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庫存編號 510-1502
製造零件編號CJ1W-PA205R
BrandOmron
HK$2,882.88
單位
CJ1W CJ1M Series 85 → 264 V ac 5 V dc, 24 V dc 5 A 25W 81.6mm 90mm 80mm 0°C +55°C 81.6 x 90 x 80 mm
RS庫存編號 868-7365
製造零件編號750-612
BrandWago
HK$170.03
單位
750 I/O Module 24 V dc - - - 64mm 12mm 100mm -20°C +60°C 64 x 12 x 100 mm
RS庫存編號 868-7377
製造零件編號750-610
BrandWago
HK$323.33
單位
750 I/O Module 24 V dc - - - 64mm 12mm 100mm 0°C +60°C 64 x 12 x 100 mm
RS庫存編號 148-032
製造零件編號BMXCPS2010
HK$2,080.47
單位
Modicon M340 Modicon M340 24 V dc 24V dc 2.5 A 16.8W - - - 0°C +60°C -
RS庫存編號 512-5924
製造零件編號CJ1W-PD025
BrandOmron
HK$2,409.22
單位
CJ1W CJ1M Series 19.2 → 28.8 V dc 5 V dc, 24 V dc 5 A 25W 81.6mm 90mm 60mm 0°C +55°C 81.6 x 90 x 60 mm
全新
RS庫存編號 196-1249
製造零件編號2316393
HK$826.11
單位
- - - - - - 35mm 125mm 130mm -40°C +65°C 35 x 125 x 130 mm
全新
RS庫存編號 196-1260
製造零件編號1114234
HK$5,213.81
單位
- - - - - - 45mm 75mm 126.93mm -25°C +60°C 45 x 75 x 126.93 mm
RS庫存編號 197-4294
製造零件編號89451001
BrandCrouzet
HK$234.98
單位
MPS24 Designed for a wide range of industrial and building applications 100 → 240 V - 420 mA 10W - - - - - 18 x 91 x 55.6 mm
RS庫存編號 135-5202
製造零件編號140CPS12420
HK$12,425.34
單位
- Modicon PLC - - - - - - - - - -
RS庫存編號 875-5742
製造零件編號FX5-1PSU-5V
BrandMitsubishi
HK$1,458.60
單位
FX5 FX5U CPU Module, FX5UC CPU Module 100 → 240 V ac 5 V dc, 24 V dc 1.2 A @ 5 V dc, 300 mA @ 24 V dc 20W 50mm 90mm 83mm - - 50 x 90 x 83 mm
RS庫存編號 148-048
製造零件編號BMXXTSCPS10
HK$144.94
單位
BMX XTS CPS - - - - - - - - - - -
RS庫存編號 197-4295
製造零件編號89451003
BrandCrouzet
HK$347.32
單位
MPS24 Designed for a wide range of industrial and building applications 100 → 240 V - 1.25 A 30W - - - - - 36 x 91 x 55.6 mm
全新
RS庫存編號 203-2783
製造零件編號6ES7505-0KA00-0AB0
BrandSiemens
HK$1,910.38
單位
System power supply SIMATIC S7-1500 24 V - - 25W - - - - - 147 x 35 x 129 mm
全新
RS庫存編號 192-4564
BrandRS PRO
HK$1,787.50
單位
- - - - - - - - - - - -
RS庫存編號 470-9470
製造零件編號AC1254
HK$2,179.66
單位
AC1254 Series AS-i - 29.5 → 31.6V dc - - - - - -10°C +70°C -
RS庫存編號 614-0643
製造零件編號6GK5791-1PS00-0AA6
BrandSiemens
HK$4,621.76
單位
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庫存編號 512-5918
製造零件編號CJ1W-PA202
BrandOmron
HK$2,019.28
單位
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庫存編號 147-900
製造零件編號BMXXTSCPS20
HK$124.48
單位
BMX XTS CPS - - - - - - - - - - -
RS庫存編號 147-893
製造零件編號BMXCPS3020
HK$4,275.88
單位
Modicon M340 Modicon M340 24 → 48 V dc 24V dc 4.5 A 31.2W - - - 0°C +60°C -
RS庫存編號 510-1704
製造零件編號CJ1W-PD022
BrandOmron
HK$1,332.76
單位
CJ1W CJ1M Series 21.6 → 26.4 V dc 5 V dc, 24 V dc 2 A 19.6W 81.6mm 90mm 27mm 0°C +55°C 81.6 x 90 x 27 mm