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. 174-2916
Mfr. Part No.HMP2030
TWD61,320.00
Each
units
0 → 30V Programmable DC Power Supply - 5A 3 Digital 188W 230V ac 1 IEC 320-C14 4 mm Safety Socket +5°C +40°C Digital
RS Stock No. 201-2851
Mfr. Part No.EA-PSB 9750-20 3U
TWD291,890.00
Each
units
750V Programmable Bi-Directional - 20A 1 Digital 2.5kW - - - - - - Digital
RS Stock No. 184-0727
Mfr. Part No.N6791A
TWD69,961.00
Each
units
- DC Electronic Load Module - - 1 DC Electronic Load Module 100W 0 → 60V - - - 0°C +55°C -
RS Stock No. 117-6781
Mfr. Part No.PMX18-5A
TWD22,549.00
Each
units
0 → 18V Compact DC Power Supply - 5A 1 Digital 90W 100V ac 1 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 878-2069
Mfr. Part No.BK1672
TWD21,241.00
Each
units
32V Triple Output DC Power Supply - 3A 3 Digital 207W 115 V ac, 230V ac 4 IEC 320 4 mm Safety Socket +10°C +40°C Digital
RS Stock No. 667-7366
Mfr. Part No.E3641A
TWD35,544.00
Each
units
0 → 60V Programmable DC Power Supply - 500 mA, 800mA 1 Digital 28W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 806-7512
Mfr. Part No.EA-PS 9200-70 3U
TWD154,702.00
Each
units
0 → 200V Programmable DC Power Supply - 70A 1 Digital 5kW 340 → 460V ac 1 IEC 320 USB 0°C +50°C Digital
RS Stock No. 803-0185
Mfr. Part No.EA-PS 9500-20 2U
TWD128,411.00
Each
units
0 → 500V Laboratory Power Supply - 20A 1 Analogue, Digital 0 → 3000W 180 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C Analogue, Digital
RS Stock No. 690-9663
Mfr. Part No.N6742B
TWD39,823.00
Each
units
8V DC Power Module - 12.5A 1 Digital 100W 100 → 240V ac 2 - - 0°C +55°C Digital
RS Stock No. 805-2456
Mfr. Part No.EA-PS 5040-40 A
TWD33,065.00
Each
units
0 → 40V Laboratory Power Supply - 40A 1 Analogue, Digital 640W 90 → 264V ac 1 IEC 320 Binding Post Terminal 0°C +50°C Analogue, Digital
RS Stock No. 806-7509
Mfr. Part No.EA-PS 9040-170 3U
TWD146,085.00
Each
units
0 → 40V Laboratory Power Supply - 170A 1 Digital 3.3kW 340 → 460V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C Digital
RS Stock No. 878-2084
Mfr. Part No.BK9110
TWD12,424.00
Each
units
60V Multi Range DC Power Supply - 5A 1 Digital 100W 110 V ac, 220V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 806-7442
Mfr. Part No.EA-PSI 9200-70 3U
TWD183,117.00
Each
units
0 → 200V Programmable DC Power Supply - 70A 1 Digital 5kW 340 → 460V ac 1 IEC 320 Screw Terminal 0°C +50°C Digital
RS Stock No. 117-6780
Mfr. Part No.PMX18-2A
TWD16,911.00
Each
units
0 → 18V Compact DC Power Supply - 2A 1 Digital 36W 100V ac 1 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 138-6097
Mfr. Part No.EA-PS 9080-60 T
TWD66,089.00
Each
units
0 → 80V Programmable DC Power Supply - 60A 1 Digital 1.5kW 90 → 264V ac 1 IEC Type Plug USB 0°C +50°C Digital
RS Stock No. 806-7430
Mfr. Part No.EA-PSI 9040-170 3U
TWD174,501.00
Each
units
0 → 40V Programmable DC Power Supply - 170A 1 Digital 3.3kW 340 → 460V ac 1 IEC 320 Screw Terminal 0°C +50°C Digital
RS Stock No. 878-2066
Mfr. Part No.BK9202
TWD35,469.00
Each
units
60V Programmable DC Power Supply - 15A 1 Digital 360W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 878-2062
Mfr. Part No.BK9201
TWD27,654.00
Each
units
60V Programmable DC Power Supply - 10A 1 Digital 200W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 817-2194
Mfr. Part No.BK1550
TWD6,813.00
Each
units
36V Switching Power Supply - 3A 1 Digital 108W 230V ac 1 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 690-9669
Mfr. Part No.N6741B
TWD46,550.00
Each
units
5V DC Power Module - 20A 1 Digital 100W 100 → 240V ac 2 - - 0°C +55°C Digital