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. 671-8750
Mfr. Part No.N5765A
kr 32 788,14
Each
Units
0 → 30V Programmable DC Power Supply - 50A 1 Digital 1.5kW 85 → 265V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 745-2398
Mfr. Part No.U8032A
kr 14 437,22
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
RS Stock No. 792-1370
Mfr. Part No.E3648A
kr 12 286,31
Each
Units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 2 Digital 40W 110 V ac, 230V ac 2 - - UKAS 0°C +55°C
RS Stock No. 667-7397
Mfr. Part No.E3648A
kr 14 252,41
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. 792-1456
Mfr. Part No.E3642A
kr 8 079,65
Each
Units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 1 Digital 40W 110 V ac, 230V ac 2 - - RSCAL 0°C +55°C
RS Stock No. 792-1361
Mfr. Part No.E3648A
kr 12 077,31
Each
Units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 2 Digital 40W 110 V ac, 230V ac 2 - - RSCAL 0°C +55°C
RS Stock No. 667-7344
Mfr. Part No.E3630A
kr 6 827,24
Each
Units
0 → 20 V, 0 → 6V Triple Output DC Power Supply - 2.5 A, 500mA 3 Digital 15W 115V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 501-229
Mfr. Part No.E3634A
kr 15 720,04
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. 792-1086
Mfr. Part No.E3645A
kr 9 445,43
Each
Units
0 → 35 V, 0 → 60V Programmable DC Power Supply - 1.3 A, 2.2A 1 Digital 80W 110 V ac, 230V ac 2 - - RSCAL 0°C +55°C
RS Stock No. 524-701
Mfr. Part No.E3634A
kr 16 442,04
Each
Units
0 → 25 V, 0 → 50V Programmable DC Power Supply - 4 A, 7A 1 Digital 175W 110 V ac, 230V ac 2 - - UKAS 0°C +55°C
RS Stock No. 667-7375
Mfr. Part No.E3642A
kr 9 490,73
Each
Units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 1 Digital 40W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 792-1285
Mfr. Part No.E3649A
kr 12 077,31
Each
Units
0 → 35 V, 0 → 60V Programmable DC Power Supply - 1.4 A, 800mA 2 Digital 49W 110 V ac, 230V ac 2 - - RSCAL 0°C +55°C
RS Stock No. 792-1465
Mfr. Part No.E3642A
kr 8 288,65
Each
Units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 1 Digital 40W 110 V ac, 230V ac 2 - - UKAS 0°C +55°C
RS Stock No. 792-1080
Mfr. Part No.E3645A
kr 9 654,43
Each
Units
0 → 35 V, 0 → 60V Programmable DC Power Supply - 1.3 A, 2.2A 1 Digital 80W 110 V ac, 230V ac 2 - - UKAS 0°C +55°C
RS Stock No. 792-1263
Mfr. Part No.E3630A
kr 7 549,24
Each
Units
0 → 6V, 0 → ±20 V Triple Output DC Power Supply - 0 → 2.5 A, 0 → 500mA 3 Digital 15W 115V ac 2 - - UKAS 0°C +55°C
RS Stock No. 792-1288
Mfr. Part No.E3649A
kr 12 286,31
Each
Units
0 → 35 V, 0 → 60V Programmable DC Power Supply - 1.4 A, 800mA 2 Digital 49W 110 V ac, 230V ac 2 - - UKAS 0°C +55°C
RS Stock No. 667-7381
Mfr. Part No.E3645A
kr 11 121,44
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
RS Stock No. 667-7390
Mfr. Part No.E3649A
kr 14 252,41
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
RS Stock No. 524-783
Mfr. Part No.E3634A
kr 16 233,04
Each
Units
0 → 25 V, 0 → 50V Programmable DC Power Supply - 4 A, 7A 1 Digital 175W 110 V ac, 230V ac 2 - - RSCAL 0°C +55°C
RS Stock No. 792-1254
Mfr. Part No.E3630A
kr 7 340,24
Each
Units
0 → 6V, 0 → ±20 V Triple Output DC Power Supply - 0 → 2.5 A, 0 → 500mA 3 Digital 15W 115V ac 2 - - RSCAL 0°C +55°C