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. 895-2491
Mfr. Part No.MX180T
BrandAim-TTi
HK$9,955.49
Each
units
0 → 60V Triple Output DC Power Supply - 1.5 A, 3 A, 6A 3 Digital 375W 110 → 240V ac 1 IEC 320 Binding Post Terminal +5°C +40°C Digital
RS Stock No. 437-9007
Mfr. Part No.EX4210R
BrandAim-TTi
HK$5,805.40
Each
units
0 → 42V - - 0 → 10A 1 Digital 420W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C -
RS Stock No. 817-2194
Mfr. Part No.BK1550
HK$1,852.31
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. 667-2585
Mfr. Part No.U8002A
HK$5,427.04
Each
units
0 → 30V Adjustable Power Supply - 5A 1 Digital 150W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +55°C Digital
RS Stock No. 671-8704
Mfr. Part No.N5743A
HK$27,194.34
Each
units
0 → 12.5V Programmable DC Power Supply - 60A 1 Digital 750W 85 → 265V ac 2 IEC 320 Screw Terminal 0°C +55°C Digital
RS Stock No. 121-7586
Mfr. Part No.BK9130B
HK$10,901.35
Each
units
30V Programmable DC Power Supply - 0 → 3A 3 Digital 195W 110 V ac, 220V ac 6 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 878-2062
Mfr. Part No.BK9201
HK$7,163.75
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. 493-7934
Mfr. Part No.PS 3150-04B
HK$8,260.11
Each
units
0 → 150V Laboratory Power Supply - 4A 1 Digital 640W 90 → 264V ac 2 IEC 320 Binding Post Terminal 0°C +40°C Digital
RS Stock No. 805-2450
Mfr. Part No.EA-PS 5080-20 A
HK$9,175.20
Each
units
0 → 80V Laboratory Power Supply - 20A 1 Analogue, Digital 640W 90 → 264V ac 1 IEC 320 Binding Post Terminal 0°C +50°C Analogue, 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. 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. 121-7578
Mfr. Part No.BK9803
HK$31,873.48
Each
units
300V AC Power Source - 6A 1 Digital 750VA 110 V ac, 220V ac 3 Screw Terminal Universal Output Plug 0°C +40°C Digital
RS Stock No. 805-2469
Mfr. Part No.EA-PS 5200-10 A
HK$9,175.20
Each
units
0 → 200V Laboratory Power Supply - 10A 1 Analogue, Digital 640W 90 → 264V ac 1 IEC 320 Binding Post Terminal 0°C +50°C Analogue, Digital
RS Stock No. 493-8000
Mfr. Part No.PS 3016-20B
HK$5,315.71
Each
units
0 → 16V Laboratory Power Supply - 20A 1 Digital 320W 115 V ac, 230V ac 2 IEC 320 Binding Post Terminal 0°C +40°C 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. 360-0007
Mfr. Part No.AT5VD
BrandKert
HK$1,556.59
Each
units
0 → 15V - - 5A 1 Digital - 230V ac 1 IEC 320 Binding Post Terminal -10°C +40°C -
RS Stock No. 707-2872
Mfr. Part No.PLH250P
BrandAim-TTi
HK$6,511.74
Each
units
0 → 250V Laboratory Power Supply - 375mA 1 Digital 94W 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. 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