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. 800-3189
Mfr. Part No.2230G-30-1
BrandKeithley
HK$12,496.26
Each
units
0 → 30 V, 0 → 6 V - 1.5 A, 5 A 3 Digital 450VA 240V ac 1 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 667-7340
Mfr. Part No.E3620A
HK$5,808.99
Each
units
0 → 25V - 1A 2 Digital 25W 115V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 121-7576
Mfr. Part No.XLN8018-GL
HK$23,932.48
Each
units
80V - 18A 1 Digital 1.4kW 100 V ac, 240 V ac 2 IEC 320 Plug-In Terminal Block 0°C +40°C
RS Stock No. 123-3558
BrandRS PRO
HK$4,660.79
Each
units
0 → 30V - 3A 2 Digital 180W 100 → 230V ac 4 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 138-6108
Mfr. Part No.EA-PSI 9080-40 T
HK$16,142.37
Each
units
0 → 80V - 40A 1 Digital 1kW 90 → 264V ac 1 IEC Type Plug USB 0°C +50°C
RS Stock No. 667-7362
Mfr. Part No.E3640A
HK$8,083.25
Each
units
0 → 20 V, 0 → 8 V - 1.5 A, 3 A 1 Digital 30W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 711-6764
Mfr. Part No.EA-PSI 8160-170 3U
HK$61,998.19
Each
units
0 → 160V - 170A 1 Digital 10kW 340 → 460V ac 1 Wire Clamp Binding Post Terminal 0°C +50°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. 803-0141
Mfr. Part No.EA-PS 9360-10 2U
HK$17,575.47
Each
units
0 → 360V - 10A 1 Analogue, Digital 1kW 90 → 264V ac 1 IEC 320 4 mm Safety Socket 0°C +50°C
RS Stock No. 184-9489
Mfr. Part No.NGL202
HK$28,465.82
Each
units
0 → 20V - 6A 2 Digital 120W 250V dc 1 - - +5°C +40°C
RS Stock No. 806-7480
Mfr. Part No.EA-PSI 9200-210 3U
HK$98,822.13
Each
units
0 → 200V - 210A 1 Digital 15kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C
RS Stock No. 665-4880
Mfr. Part No.EL561R
BrandAim-TTi
HK$2,265.12
Each
units
0 → 56V - 0 → 1.1A 1 Digital 60W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 665-4899
Mfr. Part No.EL155R
BrandAim-TTi
HK$2,358.13
Each
units
0 → 15V - 0 → 5A 1 Digital 75W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal +5°C +40°C
RS Stock No. 671-8772
Mfr. Part No.N5771A
HK$31,298.98
Each
units
0 → 300V - 5A 1 Digital 1.5kW 85 → 265V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 184-3991
Mfr. Part No.EA-PS 3080-05 C
HK$5,549.80
Each
units
0 → 80V dc - 0 → 5A 1 Digital 0 → 160W 90 → 264V ac 1 - USB 0°C +50°C
RS Stock No. 184-3997
Mfr. Part No.EA-PS 3040-40 C
HK$8,348.00
Each
units
0 → 40V dc - 0 → 40A 1 Digital 0 → 640W 90 → 264V ac 1 - USB 0°C +50°C
RS Stock No. 803-0129
Mfr. Part No.EA-PSI 9360-30 2U
HK$36,073.25
Each
units
0 → 360V - 30A 1 Analogue, Digital 0 → 3000W 180 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°C
RS Stock No. 803-0119
Mfr. Part No.EA-PSI 9500-10 2U
HK$21,448.13
Each
units
0 → 500V - 10A 1 Analogue, Digital 0 → 1500W 90 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°C
RS Stock No. 760-0304
Mfr. Part No.6221
BrandKeithley
HK$72,872.80
Each
units
105V - 4 pA → 210 mA 4 Digital 11W 100 → 240V ac - IEC 320 DB9 0°C +50°C
RS Stock No. 690-9672
Mfr. Part No.N6743B
HK$9,289.28
Each
units
0 → 20V - 5A 1 Digital 100W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C