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 Model Number Output Current Number of Outputs Type Power Rating Supply Voltage Number of Displays Input Connector Output Connector Minimum Temperature Maximum Temperature
RS Stock No. 705-5022
Mfr. Part No.PWS4323
BrandTektronix
HK$8,537.70
Each
units
0 → 30V - 3A 1 Digital 96W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 121-7586
Mfr. Part No.BK9130B
HK$9,294.11
Each
units
30V - 0 → 3A 3 Digital 195W 110 V ac, 220 V ac 6 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 878-2081
Mfr. Part No.BK1747
HK$8,870.35
Each
units
60V - 10A 1 Digital 350W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 803-0191
Mfr. Part No.EA-PS 9040-120 2U
HK$31,364.61
Each
units
0 → 40V - 120A 1 Analogue, Digital 0 → 3000W 180 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C
RS Stock No. 121-7541
Mfr. Part No.BK1902B
HK$5,666.15
Each
units
60V - 15A 2 Digital 900W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 800-3186
Mfr. Part No.2220G-30-1
BrandKeithley
HK$10,459.81
Each
units
0 → 30V - 1.5A 2 Digital 350VA 240V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 707-2872
Mfr. Part No.PLH250P
BrandAim-TTi
HK$5,387.34
Each
units
0 → 250V - 375mA 1 Digital 94W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 805-2450
Mfr. Part No.EA-PS 5080-20 A
HK$8,076.13
Each
units
0 → 80V - 20A 1 Analogue, Digital 640W 90 → 264V ac 1 IEC 320 Binding Post Terminal 0°C +50°C
RS Stock No. 707-2866
Mfr. Part No.PLH120
BrandAim-TTi
HK$4,068.98
Each
units
0 → 120V - 750mA 1 Digital 90W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 690-9704
Mfr. Part No.N6773A
HK$12,818.00
Each
units
0 → 20V - 15A 1 Digital 300W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 183-3476
Mfr. Part No.MX100QP
BrandAim-TTi
HK$15,517.31
Each
units
0 → 70V - 1.5 A, 3 A, 6 A 4 Digital 420W 110 → 240V ac 1 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 187-3436
Mfr. Part No.E36231A
HK$14,839.14
Each
units
0 → 30V dc - 0 → 20A 1 Digital 200W 100 → 240V ac 1 - - 0°C +40°C
RS Stock No. 790-4741
Mfr. Part No.PL068
BrandAim-TTi
HK$3,363.36
Each
units
0 → 6V - 0 → 8A 1 Digital 48W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 187-3719
Mfr. Part No.NGE-COM3a
HK$8,551.83
Each
units
0 → 32V - 3A 3 Digital 100W 115 / 230V 3 - 4 mm Safety Socket 0°C +40°C
RS Stock No. 123-3563
BrandRS PRO
HK$1,833.00
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. 176-6014
Mfr. Part No.2230G-30-6
BrandKeithley
HK$14,439.60
Each
units
0 → 30V - 4 A, 6 A 3 Digital 375W 110 V ac, 220 V ac 2 3-Pin Socket (Power Cord) USB 0°C +40°C
RS Stock No. 806-7540
Mfr. Part No.EA-PS 9750-40 3U
HK$60,301.73
Each
units
0 → 750V - 40A 1 Digital 10kW 340 → 460V ac 1 Wire Clamp 4 mm Safety Socket 0°C +50°C
RS Stock No. 803-0153
Mfr. Part No.EA-PS 9750-04 2U
HK$18,423.29
Each
units
0 → 750V - 4A 1 Analogue, Digital 0 → 1000W 90 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C
RS Stock No. 123-3569
BrandRS PRO
HK$2,643.69
Each
units
0 → 20V - 10A 1 Digital 200W 115 V ac, 230 V ac 1 IEC 320 Plug-In Terminal Block 0°C +40°C
RS Stock No. 806-7519
Mfr. Part No.EA-PS 9500-30 3U
HK$38,833.84
Each
units
0 → 500V - 30A 1 Digital 5kW 340 → 460V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C
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