PLC Power Supplies

A programmable logic controller (PLC) is a specialised computer which has been adapted for the control of industrial processes such as robotic devices and assembly lines. PLC power supplies are components of PLCs that convert relatively high input source power into lower regulated voltages required for the internal circuitry in PLCs. 


How do PLC power supplies work?


The PLC power supply gets input power from an external line voltage, which is usually fed through a control relay and filter external to the PLC. The line voltage is stepped-down, filtered, rectified, regulated, status-monitored and voltage and current protected. Some PLC power supplies are embedded with switches for selecting a particular programming mode or protecting the memory.


The resulting low DC voltage output powers the PLC’s various modules as well as the PLC's integral battery (which is used for memory back up). Should the input line voltage drop or the PLC power supply fail, the memory contents will not change thanks to the memory backup.


What are PLC power supplies used for?


PLC power supplies are essential components required to run a PLC.


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Description Price Manufacturer Series For Use With Line Voltage User Power Output Voltage Output Current Output Power Length Width Depth Minimum Operating Temperature Maximum Operating Temperature Dimensions
RS Stock No. 192-4564
BrandRS PRO
€189.77
Each
units
- - - - - - - - - - - -
RS Stock No. 192-4565
BrandRS PRO
€68.01
Each
units
- - - - - - - - - - - -
RS Stock No. 698-7376
Mfr. Part No.1747-BA
€157.87
Each
units
1747 RSLogix 500 - - - - - - - 0°C +60°C -
RS Stock No. 624-1831
Mfr. Part No.Q6-BAT
BrandMitsubishi
€35.75
Each
units
Q6-BAT Q Series - - - - - - - - - -
RS Stock No. 624-1825
Mfr. Part No.F2-40BL
BrandMitsubishi
€67.60
Each
units
F2-40BL FX2N Series - - - - - - - - - -
RS Stock No. 750-8630
Mfr. Part No.2080-PS120-240VAC
€39.16
Each
units
Micro 800 Micro800 Series 120 → 240 V ac - - - - - - - - -
RS Stock No. 647-2502
Mfr. Part No.Q61P
€209.07
Each
units
Q61 PSU Series, Q Series 100 → 240 V ac 5V dc 6 A - - - - 0°C +55°C -
RS Stock No. 698-7782
Mfr. Part No.1763-BA
€46.51
Each
units
- MicroLogix 1100 Series - - - - - - - - - -
RS Stock No. 282-3619
Mfr. Part No.TSX17ACC1
€40.00
Each
units
TSX TSX17 Series - - - - - - - - - -
RS Stock No. 698-7708
Mfr. Part No.1769-PA4
€318.50
Each
units
1769 Series Compact I/O Module 85 → 265 V ac 24 V dc, 5 V dc 4 A - 70mm 118mm 87mm 0°C +60°C 70 x 118 x 87 mm
RS Stock No. 875-5742
Mfr. Part No.FX5-1PSU-5V
BrandMitsubishi
€165.75
Each
units
FX5 FX5U CPU Module, FX5UC CPU Module 100 → 240 V ac 24 V dc, 5 V dc 1.2 A @ 5 V dc, 300 mA @ 24 V dc 20W 50mm 90mm 83mm - - 50 x 90 x 83 mm
RS Stock No. 698-7717
Mfr. Part No.1769-PB4
€318.50
Each
units
1769 Series Compact I/O Module 19.2 → 31.2 V dc 24 V dc, 5 V dc 4 A - 70mm 118mm 87mm 0°C +60°C 70 x 118 x 87 mm
RS Stock No. 148-010
Mfr. Part No.BMXCPS3500
€362.39
Each
units
Modicon M340 Modicon M340 100 → 240 V ac 24V dc 4.5 A 36W - - - 0°C +60°C -
RS Stock No. 698-7326
Mfr. Part No.1746-P2
€802.65
Each
units
SLC 500 - 170 → 265 V ac, 85 to132 V ac 24 V dc, 5 V dc 5 A - 74mm 140mm 145mm 0°C +60°C 74 x 140 x 145 mm
RS Stock No. 698-7578
Mfr. Part No.1769-PA2
€192.72
Each
units
1769 Series Compact I/O Module 85 → 265 V ac 5 V dc, 24 V dc 2 A - 70mm 118mm 87mm 0°C +60°C 70 x 118 x 87 mm
RS Stock No. 512-5918
Mfr. Part No.CJ1W-PA202
BrandOmron
€212.42
Each
units
CJ1W CJ1M Series 85 → 264 V ac 5 V dc, 24 V dc 400 mA 14W 81.6mm 90mm 45mm 0°C +55°C 81.6 x 90 x 45 mm
RS Stock No. 539-0910
Mfr. Part No.FX3U-32BL
BrandMitsubishi
€65.00
Each
units
FX3U MELSEC Series - - - - - - - - - -
RS Stock No. 455-6664
Mfr. Part No.Q63P
BrandMitsubishi
€313.95
Each
units
Q63 MELSEC Q Series 24 V dc 5V dc 6 A - 55.2mm 98mm 90mm - - 55.2 x 98 x 90 mm
RS Stock No. 614-0643
Mfr. Part No.6GK5791-1PS00-0AA6
BrandSiemens
€525.20
Each
units
PS791 SCALANCE 90 → 265 V ac 24V dc 420 mA 10W 125mm 60mm 130mm -20°C +60°C 125 x 60 x 130 mm
RS Stock No. 746-6104
Mfr. Part No.3RX9501-0BA00
BrandSiemens
€283.50
Each
units
3RX950 AS-I Power Supply Unit 120 V ac, 230 V ac 30V dc 3 A - 125mm 50mm 125mm - - 125 x 50 x 125 mm
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