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 Calibrated Minimum Temperature Maximum Temperature
RS Stock No. 756-8821
Mfr. Part No.EA-PS 2042-20B
MYR1,734.77
Each
units
0 → 42V - 20A 1 Digital 320W 100 → 240V ac 2 IEC 320 4 mm Safety Socket - 0°C +50°C
RS Stock No. 124-0235
BrandRS PRO
MYR9,639.94
Each
units
0 → 30V - 108A 1 Digital 1.1kW 85 → 265V ac 1 IEC 320 Plug-In Terminal Block - 0°C +50°C
RS Stock No. 667-7362
Mfr. Part No.E3640A
MYR4,335.55
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. 705-5010
Mfr. Part No.PWS4205
BrandTektronix
MYR4,922.49
Each
units
0 → 20V - 5A 1 Digital 100W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 705-5016
Mfr. Part No.PWS2721
BrandTektronix
MYR2,316.47
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. 805-2478
Mfr. Part No.EA-PSI 5040-20 A
MYR4,457.83
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. 303-0363
Mfr. Part No.K-AT5V
BrandKert
MYR420.83
Each
units
24V - 4 A, 5 A 1 Analogue - 230V ac - Schuko Plug Binding Post Terminal - -10°C +40°C
RS Stock No. 758-1127
Mfr. Part No.2200-20-5
BrandKeithley
MYR5,147.69
Each
units
0 → 20V - 5A 1 Digital 100W 110 V ac, 220 V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 155-383
Mfr. Part No.PL155
BrandAim-TTi
MYR2,021.10
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. 825-2690
Mfr. Part No.2280S-60-3
BrandKeithley
MYR10,900.23
Each
units
0 → 60V - 3.2A 1 Digital 192W 100 V ac, 120 V ac, 220 V ac, 230 V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 885-3732
Mfr. Part No.N6752A + AT90DH
MYR9,203.04
1 Kit
Kit(s)
0 → 25 V, 0 → 50 V - 10A 1 - 100W - 1 Wire Clamp Screw Terminal - 0°C +40°C
RS Stock No. 737-7199
Mfr. Part No.CPX400SA
BrandAim-TTi
MYR4,949.63
Each
units
0 → 60V - 0 → 20A 1 Digital 420W 110 → 240V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 813-3628
Mfr. Part No.2260B-30-72
BrandKeithley
MYR10,866.38
Each
units
0 → 30V - 72A 1 Digital 720W 80 → 265V ac 1 IEC 320 Plug-In Terminal Block - - -
RS Stock No. 878-2084
Mfr. Part No.BK9110
MYR1,736.86
Each
units
60V - 5A 1 Digital 100W 110 V ac, 220 V ac 2 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 123-3579
BrandRS PRO
MYR1,874.18
Each
units
0 → 60V - 6A 1 Digital 360W 115 V ac, 230 V ac 2 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 852-5232
Mfr. Part No.MX100T
BrandAim-TTi
MYR5,144.55
Each
units
0 → 16 V, 0 → 35 V, 0 → 70 V - 0 → 1.5 A, 0 → 3 A, 0 → 6 A 3 Digital 315W 110 → 240V ac 1 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 895-2401
Mfr. Part No.2260B-250-13
BrandKeithley
MYR18,885.57
Each
units
0 → 250V - 13.5A 1 Digital 1.1kW 80 → 265V ac 1 IEC 320 Screw Terminal - - -
RS Stock No. 813-3622
Mfr. Part No.2260B-80-13
BrandKeithley
MYR8,192.10
Each
units
0 → 80V - 13.5A 1 Digital 360W 100 → 240V ac 1 IEC 320 Plug-In Terminal Block - - -
RS Stock No. 665-4892
Mfr. Part No.EL303R
BrandAim-TTi
MYR1,784.23
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. 155-399
Mfr. Part No.PL303
BrandAim-TTi
MYR2,046.68
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