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. 184-3998
Mfr. Part No.EA-PS 3080-20 C
HK$8,348.00
Each
units
0 → 80V dc - 0 → 20A 1 Digital 0 → 640W 90 → 264V ac 1 - USB 0°C +50°C
RS Stock No. 888-2368
Mfr. Part No.B2962A
HK$93,306.67
Each
units
±210V - ±10A 2 Analogue, Digital 31.8W 90 → 264V ac 2 IEC 320-C14 4 mm Safety Socket 0°C +55°C
New
RS Stock No. 201-2851
Mfr. Part No.EA-PSB 9750-20 3U
HK$73,732.32
Each
units
750V - 20A 1 Digital 2.5kW - - - - - -
RS Stock No. 193-8340
Mfr. Part No.NGM202-G
HK$49,864.26
Each
units
0 → 20V NGM200 6A 2 Digital 120W 230V 1 8-Pin Connector 4 mm Safety Socket +5°C +40°C
RS Stock No. 806-7534
Mfr. Part No.EA-PS 9200-140 3U
HK$48,596.19
Each
units
0 → 200V - 140A 1 Digital 10kW 340 → 460V ac 1 Wire Clamp USB 0°C +50°C
RS Stock No. 175-2545
Mfr. Part No.BK9116
HK$18,822.60
Each
units
150V - 30A 1 Digital 1.2kW 115 V ac, 230 V ac 1 IEC 320 Screw Terminal 0°C +40°C
RS Stock No. 813-3622
Mfr. Part No.2260B-80-13
BrandKeithley
HK$13,522.80
Each
units
0 → 80V - 13.5A 1 Digital 360W 100 → 240V ac 1 IEC 320 Plug-In Terminal Block - -
RS Stock No. 197-5257
Mfr. Part No.NGP822
HK$25,521.08
Each
units
0 → 64V - 10A 2 Digital 400W - - - - - -
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. 671-8766
Mfr. Part No.N5768A
HK$27,099.36
Each
units
0 → 80V - 19A 1 Digital 1.5kW 85 → 265V ac 2 Wire Clamp Screw Terminal 0°C +55°C
RS Stock No. 805-2440
Mfr. Part No.EA-PS 5040-20 A
HK$5,778.21
Each
units
0 → 40V - 20A 1 Analogue, Digital 320W 90 → 264V ac 1 IEC 320 Binding Post Terminal 0°C +50°C
RS Stock No. 138-6100
Mfr. Part No.EA-PSI 9040-20 T
HK$13,702.84
Each
units
0 → 40V - 20A 1 Digital 320W 90 → 264V ac 1 IEC Type Plug USB 0°C +50°C
RS Stock No. 671-8713
Mfr. Part No.N5744A
HK$26,436.89
Each
units
0 → 20V - 38A 1 Digital 760W 85 → 265V ac 2 IEC 320 Screw Terminal 0°C +55°C
RS Stock No. 102-5993
Mfr. Part No.EA-PSI 9040-40 DT
HK$17,068.39
Each
units
0 → 40V - 40A 1 Digital 640W 90 → 264V ac 1 IEC 320 Screw Terminal 0°C +50°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. 805-2447
Mfr. Part No.EA-PS 5200-02 A
HK$5,319.67
Each
units
0 → 200V - 2A 1 Analogue, Digital 160W 90 → 264V ac 1 IEC 320 Binding Post Terminal 0°C +50°C
RS Stock No. 806-7452
Mfr. Part No.EA-PSI 9040-340 3U
HK$64,618.66
Each
units
0 → 40V - 340A 1 Digital 6.6kW 340 → 460V ac 1 Wire Clamp Screw Terminal 0°C +50°C
RS Stock No. 138-6102
Mfr. Part No.EA-PSI 9200-04 T
HK$10,787.75
Each
units
0 → 200V - 4A 1 Digital 320W 90 → 264V ac 1 IEC Type Plug USB 0°C +50°C
RS Stock No. 121-7540
Mfr. Part No.BK1901B
HK$5,666.15
Each
units
32V - 30A 2 Digital 960W 110 V ac, 230 V ac 2 IEC 320 Binding Post Terminal 0°C +40°C
RS Stock No. 671-8722
Mfr. Part No.N5748A
HK$22,825.56
Each
units
0 → 80V - 9.5A 1 Digital 760W 85 → 265V ac 2 IEC 320 Screw Terminal 0°C +55°C
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