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 PLCs 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$3,367.39
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 868-7377
製造零件編號750-610
BrandWago
HK$321.80
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 510-4630
製造零件編號ZENPA03024
BrandOmron
HK$1,423.20
單位
ZEN-PA Series ZEN 100 → 240 V ac 24V dc 1.3 A 30W 90mm 70mm 56mm -10°C +60°C 90 x 70 x 56 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 148-032
製造零件編號BMXCPS2010
HK$2,070.64
單位
Modicon M340 Modicon M340 24 V dc 24V dc 2.5 A 16.8W - - - 0°C +60°C -
全新
RS庫存編號 197-4296
製造零件編號89451006
BrandCrouzet
HK$634.81
單位
MPS24 Designed for a wide range of industrial and building applications 100 240 V - 2.5 A 60W - - - - - 54 x 91 x 55.6 mm
全新
RS庫存編號 197-4297
製造零件編號89451010
BrandCrouzet
HK$836.74
單位
MPS24 Designed for a wide range of industrial and building applications 100 240 V - 4.2 A 100W - - - - - 72 x 91 x 55.6 mm
全新
RS庫存編號 197-4294
製造零件編號89451001
BrandCrouzet
HK$331.86
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 875-5742
製造零件編號FX5-1PSU-5V
BrandMitsubishi
HK$1,471.93
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 470-9470
製造零件編號AC1254
HK$2,574.86
單位
AC1254 Series AS-i - 29.5 → 31.6V dc - - - - - -10°C +70°C -
RS庫存編號 647-2502
製造零件編號Q61P
HK$1,803.74
單位
Q61 PSU Series, Q Series 100 → 240 V ac 5V dc 6 A - - - - 0°C +55°C -
RS庫存編號 746-6081
製造零件編號3RX9503-0BA00
BrandSiemens
HK$10,992.00
單位
3RX950 AS-I Power Supply Unit 120 V ac, 230 → 500 V ac 30V dc 8 A - 125mm 120mm 125mm - - 125 x 120 x 125 mm
RS庫存編號 746-6104
製造零件編號3RX9501-0BA00
BrandSiemens
HK$2,494.84
單位
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
RS庫存編號 488-9560
製造零件編號MFD-CP4-800
BrandEaton
HK$1,055.23
單位
Easy 800 Easy 800 Series 24 V dc - - 1.5W 107.5mm 29.5mm 90mm -25°C +55°C 107.5 x 29.5 x 90 mm
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
全新
RS庫存編號 197-4295
製造零件編號89451003
BrandCrouzet
HK$490.55
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
RS庫存編號 135-5213
製造零件編號140CPS11420
HK$10,970.96
單位
- Modicon PLC - - - - - - - - - -
RS庫存編號 147-893
製造零件編號BMXCPS3020
HK$4,590.00
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 512-5918
製造零件編號CJ1W-PA202
BrandOmron
HK$2,039.41
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 512-5924
製造零件編號CJ1W-PD025
BrandOmron
HK$2,561.12
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