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.

Types Of Power Supplies

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 a 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 Bench Power Supply Type 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. 121-7587
Mfr. Part No.BK9131B
PHP121,997.47
Each
units
30V Programmable DC Power Supply - 6A 3 Digital 375W 110 V ac, 220V ac 6 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 690-9666
Mfr. Part No.N6736B
PHP40,993.58
Each
units
0 → 100V DC Power Module - 500mA 1 Digital 50W 100 → 240V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 174-2915
Mfr. Part No.HMP2020
PHP104,617.12
Each
units
0 → 30V Programmable DC Power Supply - 5 A, 10A 2 Digital 188W 230V ac 1 IEC 320-C14 4 mm Safety Socket - +5°C +40°C
RS Stock No. 144-8199
Mfr. Part No.HMC8042-G
PHP118,747.23
Each
units
0 → 30V Programmable DC Power Supply - 5A 2 Digital 50W 100 → 240V ac 3 Wago Male Connector 4 mm Safety Socket - 0°C +40°C
RS Stock No. 117-6782
Mfr. Part No.PMX35-1A
PHP31,527.49
Each
units
0 → 35V Compact DC Power Supply - 1A 1 Digital 35W 100V ac 1 IEC 320 Binding Post Terminal - 0°C +40°C
RS Stock No. 102-6005
Mfr. Part No.EA-PSI 9750-06 DT
PHP185,565.30
Each
units
0 → 750V Programmable DC Power Supply - 6A 1 Digital 0 → 1500W 90 → 264V ac 1 IEC 320 Screw Terminal - 0°C +50°C
RS Stock No. 136-8574
Mfr. Part No.E36311A
PHP84,199.19
Each
units
0 → 6V Programmable DC Power Supply - 1 A, 5A 3 Digital 80W 230V ac 3 2 Wire, 4 Wire USB - 0°C +40°C
RS Stock No. 182-9950
Mfr. Part No.NGE103B
PHP77,013.62
Each
units
0 → 32V Adjustable Power Supply - 0 → 3A 3 Digital 100W 115/230V 3 IEC 320-C14 4 mm Safety Socket - 0°C +40°C
New
RS Stock No. 219-2287
Mfr. Part No.NGA141
PHP58,432.83
Each
units
0 → 100V - R&SNGA141 2A 1 Linear 40W - - - - - - -
RS Stock No. 690-9669
Mfr. Part No.N6741B
PHP77,731.71
Each
units
5V DC Power Module - 20A 1 Digital 100W 100 → 240V ac 2 - - - 0°C +55°C