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 413-469
製造零件編號88950302
BrandCrouzet
HK$1,130.22
單位
PS PS Series 100 → 240 V ac 24V dc 2.5 A 60W 110mm 72mm 56.1mm -25°C +55°C 110 x 72 x 56.1 mm
RS庫存編號 483-991
製造零件編號88950307
BrandCrouzet
HK$670.32
單位
PS Millenium III Series 100 → 240 V 22.8 → 28.8V dc 1.2 A 30W 54mm 100mm 56.1mm -25°C +55°C 54 x 100 x 56.1 mm
RS庫存編號 413-504
製造零件編號88950306
BrandCrouzet
HK$756.67
單位
PS Millenium III Series 100 → 240 V 11.4 → 15V dc 2.1 A 25W 54mm 100mm 56.1mm -25°C +55°C 54 x 100 x 56.1 mm
RS庫存編號 413-500
製造零件編號88950304
BrandCrouzet
HK$676.05
單位
PS PS Series 100 → 240 V ac 24V dc 600 mA 15W 110mm 36mm 56.1mm -25°C +55°C 110 x 36 x 56.1 mm
RS庫存編號 413-487
製造零件編號88950303
BrandCrouzet
HK$677.67
單位
PS PS Series 100 → 240 V ac 24V dc 300 mA 7.5W 110mm 36mm 56.1mm -25°C +55°C 110 x 36 x 56.1 mm