Product Details

Modicon 7428-042-24809 is a rugged industrial power supply module and reliable 24vdc power unit for legacy Modicon PLC racks and automation cabinets. This rack power supply converts universal AC input into stable regulated 24 VDC power to feed CPU, I/O modules, communication adapters and field sensors within the control system. It adopts switch-mode design with low ripple and high conversion efficiency, built to run continuously under heavy vibration and fluctuating power conditions common in process plants. The front panel integrates LED indicators for power good, overload and fault status, while screw terminal blocks simplify mains and DC output wiring. With comprehensive built-in electrical protection, it prevents downstream control hardware from damage caused by surge, short circuit and over-temperature. As a discontinued legacy spare, this industrial power supply module serves as a drop-in replacement to restore stable DC power distribution for ageing Modicon automation racks.

Basic Parameters

Brand: Modicon (AEG / Schneider legacy)

Model: 7428-042-24809

Product Type: Rack Mount Industrial Switching Power Supply Module

Compatible Rack: Legacy Modicon control chassis and automation cabinet systems

Input Range: 85–265 VAC single phase, 50 / 60 Hz

Output: Regulated 24 VDC, adjustable ±10%

Output Current: 10 A continuous at rated temperature

Mounting: Chassis slot / DIN rail optional

Indicator: Front LED for power, overload and thermal fault

Termination: Heavy-duty screw terminal block

Product Status: Discontinued, end of original production

Net Weight: Approximately 1.42 kg

Supported Functions

This industrial power supply module provides steady 24 VDC power for the whole control rack. The 24vdc power unit maintains stable output voltage under varying AC input and dynamic load changes. This rack power supply supports overcurrent shutdown, overvoltage clamp and thermal cut-off to protect itself and connected PLC hardware. It monitors internal operating status and triggers fault indication once abnormal conditions are detected. It can work alongside Modicon CPU, analog, discrete and remote I/O modules to maintain reliable power for the complete legacy control system.

Core Functions

As a dedicated rack power supply, this industrial power supply module acts as the central power source for the automation rack, converting raw mains power into clean, regulated DC power required by sensitive Modicon control electronics. It suppresses incoming line noise and limits fault propagation across the DC bus. This 24vdc power unit works as a direct spare to rebuild reliable power feeding for ageing Modicon automation racks.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

Relative Humidity: 5%–95%, non-condensing

Housing: Shielded metal enclosure with integrated heat sink

Protection: Overload, short-circuit, overvoltage and overtemperature protection

Anti-interference: Input EMI filter to attenuate power-line conducted interference

Compatibility: Legacy Modicon PLC chassis, 24 VDC I/O modules, remote I/O adapters

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note：Confirm rack power rating, load current demand, input voltage and terminal polarity before ordering.

This is from our current stock.

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