Reliable Power for Modicon Quantum Systems
Maintenance engineers know that a stable power supply is the backbone of any control system. The 140CPS21400C from Schneider Electric delivers exactly that for the Modicon Quantum automation platform. This power supply module accepts a 24 V DC input (20–30 V DC range) and provides a steady 5.1 V DC output at up to 8 A, making it a practical choice for demanding industrial environments.

Technical Specifications That Matter
The 140CPS21400C handles an input current of 3800 mA and manages inrush currents of 14 A at 20 V and 25 A at 24 V. A 5 A slow-blow fuse protects the input circuit. The module tolerates power interruptions of up to 100 ms (1 ms at 20 V), which helps maintain operation during brief supply fluctuations.
Output protection includes internal overvoltage and overload safeguards. A green LED indicates PWR OK status, and an alarm output (1 NC, 6 A at 220 V) signals power supply faults. The module operates from 0…60 °C and up to 5000 m altitude, with 95% relative humidity without condensation.
Built for Tough Environments
The 140CPS21400C carries a conformal coating (Humiseal 1A33) for added protection. It resists electrostatic discharge at 4 kV contact and 8 kV air, and electromagnetic fields at 10 V/m from 80…2000 MHz. Certifications include CE, cUL, UL 508, CSA C22.2 No 142, and FM Class 1 Division 2.

Maintenance and Service Perspective
From a maintenance standpoint, the 140CPS21400C simplifies troubleshooting. The front-panel PWR OK LED gives immediate visual confirmation of power status. The alarm output allows remote fault signaling, reducing downtime. Periodic inspection of the fuse and connections is recommended. The module’s standard format and 0.65 kg weight make replacement straightforward.
Compatibility and Integration
This power supply module is designed for the Modicon Quantum platform. It integrates directly into Quantum racks. For systems using fieldbus networks, confirm gateway or connection module requirements with your supplier. The 140CPS21400C is a summable power supply, meaning multiple modules can be combined for higher current demands.
Selection Checklist
Before ordering, verify your system’s input voltage range and required output current. Confirm the module format matches your rack. Oil AutoTech provides hands-on technical selection help and fast dispatch, worldwide. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
