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. 826-2701
Mfr. Part No.2231A-30-3
BrandKeithley
PHP55,838.90
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. 493-7934
Mfr. Part No.PS 3150-04B
PHP53,782.81
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. 122-5037
BrandRS PRO
PHP20,475.68
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. 817-2229
Mfr. Part No.BK1687B
PHP26,879.58
Each
units
36V Switching Power Supply - 10A 1 Digital 360W 100 V ac, 240V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 667-2581
Mfr. Part No.U8001A
PHP32,180.82
Each
units
0 → 30V Adjustable Power Supply - 3A 1 Digital 90W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 121-7585
Mfr. Part No.BK9129B
PHP53,462.33
Each
units
30V Programmable DC Power Supply - 3A 3 Digital 195W 110 V ac, 220V ac 6 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 671-8716
Mfr. Part No.N5745A
PHP202,293.42
Each
units
0 → 30V Programmable DC Power Supply - 25A 1 Digital 750W 85 → 265V ac 2 IEC 320 Screw Terminal - 0°C +55°C
RS Stock No. 155-399
Mfr. Part No.PL303
BrandAim-TTi
PHP31,862.99
Each
units
0 → 30V Precision DC Power Supply - 0 → 3A 1 Digital 90W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 493-8022
Mfr. Part No.PS 3032-05B
PHP31,667.58
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. 667-7397
Mfr. Part No.E3648A
PHP92,089.50
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 2 Digital 40W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 123-3566
BrandRS PRO
PHP22,765.11
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. 437-9007
Mfr. Part No.EX4210R
BrandAim-TTi
PHP46,615.77
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
RS Stock No. 123-3564
BrandRS PRO
PHP15,520.08
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. 501-229
Mfr. Part No.E3634A
PHP114,861.60
Each
units
0 → 50V Programmable DC Power Supply - 4 A, 7A 1 Digital 175W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 665-4909
Mfr. Part No.EX355R
BrandAim-TTi
PHP33,227.15
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. 705-5022
Mfr. Part No.PWS4323
BrandTektronix
PHP77,843.85
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. 501-174
Mfr. Part No.E3632A
PHP95,660.88
Each
units
0 → 30V Programmable DC Power Supply - 4 A, 7A 1 Digital 120W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 123-3578
BrandRS PRO
PHP32,450.80
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. 121-7561
Mfr. Part No.XLN10014
PHP177,627.35
Each
units
100V - - 14.4A 1 Digital 1.4kW 100 V ac, 240 V ac 2 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 360-0007
Mfr. Part No.AT5VD
BrandKert
PHP7,670.76
Each
units
0 → 15V - - 5A 1 Digital - 230V ac 1 IEC 320 Binding Post Terminal - -10°C +40°C