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. 667-7390
Mfr. Part No.E3649A
SGD2,296.91
Each
units
0 → 35V Programmable DC Power Supply - 1.4 A, 800mA 2 Digital 49W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 501-178
Mfr. Part No.E3633A
SGD2,484.55
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 10 A, 20A 1 Digital 160W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 667-7397
Mfr. Part No.E3648A
SGD2,231.25
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. 690-9717
Mfr. Part No.N6775A
SGD2,459.10
Each
units
0 → 60V DC Power Module - 5A 1 Digital 300W 100 → 240V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 690-9647
Mfr. Part No.N6731B
SGD916.65
Each
units
0 → 5V DC Power Module - 10A 1 Digital 50W 100 → 240V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 667-2581
Mfr. Part No.U8001A
SGD689.85
Each
units
0 → 30V Adjustable Power Supply - 3A 1 Digital 90W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 667-7381
Mfr. Part No.E3645A
SGD1,741.95
Each
units
0 → 60V Programmable DC Power Supply - 1.1 A, 2.2A 1 Digital 80W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 888-2368
Mfr. Part No.B2962A
SGD16,346.48
Each
units
±210V Low Noise Power Source - ±10A 2 Analogue, Digital 31.8W 90 → 264V ac 2 IEC 320-C14 4 mm Safety Socket - 0°C +55°C
RS Stock No. 667-7340
Mfr. Part No.E3620A
SGD1,067.85
Each
units
0 → 25V Dual Range Power Supply - 1A 2 Digital 25W 115V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 690-9650
Mfr. Part No.N6733B
SGD916.65
Each
units
0 → 20V DC Power Module - 2.5A 1 Digital 50W 100 → 240V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 667-7375
Mfr. Part No.E3642A
SGD1,487.85
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 2.5 A, 5A 1 Digital 40W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 667-7344
Mfr. Part No.E3630A
SGD1,067.85
Each
units
0 → 20 V, 0 → 6V Triple Output DC Power Supply - 2.5 A, 500mA 3 Digital 15W 115V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 751-1664
Mfr. Part No.N6777A
SGD2,459.10
Each
units
0 → 150V DC Power Module - 2A 1 Digital 300W 100 → 240V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 667-2585
Mfr. Part No.U8002A
SGD865.20
Each
units
0 → 30V Adjustable Power Supply - 5A 1 Digital 150W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 671-8776
Mfr. Part No.N5772A
SGD5,538.28
Each
units
0 → 600V Programmable DC Power Supply - 2.6A 1 Digital 1.6kW 85 → 265V ac 2 Wire Clamp Screw Terminal - 0°C +55°C
RS Stock No. 667-7384
Mfr. Part No.E3646A
SGD1,863.75
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 1.5 A, 3A 2 Digital 24W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 667-7388
Mfr. Part No.E3647A
SGD1,863.75
Each
units
0 → 60V Programmable DC Power Supply - 500 mA, 800mA 2 Digital 28W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 667-7372
Mfr. Part No.E3644A
SGD1,741.95
Each
units
0 → 20 V, 0 → 8V Programmable DC Power Supply - 4 A, 8A 1 Digital 80W 110 V ac, 230V ac 2 IEC 320 Binding Post Terminal - 0°C +55°C
RS Stock No. 671-8722
Mfr. Part No.N5748A
SGD4,336.50
Each
units
0 → 80V Programmable DC Power Supply - 9.5A 1 Digital 760W 85 → 265V ac 2 IEC 320 Screw Terminal - 0°C +55°C
RS Stock No. 671-8738
Mfr. Part No.N5751A
SGD4,336.50
Each
units
0 → 300V Programmable DC Power Supply - 2.5A 1 Digital 750W 85 → 265V ac 2 IEC 320 Screw Terminal - 0°C +55°C