Buyer’s Guide to the 140CPS11400C Power Supply Module
When a Modicon Quantum rack loses its power supply, the whole line stops. The Schneider Electric 140CPS11400C is the module that keeps that rack running, converting 115 to 230 V AC into a stable 24 V DC output at up to 8 A. This guide helps you confirm it fits your panel, your environment and your uptime goals before you order.
What This Module Does in a Quantum System
The 140CPS11400C belongs to the Schneider Electric Modicon Quantum product line. It accepts an input voltage range of 115 to 230 V AC at 50 or 60 Hz and delivers 24 V DC with an 8 A current rating. That combination suits control panels running I/O modules, communication cards and processor hardware from one supply rail. Because the input range covers both common industrial mains levels, the same module works across regions and voltage standards without a step-down transformer.
Key Specifications at a Glance
| Parameter | Value |
|---|---|
| Input voltage | 115 to 230 V AC |
| Input frequency | 50/60 Hz |
| Output voltage | 24 V DC |
| Output current | 8 A |
| Power dissipation | 150 W |
| Protection class | IP20 |
| Ambient temperature | 0 to 40 degrees Celsius |
| Operating humidity | Up to 80% RH, non-condensing |
| Storage humidity | Up to 80% RH, non-condensing |
| Maximum altitude | 1000 meters without derating |
| Dimensions (L x W x H) | 120 x 100 x 154 mm |
| Weight | 1.5 kg |
Practical Fit: Panel Space, Heat and Environment
The 150 W power dissipation figure matters when you plan cabinet cooling. At 8 A output, this module does real work, so leave clearance around the 120 x 100 x 154 mm housing and keep airflow moving. The IP20 rating means the unit belongs inside an enclosure, away from dust and moisture. Plan for an ambient range of 0 to 40 degrees Celsius and humidity up to 80% RH without condensation. Above 1000 meters, check derating guidance before commissioning.
Where the 140CPS11400C Earns Its Place
Oil and gas operators often run Quantum racks in pump stations, compressor control rooms and pipeline monitoring cabinets. A single 24 V DC rail at 8 A can feed processor, I/O and communication modules together, which simplifies panel design. In water treatment and factory automation, the wide 115 to 230 V AC input lets maintenance teams standardize on one spare across sites with different mains supplies. That standardization cuts the number of part numbers a storeroom must hold.
Integration and Replacement Notes
Before swapping a supply module, confirm the rack model, slot position and load budget. Total the current draw of every module on the rail and compare it with the 8 A rating. If your Quantum system communicates over a fieldbus network, wiring changes may require an external gateway or connection module; confirm cables and gateways with your supplier. Keep input wiring separated from signal cabling, and verify the 50/60 Hz supply matches your site before power-up.
Maintenance and Long-Term Reliability
Inspect the module periodically for dust build-up, loose terminal connections and signs of overheating. Because the unit relies on convection and cabinet airflow, a clogged filter or failed fan elsewhere in the panel can shorten its life. Log the ambient temperature near the rack during summer peaks; sustained operation near 40 degrees Celsius leaves little margin. Keeping a ready-to-ship spare on the shelf turns a potential multi-day outage into a quick change-out.
Selection Checklist
Verify these points before you buy: rack compatibility with the Modicon Quantum line, available 115 to 230 V AC supply, total 24 V DC load under 8 A, panel space for a 120 x 100 x 154 mm module, and cabinet conditions within the stated temperature and humidity limits. Oil AutoTech offers hands-on technical selection help and fast dispatch, worldwide, so you can match the right module to your rack the first time.
Please verify current lifecycle status and availability with Oil AutoTech before ordering. Contact Oil AutoTech today for pricing and availability.
