Product Overview

The 140CPS12420 is a high-availability power supply module engineered specifically for the Schneider Electric Modicon Quantum PLC platform. This module serves as a critical energy regulator for the backplane, ensuring that the central processor and I/O modules receive a stable 24V DC supply. A standout feature of this unit is its redundant capability, which allows it to operate in parallel with a second power supply unit on the same rack. This configuration creates a fail-safe power architecture, where a fault in one source does not compromise the entire automation system. It is designed to handle global power standards, automatically adjusting to a wide range of AC inputs while maintaining a high efficiency rating of approximately 92%.

Engineering Performance Data and Hardware Metrics

The 140CPS12420 is built with a ruggedized internal topology to withstand the electrical noise and thermal extremes found in heavy industrial sectors.

• Nominal Input Voltage: 115V to 230V AC

• Input Voltage Limits: 93–138V AC (115V mode) / 170–276V AC (230V mode)

• Secondary Power Output: 24V DC / 11A total power capacity

• Input Frequency: 47 Hz to 63 Hz

• Inrush Current: 38A at 115V / 19A at 230V

• Efficiency: Approximately 92% at full load

• Integrated Protections: Overload, short-circuit, and over-temperature safety shutdown

• Physical Dimensions: 4 x 10.5 x 25 cm

• Net Weight: 0.64 kg

• Thermal Tolerance: -25°C to +70°C operating temperature range

• Mounting Type: Integrated into Modicon Quantum PLC Rack

Industrial Deployment and High-Availability Use Cases

Due to its redundant design and wide temperature tolerance, the 140CPS12420 is the preferred choice for mission-critical processes where downtime results in significant financial or safety risks.

• Petrochemical and Gas Refineries: Powering logic controllers in hazardous locations where continuous monitoring of pressure and temperature is non-negotiable.

• Municipal Water Treatment: Ensuring 24/7 operation of filtration and dosing systems by utilizing the dual-supply redundancy to mitigate local grid instability.

• Energy Generation Facilities: Managing turbine control and substation automation where the system must remain live even during primary power maintenance.

• Cold Storage and Metallurgy: Operating reliably in environments ranging from sub-zero warehouses to high-heat foundries thanks to its extended -25°C to 70°C rating.

• Continuous Manufacturing: Supporting high-volume production lines where an unexpected PLC shutdown could lead to substantial product loss and mechanical damage.