety Socket 0°C +50°C
RS Stock No. 667-7397
Mfr. Part No.E3648A
TWD53,490.00
Each
units
0 → 20 V, 0 → 8 V - 2.5 A, 5 A 2 Digital 40W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 123-3563
BrandRS PRO
TWD7,072.00
Each
units
0 → 30V - 3A 1 Analogue 90W 100 → 240V ac 2 IEC 320 Plug-In Terminal Block 0°C +40°C
RS Stock No. 667-7390
Mfr. Part No.E3649A
TWD51,616.00
Each
units
0 → 35V - 1.4 A, 800 mA 2 Digital 49W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 895-2394
Mfr. Part No.2260B-800-2
BrandKeithley
TWD102,660.00
Each
units
0 → 800V - 2.88A 1 Digital 720W 80 → 265V ac 1 IEC 320 Plug-In Terminal Block - -
RS Stock No. 690-9685
Mfr. Part No.N6752A
TWD65,857.00
Each
units
0 → 50V - 10A 1 Digital 100W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 667-7372
Mfr. Part No.E3644A
TWD40,283.00
Each
units
0 → 20 V, 0 → 8 V - 4 A, 8 A 1 Digital 80W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 705-5013
Mfr. Part No.PWS2326
BrandTektronix
TWD19,968.00
Each
units
0 → 30V - 6A 1 Digital - 110 V ac, 220 V ac 2 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 667-2585
Mfr. Part No.U8002A
TWD20,006.00
Each
units
0 → 30V - 5A 1 Digital 150W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C