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 Output Current Number of Outputs Type Power Rating Supply Voltage Number of Displays Input Connector Output Connector Minimum Temperature Maximum Temperature
RS Stock No. 758-1121
Mfr. Part No.2200-30-5
BrandKeithley
$2,161.53
Each
units
0 → 30V 5A 1 Digital 150W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 711-6758
Mfr. Part No.EA-PSI 8080-170 3U
$6,605.52
Each
units
0 → 80V 170A 1 Digital 5kW 340 → 460V ac 1 IEC 320 Binding Post Terminal 0°C +50°C
RS Stock No. 845-6754
Mfr. Part No.AL841C
BrandELC
$93.82
Each
units
3 → 12V 1A 1 Analogue 12W 198 → 264V ac - IEC 320 4 mm Safety Socket - -
RS Stock No. 806-7458
Mfr. Part No.EA-PSI 9750-20 3U
$9,062.85
Each
units
0 → 750V 20A 1 Digital 5kW 340 → 460V ac 1 IEC 320 Screw Terminal 0°C +50°C
RS Stock No. 806-7442
Mfr. Part No.EA-PSI 9200-70 3U
$8,017.78
Each
units
0 → 200V 70A 1 Digital 5kW 340 → 460V ac 1 IEC 320 Screw Terminal 0°C +50°C
RS Stock No. 667-7340
Mfr. Part No.E3620A
$1,004.10
Each
units
0 → 25V 1A 2 Digital 25W 115V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 667-2585
Mfr. Part No.U8002A
$812.31
Each
units
0 → 30V 5A 1 Digital 150W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 537-5371
BrandRS PRO
$300.04
Each
units
27V 2A 1 Analogue - 230V ac - IEC 320 Screw Terminal - -
RS Stock No. 705-5029
Mfr. Part No.PWS4305
BrandTektronix
$1,785.28
Each
units
0 → 30V 5A 1 Digital 150W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 506-6500
Mfr. Part No.ALF1205
BrandELC
$126.35
Each
units
10 → 15V 5A 1 Analogue 60W 190 → 253V ac - IEC 320 4 mm Safety Socket - -
RS Stock No. 667-7381
Mfr. Part No.E3645A
$1,701.33
Each
units
0 → 60V 1.1 A, 2.2 A 1 Digital 80W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 806-7543
Mfr. Part No.EA-PS 91000-30 3U
$13,106.80
Each
units
0 → 1000V 0 → 30A 1 Digital 10kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C
RS Stock No. 705-5010
Mfr. Part No.PWS4205
BrandTektronix
$1,504.95
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. 825-2697
Mfr. Part No.2280S-32-6
BrandKeithley
$3,094.72
Each
units
0 → 30V 6A 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. 705-5013
Mfr. Part No.PWS2326
BrandTektronix
$839.94
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. 705-5026
Mfr. Part No.PWS4602
BrandTektronix
$1,785.28
Each
units
0 → 60V 2.5A 1 Digital 150W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 806-7528
Mfr. Part No.EA-PS 9750-20 3U
$6,514.40
Each
units
0 → 750V 20A 1 Digital 5kW 340 → 460V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C
RS Stock No. 705-5016
Mfr. Part No.PWS2721
BrandTektronix
$711.16
Each
units
0 → 72V 1.5A 1 Digital - 110 V ac, 220 V ac 2 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 667-2581
Mfr. Part No.U8001A
$674.13
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. 537-5365
BrandRS PRO
$289.38
Each
units
13.5V 4A 1 Analogue - 230V ac - - Screw Terminal - -
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