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. 138-6097
Mfr. Part No.EA-PS 9080-60 T
MYR8,159.17
Each
units
0 → 80V Programmable DC Power Supply - 60A 1 Digital 1.5kW 90 → 264V ac 1 IEC Type Plug USB - 0°C +50°C
RS Stock No. 671-8845
Mfr. Part No.N8761A
MYR35,555.14
Each
units
0 → 300V Programmable DC Power Supply - 17A 1 Digital 5.1kW 342 → 460V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 667-7397
Mfr. Part No.E3648A
MYR7,186.77
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 2 Digital 40W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 507-7106
Mfr. Part No.EX2020
BrandAim-TTi
MYR3,217.70
Each
units
0 → 20V - - 0 → 20A 1 Digital 400W 115 V ac, 230 V ac 2 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 193-8339
Mfr. Part No.NGM202
MYR29,583.12
Each
units
0 → 20V Programmable DC Power Supply NGM200 6A 2 Digital 120W 230V 1 8-Pin Connector 4 mm Safety Socket - +5°C +40°C
New
RS Stock No. 215-0865
Mfr. Part No.BK9141
MYR8,951.33
Each
units
60V Multi Range DC Power Supply BK9141 4A 3 Digital 300W - - - - - - -
RS Stock No. 184-3996
Mfr. Part No.EA-PS 3200-04 C
MYR3,935.84
Each
units
0 → 200V dc Laboratory Power Supply - 0 → 4A 1 Digital 0 → 320W 90 → 264V ac 1 - 4 mm Safety Socket - 0°C +50°C
RS Stock No. 102-6002
Mfr. Part No.EA-PSI 9200-25 DT
MYR11,902.55
Each
units
0 → 200V Programmable DC Power Supply - 25A 1 Digital 0 → 1500W 90 → 264V ac 1 IEC 320 Screw Terminal - 0°C +50°C
RS Stock No. 176-6014
Mfr. Part No.2230G-30-6
BrandKeithley
MYR9,382.03
Each
units
0 → 30V Programmable DC Power Supply - 4 A, 6A 3 Digital 375W 110 V ac, 220V ac 2 3-Pin Socket (Power Cord) USB - 0°C +40°C
RS Stock No. 193-8341
Mfr. Part No.NGM-COM2A
MYR33,938.69
Each
units
0 → 32V Programmable DC Power Supply NGM-COM2A 3A 3 Digital 100W 115 / 230V 3 8-Pin Connector 4 mm Safety Socket - +5°C +40°C
RS Stock No. 144-5480
Mfr. Part No.TSX1820P Lxi
BrandAim-TTi
MYR6,544.71
Each
units
0 → 18V Programmable DC Power Supply - 20A 1 Digital 360W 110 → 240V ac 3 IEC 320 Binding Post Terminal - +5°C +40°C
RS Stock No. 184-0728
Mfr. Part No.N6792A
MYR11,979.85
Each
units
- DC Electronic Load Module - - 1 DC Electronic Load Module 200W 0 → 60V - - - - 0°C +55°C
RS Stock No. 123-3569
BrandRS PRO
MYR1,162.07
Each
units
0 → 20V Switching Power Supply - 10A 1 Digital 200W 115 V ac, 230V ac 1 IEC 320 Plug-In Terminal Block - 0°C +40°C
RS Stock No. 690-9669
Mfr. Part No.N6741B
MYR5,428.32
Each
units
5V DC Power Module - 20A 1 Digital 100W 100 → 240V ac 2 - - - 0°C +55°C