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.

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 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 Output Current Number of Outputs Type Power Rating Supply Voltage Number of Displays Input Connector Output Connector Minimum Temperature Maximum Temperature
RS Stock No. 493-7984
Mfr. Part No.PS 3032-10B
HK$5,642.47
Each
units
0 → 30V 10A 1 Digital 320W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 878-2084
Mfr. Part No.BK9110
HK$2,624.95
Each
units
0 → 60V 5A 1 Digital 100W 99 → 121 V ac, 198 → 242 V ac 2 IEC 320 Binding Post Terminal - -
RS Stock No. 707-2857
Mfr. Part No.CPX400DP
BrandAim-TTi
HK$11,383.68
Each
units
0 → 60V 0 → 20A 2 Digital 840W 110 → 240V ac 4 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 731-2852
Mfr. Part No.QPX1200SP
BrandAim-TTi
HK$14,566.50
Each
units
0 → 60V 0 → 50A 1 Digital 1.2kW 110 → 240V ac 1 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 507-7106
Mfr. Part No.EX2020
BrandAim-TTi
HK$5,580.90
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. 257-6953
Mfr. Part No.KAT5
BrandKert
HK$530.33
Each
units
12 V, 13.8 V 4 A, 5 A 1 Analogue - 230V ac - Schuko Plug Binding Post Terminal -10°C +40°C
RS Stock No. 731-2842
Mfr. Part No.CPX400D
BrandAim-TTi
HK$8,888.33
Each
units
0 → 60V 0 → 20A 2 Digital 420W 110 → 240V ac 4 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 705-5026
Mfr. Part No.PWS4602
BrandTektronix
HK$9,188.24
Each
units
0 → 60V 2.5A 1 Digital 150W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 388-2726
Mfr. Part No.EX752M
BrandAim-TTi
HK$5,525.17
Each
units
0 → 75V 2 A, 4 A 2 Digital 300W 115 V ac, 230 V ac 4 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 501-219
Mfr. Part No.E3631A
HK$15,602.46
Each
units
-25 → 25V 1 A, 5 A 3 Digital 30W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 878-2088
Mfr. Part No.BK9111
HK$3,644.73
Each
units
0 → 60V 8A 1 Digital 180W 99 → 121 V ac, 198 → 242 V ac 2 IEC 320 Binding Post Terminal - -
RS Stock No. 671-8716
Mfr. Part No.N5745A
HK$22,378.00
Each
units
0 → 30V 25A 1 Digital 750W 85 → 265V ac 2 IEC 320 Screw Terminal 0°C +55°C
RS Stock No. 705-5016
Mfr. Part No.PWS2721
BrandTektronix
HK$3,675.30
Each
units
0 → 72V 1.5A 1 Digital - 110 V ac, 220 V ac 2 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 731-2855
Mfr. Part No.QPX600D
BrandAim-TTi
HK$17,222.40
Each
units
0 → 80V 0 → 50A 2 Digital 600W 110 → 240V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 537-5365
BrandRS PRO
HK$1,646.11
Each
units
13.5V 4A 1 Analogue - 230V ac - - Screw Terminal - -
RS Stock No. 716-7371
Mfr. Part No.EA-PS 2042-10B
HK$2,526.80
Each
units
0 → 42V 10A 1 Digital 160W 90 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C
RS Stock No. 456-7888
Mfr. Part No.EA-3048B
HK$3,193.03
Each
units
0 → 30V 5A 2 Digital 150VA 230V ac 2 IEC 320 4 mm Safety Socket 0°C +40°C
RS Stock No. 716-7377
Mfr. Part No.EA-PS 2042-06B
HK$2,086.68
Each
units
0 → 42V 6A 1 Digital 100W 90 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C
RS Stock No. 155-399
Mfr. Part No.PL303
BrandAim-TTi
HK$3,439.80
Each
units
0 → 30V 0 → 3A 1 Digital 90W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 121-7585
Mfr. Part No.BK9129B
HK$6,551.22
Each
units
0 → 30V 3A 3 - 195W 110 → 220V ac 6 IEC 320 Binding Post Terminal 0°C +40°C