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$2,540.00
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 148-032
製造零件編號BMXCPS2010
HK$1,537.84
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 510-4630
製造零件編號ZENPA03024
BrandOmron
HK$1,129.79
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 868-7377
製造零件編號750-610
BrandWago
HK$270.93
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 868-7365
製造零件編號750-612
BrandWago
HK$162.80
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 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 135-5202
製造零件編號140CPS12420
HK$10,760.47
單位
- Modicon PLC - - - - - - - - - -
RS庫存編號 148-026
製造零件編號BMXCPS2000
HK$2,380.00
單位
Modicon M340 Modicon M340 100 → 240 V ac 24V dc 2.5 A 20W - - - 0°C +60°C -
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 148-048
製造零件編號BMXXTSCPS10
HK$136.00
單位
BMX XTS CPS - - - - - - - - - - -
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 703-7078
製造零件編號MPA5500/RS
BrandMTL
HK$973.94
單位
MTL5500 MPA550 85 → 265 V ac 24V dc 120 mA 1.2W 15.8mm 118.8mm 133mm -20°C +60°C 15.8 x 118.8 x 133 mm
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 746-6117
製造零件編號3RX9502-0BA00
BrandSiemens
HK$2,978.02
單位
3RX950 AS-I Power Supply Unit 120 V ac, 230 V ac 30V dc 5 A - 125mm 70mm 125mm - - 125 x 70 x 125 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 827-5378
製造零件編號9410
HK$1,275.97
單位
9400 - 21.6 → 26.4 V dc 25.9V dc 4 A 96W 109mm 23.5mm 104mm -20°C +60°C 109 x 23.5 x 104 mm
RS庫存編號 827-3786
製造零件編號140CPS11420C
HK$11,930.95
單位
Modicon Quantum Modicon Quantum 93 → 132 V ac, 170 → 264 V ac - 11 A - - - - -25°C +70°C -
RS庫存編號 135-5213
製造零件編號140CPS11420
HK$9,547.45
單位
- Modicon PLC - - - - - - - - - -
RS庫存編號 623-7652
製造零件編號VAN-115/230AC-K16
HK$3,655.18
單位
VAN AS-I - 30.55V dc 8 A - 91mm 124mm 102mm -10°C +70°C 91 x 124 x 102 mm
RS庫存編號 746-6104
製造零件編號3RX9501-0BA00
BrandSiemens
HK$2,300.79
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