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. 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. 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. 667-2581
Mfr. Part No.U8001A
HK$3,748.48
Each
units
0 → 30V 3A 1 Digital 90W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 667-7397
Mfr. Part No.E3648A
HK$11,282.66
Each
units
0 → 20 V, 0 → 8 V 2.5 A, 5 A 2 Digital 40W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 671-8845
Mfr. Part No.N8761A
HK$58,324.08
Each
units
0 → 300V 17A 1 Digital 5.1kW 342 → 460V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 667-7384
Mfr. Part No.E3646A
HK$9,378.00
Each
units
0 → 20 V, 0 → 8 V 1.5 A, 3 A 2 Digital 24W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 501-178
Mfr. Part No.E3633A
HK$12,518.00
Each
units
0 → 20 V, 0 → 8 V 10 A, 20 A 1 Digital 160W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 690-9357
Mfr. Part No.6032A
HK$62,774.55
Each
units
0 → 60V 50A 1 Digital 1kW 100V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 667-2585
Mfr. Part No.U8002A
HK$4,547.36
Each
units
0 → 30V 5A 1 Digital 150W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 671-8704
Mfr. Part No.N5743A
HK$22,378.00
Each
units
0 → 12.5V 60A 1 Digital 750W 85 → 265V ac 2 IEC 320 Screw Terminal 0°C +55°C
RS Stock No. 671-8750
Mfr. Part No.N5765A
HK$30,272.83
Each
units
0 → 30V 50A 1 Digital 1.5kW 85 → 265V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 671-8760
Mfr. Part No.N5769A
HK$26,568.00
Each
units
0 → 100V 15A 1 Digital 1.5kW 85 → 265V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 751-1661
Mfr. Part No.N6756A
HK$26,238.00
Each
units
0 → 60V 17A 1 Digital 500W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 501-229
Mfr. Part No.E3634A
HK$12,518.00
Each
units
0 → 50V 4 A, 7 A 1 Digital 175W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +55°C
RS Stock No. 175-1804
Mfr. Part No.E36105B
HK$8,117.22
Each
units
0 → 60V 600mA 1 Digital 36W 100 V ac, 115 V ac, 230 V ac 1 IEC 320-C14 - 0°C +40°C
RS Stock No. 751-1664
Mfr. Part No.N6777A
HK$12,818.00
Each
units
0 → 150V 2A 1 Digital 300W 100 → 240V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 175-1805
Mfr. Part No.E36106B
HK$8,117.22
Each
units
0 → 100V 400mA 1 Digital 40W 100 V ac, 115 V ac, 230 V ac 1 - - 0°C +40°C
RS Stock No. 885-3717
Mfr. Part No.E3632A + AT90DH
HK$10,134.60
1 Kit
Kit(s)
5 V, 15 V, 32 V 4 A, 7 A 1 Digital 120W 100 V ac, 115 V ac, 230 V ac 2 - Binding Post Terminal, Screw Terminal 0°C 40°C
RS Stock No. 671-8811
Mfr. Part No.N8742A
HK$44,072.38
Each
units
0 → 600V 5.5A 1 Digital 3.3kW 170 → 260V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 187-3438
Mfr. Part No.E36233A
HK$23,826.18
Each
units
0 → 30V dc 0 → 20A 2 Digital 400W 100 → 240V ac 2 - - 0°C +40°C