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. 665-4886
Mfr. Part No.EL302R
BrandAim-TTi
PHP20,645.73
Each
units
0 → 30V Laboratory Power Supply - 0 → 2A 1 Digital 60W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 121-7526
Mfr. Part No.BK1673
PHP62,451.89
Each
units
32V Triple Output DC Power Supply - 6A 3 Digital 399W 115 V ac, 230V ac 4 IEC 320 4 mm Safety Socket - +10°C +40°C
RS Stock No. 671-8763
Mfr. Part No.N5767A
PHP231,368.87
Each
units
0 → 60V Programmable DC Power Supply - 25A 1 Digital 1.5kW 85 → 265V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 507-7106
Mfr. Part No.EX2020
BrandAim-TTi
PHP48,355.97
Each
units
0 → 20V - - 0 → 20A 1 Digital 400W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 123-6468
BrandRS PRO
PHP28,826.86
Each
units
0 → 32V Programmable DC Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 705-5013
Mfr. Part No.PWS2326
BrandTektronix
PHP42,790.23
Each
units
0 → 30V Adjustable Power Supply - 6A 1 Digital - 110 V ac, 220V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 667-7340
Mfr. Part No.E3620A
PHP49,814.21
Each
units
0 → 25V Dual Range Power Supply - 1A 2 Digital 25W 115V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 665-4874
Mfr. Part No.EL301R
BrandAim-TTi
PHP17,740.59
Each
units
0 → 30V Laboratory Power Supply - 0 → 1A 1 Digital 30W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 123-3570
BrandRS PRO
PHP17,425.70
Each
units
0 → 40V Switching Power Supply - 5A 1 Digital 200W 115 V ac, 230V ac 1 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 888-2368
Mfr. Part No.B2962A
PHP800,674.46
Each
units
±210V Low Noise Power Source - ±10A 2 Analogue, Digital 31.8W 90 → 264V ac 2 IEC 320-C14 4 mm Safety Socket - 0°C +55°C
RS Stock No. 705-5004
Mfr. Part No.PWS2323
BrandTektronix
PHP35,435.72
Each
units
0 → 30V Adjustable Power Supply - 3A 1 Digital - 110 V ac, 220V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 123-3565
BrandRS PRO
PHP19,693.49
Each
units
0 → 30V Laboratory Power Supply - 3A 2 Digital 180W 100 → 230V ac 4 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 123-3558
BrandRS PRO
PHP28,627.31
Each
units
0 → 30V Programmable DC Power Supply - 3A 2 Digital 180W 100 → 230V ac 4 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 878-2069
Mfr. Part No.BK1672
PHP37,261.29
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
RS Stock No. 665-4903
Mfr. Part No.EX354RD
BrandAim-TTi
PHP49,546.25
Each
units
0 → 35V - - 0 → 4A 2 Digital 280W 110 → 240V ac 4 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 123-3563
BrandRS PRO
PHP13,772.57
Each
units
0 → 30V - - 3A 1 Analogue 90W 100 → 240V ac 2 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 123-6467
BrandRS PRO
PHP22,325.15
Each
units
0 → 32V Programmable DC Power Supply - 3.2A 3 Programmable Linear Power Supply 220W 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 817-2226
Mfr. Part No.BK1671A
PHP21,341.25
Each
units
30V Triple Output DC Power Supply - 5A 3 Digital 158W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 667-7362
Mfr. Part No.E3640A
PHP66,949.37
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
RS Stock No. 826-2701
Mfr. Part No.2231A-30-3
BrandKeithley
PHP55,838.90
Each
units
0 → 30V Triple Output DC Power Supply - 3A 3 Analogue, Digital 195W 110 → 230V ac 3 IEC 320 Binding Post Terminal - 0°C +40°C