Why the BMXCPS3000 Belongs in Your Spares Crate
A control rack without a reliable power supply is a production line waiting to stop. The Schneider Electric BMXCPS3000 is a Modicon X80 DC power supply module that converts a 24 V DC input into a regulated 5 V DC backplane output. It delivers 32 W of output power and supplies 4.5 A on the 5 V DC backplane rail. Maintenance engineers responsible for M340 and M580 platforms will recognise this module as the quiet workhorse that keeps I/O communication alive.
This guide approaches the BMXCPS3000 from a replacement and upgrade angle. If you maintain legacy racks or standardise spares across a plant, understanding what this module does, how it mounts, and when to replace it will save unplanned downtime.
Technical Specifications That Matter on the Floor
Input and Output Ratings
The module accepts a 24 V DC input, which suits modern DC control cabinets and battery-backed systems. It produces a 5 V DC backplane output at 4.5 A, giving 32 W of usable power for the rack. That output feeds the X-bus backplane, so every I/O module in the rack depends on it.
Protection Built In
Overload, overvoltage, and short-circuit protection are integrated. In practice, this means a fault on one I/O module is less likely to take down the whole rack. The supply limits damage and lets you isolate the problem faster.
Environmental and Physical Profile
The module operates from 0°C to +60°C and stores safely from -25°C to +70°C. Relative humidity tolerance is 5% to 95% non-condensing. It carries an IP20 protection rating, so it belongs inside a clean cabinet, not on an open panel. Dimensions are 100 × 28 × 93 mm and weight is 0.55 kg, making it compact enough for dense rack layouts.
Where This Power Supply Earns Its Keep
Water Treatment and Pumping Stations
These sites often run on 24 V DC control power. The BMXCPS3000 fits naturally into a Modicon X80 rack that manages pump logic and valve feedback. Its DC input means you can support the rack from a battery bank during mains interruptions.
Manufacturing Cells with M340 or M580 Controllers
Because the Modicon X80 platform is shared between M340 and M580, this module serves both controller families. A single spare part number covers multiple rack types, which simplifies your storeroom.
Remote Pumping and Telemetry Cabinets
When a cabinet sits far from the main panel, 24 V DC distribution is often easier than running AC. The BMXCPS3000 accepts that DC feed directly and regulates it for the backplane.
Installation and Setup Guidance
Mount the module in a compatible X-bus rack. Confirm the rack backplane matches the X80 platform before inserting the module. Verify that your 24 V DC source is stable and correctly rated for the load. Keep the cabinet within the 0°C to +60°C operating range and maintain airflow around the module. Because the rating is IP20, seal the enclosure against dust and moisture. Do not exceed the 4.5 A backplane current limit when planning I/O module counts.
Maintenance and Reliability for Service Engineers
Inspect the module periodically for signs of overheating, loose connections, or dust buildup. Check that cabinet filters and fans keep internal temperature within the operating range. The integrated protection features reduce the chance of cascading failures, but they do not replace routine inspection. Keep one spare BMXCPS3000 on the shelf. A failed backplane supply stops every I/O module in the rack, and a fast swap restores production quickly.
Compatibility and Integration
The BMXCPS3000 works with X-bus racks and supports the shared Modicon X80 I/O platform used by M340 and M580 controllers. Confirm your rack type and controller family before ordering. If you are upgrading an older rack, verify that the backplane voltage and current requirements match the 5 V DC, 4.5 A output.
Selection Checklist Before You Buy
Confirm the following before purchase: your rack is an X-bus type, your input supply is 24 V DC, and your total I/O load stays within 32 W and 4.5 A. Check that your cabinet environment stays within the operating temperature and humidity limits. SpareTechPLC stocks this module and can help you verify compatibility with your existing M340 or M580 installation.
Frequently Asked Questions
What input voltage does the BMXCPS3000 require?
It requires a 24 V DC input and produces a 5 V DC backplane output.
How much current can it supply to the backplane?
It supplies 4.5 A on the 5 V DC backplane rail, with a total output power of 32 W.
Which racks and controllers does it support?
It fits X-bus racks and supports the Modicon X80 platform shared by M340 and M580 controllers.
What protection features are included?
The module includes overload, overvoltage, and short-circuit protection.
Is this module still available?
Yes. The lifecycle status is active, last verified in 2026-09. Contact SpareTechPLC to confirm current availability.
