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. 121-7529
Mfr. Part No.BK1693
HK$4,983.48
Each
units
15V Switching Power Supply - 60A 1 Digital 900W 100 V ac, 240V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 813-3628
Mfr. Part No.2260B-30-72
BrandKeithley
HK$20,573.11
Each
units
0 → 30V Programmable DC Power Supply - 72A 1 Digital 720W 80 → 265V ac 1 IEC 320 Plug-In Terminal Block - - Digital
RS Stock No. 257-6969
Mfr. Part No.KAT10
BrandKert
HK$894.42
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. 705-5022
Mfr. Part No.PWS4323
BrandTektronix
HK$9,616.45
Each
units
0 → 30V Programmable DC Power Supply - 3A 1 Digital 96W 110 V ac, 220V ac 1 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 205-1404
Mfr. Part No.TSX3510
BrandAim-TTi
HK$6,933.98
Each
units
0 → 35V - - 0 → 10A 1 Digital 350W 110 → 240V 2 IEC 320 Binding Post Terminal +5°C +40°C -
RS Stock No. 665-4874
Mfr. Part No.EL301R
BrandAim-TTi
HK$2,128.25
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 Digital
RS Stock No. 753-1466
Mfr. Part No.QL564TP SII
BrandAim-TTi
HK$12,139.75
Each
units
0 → 15 V, 0 → 35V Precision DC Power Supply - 2 A, 3 A, 4A 3 Digital 105W 115 V ac, 230V ac 4 IEC 320 Binding Post Terminal +5°C +40°C Digital
RS Stock No. 803-0103
Mfr. Part No.EA-PSI 9080-60 2U
HK$22,747.49
Each
units
0 → 80V Programmable DC Power Supply - 60A 1 Analogue, Digital 0 → 1500W 90 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°C Analogue, Digital
RS Stock No. 447-7577
Mfr. Part No.KAT 10VD
BrandKert
HK$1,327.59
Each
units
0 → 15V Stabilised Power Supply - 10A 1 Digital - 230V ac 1 Schuko Plug Binding Post Terminal -10°C +40°C Digital
RS Stock No. 803-0191
Mfr. Part No.EA-PS 9040-120 2U
HK$33,264.70
Each
units
0 → 40V Laboratory Power Supply - 120A 1 Analogue, Digital 0 → 3000W 180 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C Analogue, Digital
RS Stock No. 878-2081
Mfr. Part No.BK1747
HK$9,447.84
Each
units
60V Dual Range Power Supply - 10A 1 Digital 350W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 806-7506
Mfr. Part No.EA-PSI 91500-30 3U
HK$126,617.78
Each
units
0 → 1500V Programmable DC Power Supply - 30A 1 Digital 15kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C Digital
RS Stock No. 102-5992
Mfr. Part No.EA-PSI 9200-04 DT
HK$17,608.28
Each
units
0 → 200V Programmable DC Power Supply - 4A 1 Digital 320W 90 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°C Digital
RS Stock No. 803-0166
Mfr. Part No.EA-PS 9080-60 2U
HK$20,318.05
Each
units
0 → 80V Laboratory Power Supply - 60A 1 Analogue, Digital 1.5kW 90 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C Analogue, Digital
RS Stock No. 121-7527
Mfr. Part No.BK1685B
HK$3,426.14
Each
units
60V Switching Power Supply - 5A 1 Digital 300W 100 V ac, 240V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 737-7180
Mfr. Part No.CPX400SP
BrandAim-TTi
HK$9,209.46
Each
units
0 → 60V Programmable DC Power Supply - 0 → 20A 1 Digital 420W 110 → 240V ac 2 IEC 320 Binding Post Terminal +5°C +40°C Digital
RS Stock No. 671-8750
Mfr. Part No.N5765A
HK$31,663.34
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 Digital
RS Stock No. 665-4892
Mfr. Part No.EL303R
BrandAim-TTi
HK$3,459.41
Each
units
0 → 30V Laboratory Power Supply - 0 → 3A 1 Digital 90W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal +5°C +40°C Digital
RS Stock No. 130-1821
Mfr. Part No.EA-PS-1501T
HK$806.49
Each
units
2.5 → 15V Universal Power Supply - 1A 1 Analogue 15W 100 → 253V ac - IEC 320 4 mm Safety Socket 0°C +45°C Analogue
RS Stock No. 753-1441
Mfr. Part No.QL355TP SII
BrandAim-TTi
HK$12,139.75
Each
units
0 → 35V Precision DC Power Supply - 3 A, 5A 3 Digital 105W 115 V ac, 230V ac 4 IEC 320 Binding Post Terminal +5°C +40°C Digital