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 Minimum Temperature Maximum Temperature Digital/Analogue
RS Stock No. 667-7340
Mfr. Part No.E3620A
$1,092.31
Each
units
0 → 25V Dual Range Power Supply - 1A 2 Digital 25W 115V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 667-2585
Mfr. Part No.U8002A
$885.24
Each
units
0 → 30V Adjustable Power Supply - 5A 1 Digital 150W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 667-7381
Mfr. Part No.E3645A
$1,779.49
Each
units
0 → 60V Programmable DC Power Supply - 1.1 A, 2.2A 1 Digital 80W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 667-7384
Mfr. Part No.E3646A
$1,903.59
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 1.5 A, 3A 2 Digital 24W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 667-7390
Mfr. Part No.E3649A
$2,280.00
Each
units
0 → 35V Programmable DC Power Supply - 1.4 A, 800mA 2 Digital 49W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 501-178
Mfr. Part No.E3633A
$2,518.10
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 10 A, 20A 1 Digital 160W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 667-2581
Mfr. Part No.U8001A
$790.05
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 Digital
RS Stock No. 501-229
Mfr. Part No.E3634A
$2,518.10
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 Digital
RS Stock No. 667-7362
Mfr. Part No.E3640A
$1,520.00
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 1.5 A, 3A 1 Digital 30W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 745-2394
Mfr. Part No.U8031A
$2,339.65
Each
units
0 → 30V Triple Output DC Power Supply - 3 A, 6A 3 Digital 375W 100 V ac, 120 V ac, 230 V ac, 240V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 184-3986
Mfr. Part No.AC6803B
$13,100.00
Each
units
310V AC Power Source - 10A 1 - 2000VA 180 → 264V ac 1 BNC RJ45 0°C +40°C Analogue, Digital
RS Stock No. 187-3439
Mfr. Part No.E36234A
$4,216.00
Each
units
0 → 60V dc Autoranging Power Supply - 0 → 10A 2 Digital 400W 100 → 240V ac 2 - - 0°C +40°C Digital
RS Stock No. 136-8576
Mfr. Part No.E36313A
$2,805.13
Each
units
0 → 6V Programmable DC Power Supply - 2 A, 10A 3 Digital 160W 230V ac 3 2 Wire, 4 Wire USB 0°C +40°C Digital
RS Stock No. 745-2398
Mfr. Part No.U8032A
$2,339.65
Each
units
0 → 60V Triple Output DC Power Supply - 3A 3 Digital 375W 100 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 187-3437
Mfr. Part No.E36232A
$2,424.00
Each
units
0 → 60V dc Autoranging Power Supply - 0 → 10A 1 Digital 200W 100 → 240V ac 1 - - 0°C +40°C Digital
RS Stock No. 184-3985
Mfr. Part No.AC6802B
$7,612.00
Each
units
310V AC Power Source - 5A 1 - 1000VA 180 → 264V ac 1 BNC RJ45 0°C +40°C Analogue, Digital
RS Stock No. 187-3436
Mfr. Part No.E36231A
$2,424.00
Each
units
30V Autoranging Power Supply - 0 → 20A 1 Digital 200W 100 → 240V ac 1 - - 0°C +40°C Digital
RS Stock No. 690-9663
Mfr. Part No.N6742B
$1,906.17
Each
units
8V DC Power Module - 12.5A 1 Digital 100W 100 → 240V ac 2 - - 0°C +55°C Digital
RS Stock No. 184-3984
Mfr. Part No.AC6801B
$5,570.00
Each
units
310V AC Power Source - 2.5A 1 - 500VA 180 → 264V ac 1 BNC RJ45 0°C +40°C Analogue, Digital
RS Stock No. 175-1803
Mfr. Part No.E36104B
$1,482.00
Each
units
35V Programmable DC Power Supply - 1A 1 Digital 35W 100 V ac, 115 V ac, 230V ac 1 IEC 320-C14 - 0°C +40°C Digital