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. 206-4946
Mfr. Part No.NGP824COMA
TWD168,128.00
Each
units
250V - - 40A 4 Digital 800W - - - - - - -
RS Stock No. 187-3437
Mfr. Part No.E36232A
TWD58,158.00
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. 768-3435
Mfr. Part No.2230-30-1
BrandKeithley
TWD45,049.00
Each
units
0 → 30 V, 0 → 6V Programmable DC Power Supply - 1A 3 Digital 120W 120 V ac, 240V ac 1 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 707-2863
Mfr. Part No.PLH250
BrandAim-TTi
TWD17,659.00
Each
units
0 → 250V Adjustable Power Supply - 0 → 375mA 1 Digital 94W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal +5°C +40°C Digital
New
RS Stock No. 210-0290
Mfr. Part No.B2962B
TWD403,548.00
Each
units
210V - - 3.03A 1 Digital 31.8W - - - - - - -
RS Stock No. 711-6717
Mfr. Part No.EA-PS 8240-170 3U
TWD334,733.00
Each
units
0 → 240V - - 170A 1 Digital 15kW 340 → 460 V ac, 588 → 796 V ac 3 Wire Clamp Binding Post Terminal 0°C +50°C -
RS Stock No. 665-4906
Mfr. Part No.EL302RT
BrandAim-TTi
TWD16,803.00
Each
units
0 → 30V Laboratory Power Supply - 2A 3 Digital 130W 115 V ac, 230V ac 4 IEC 320 Binding Post Terminal +5°C +40°C Digital
RS Stock No. 671-8732
Mfr. Part No.N5752A
TWD103,612.00
Each
units
0 → 600V Programmable DC Power Supply - 1.3A 1 Digital 780W 85 → 265V ac 2 IEC 320 Screw Terminal 0°C +55°C Digital
RS Stock No. 121-7584
Mfr. Part No.PVS60085MR
TWD160,313.00
Each
units
600V Programmable DC Power Supply - 8.5A 1 Digital 3kW 170 V ac, 265V ac 2 3 Pin Plug Screw Terminal 0°C +40°C Digital
New
RS Stock No. 215-0863
Mfr. Part No.BK9140
TWD68,133.00
Each
units
32V Multi Range DC Power Supply BK9140 8A 3 Digital 300W - - - - - - -
RS Stock No. 175-7365
BrandRS PRO
TWD6,847.00
Each
units
0 → 60V Programmable DC Power Supply - 0 → 5A 1 Digital 300W 230V ac 2 IEC 320-C14 USB 0°C +40°C Digital
RS Stock No. 257-6969
Mfr. Part No.KAT10
BrandKert
TWD3,453.00
Each
units
12 V, 13.8V Stabilised Power Supply - 6A 1 Analogue - 230V ac - Schuko Plug Binding Post Terminal 0°C +50°C Analogue
RS Stock No. 195-4332
Mfr. Part No.T3PS33203P
TWD45,472.00
Each
units
0 → 32V Programmable Power Supply - 0 → 3A 3 Programmable Linear Power Supply 0 → 50W 230V ac 1 - Ext I/O, LAN, RS-232, Type A USB 0°C +40°C Analogue, Digital
RS Stock No. 790-4754
Mfr. Part No.PL068-P(G)
BrandAim-TTi
TWD24,236.00
Each
units
0 → 6V Laboratory Power Supply - 0 → 8A 1 Digital 94W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal +5°C +40°C Analogue, Digital
RS Stock No. 175-2542
Mfr. Part No.BK9103
TWD20,841.00
Each
units
42V Multi Range DC Power Supply - 20A 1 Digital 320W 110 V ac, 220V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 885-6634
Mfr. Part No.EA-PS 9200-25 1U
TWD83,563.00
Each
units
0 → 200V Programmable DC Power Supply - 25A 1 Analogue, Digital 1.5kW 100 → 264V ac 1 IEC Type Plug USB 0°C +50°C Analogue, Digital
RS Stock No. 806-7446
Mfr. Part No.EA-PSI 9360-40 3U
TWD183,117.00
Each
units
- Programmable DC Power Supply - 40A - Digital 5kW 360V 1 - Screw Terminal 0°C +50°C Digital
RS Stock No. 806-7452
Mfr. Part No.EA-PSI 9040-340 3U
TWD264,556.00
Each
units
0 → 40V Programmable DC Power Supply - 340A 1 Digital 6.6kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C Digital
RS Stock No. 690-9681
Mfr. Part No.N6751A
TWD49,419.00
Each
units
0 → 50V DC Power Module - 5A 1 Digital 50W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C Digital
RS Stock No. 671-8845
Mfr. Part No.N8761A
TWD251,373.00
Each
units
0 → 300V Programmable DC Power Supply - 17A 1 Digital 5.1kW 342 → 460V ac 2 Wire Clamp Screw Terminal 0°C +55°C Digital