Description

Brief Product Description

The Schneider Electric 140CPS12420 is a high-availability redundant power supply module designed for Modicon Quantum PLC systems.² It provides reliable 115/230V AC summation power to ensure continuous operation of critical automation racks and I/O modules.³

High-Availability Power for Modicon Quantum Systems

The Schneider Electric 140CPS12420 serves as a foundational power source for the Modicon Quantum automation platform.⁴ This module specializes in providing redundant power delivery, which is essential for maintaining system uptime in mission-critical environments.⁵ By supporting an AC summation architecture, the unit allows two power supplies to work in tandem to energize the backplane. Consequently, if one power source fails, the remaining module instantly assumes the full load without interrupting the PLC’s logic execution. This seamless transition makes the 140CPS12420 an indispensable component for industries such as power generation and water treatment where process downtime results in significant operational loss.

Versatile Input Voltage and Robust Protection

Engineering teams value the 140CPS12420 for its flexible input capabilities and advanced electrical protection. The module automatically senses and adapts to two distinct voltage ranges: 93–138V AC and 170–276V AC. Furthermore, the hardware manages high inrush currents effectively, reaching up to 38A at 115V, to prevent nuisance tripping during system startup. Beyond simple power conversion, the module incorporates sophisticated circuitry to defend against overloads, short circuits, and internal overheating. These protective layers ensure that the PLC backplane receives clean, stabilized power even when the primary industrial grid experiences fluctuations or transient surges.

Industrial-Grade Reliability and Thermal Resilience

The 140CPS12420 features a ruggedized design capable of performing in extreme climate conditions. While many commercial power units fail at temperature peaks, this Modicon Quantum module maintains stable output across a broad range from -25°C up to +70°C. Additionally, the unit boasts a 92% efficiency rating, which minimizes heat dissipation within the control cabinet and contributes to a longer service life for adjacent I/O cards. Its compact 0.64 kg form factor allows for easy installation in standard Quantum racks, providing a high-density power solution that does not compromise on safety or performance.

Key Technical Characteristics

• Redundant Summation Support: Enables dual-module configurations for maximum system reliability and fault tolerance.
• Universal AC Compatibility: Operates on both 115V and 230V AC networks with automatic range switching.⁶
• Superior Thermal Range: Operates in demanding environments from arctic cold to high-heat manufacturing floors.⁷
• High Energy Efficiency: Achieves 92% efficiency to reduce the carbon footprint and cabinet cooling requirements.
• Integrated Diagnostic Monitoring: Alerts the control system to power faults or input failures immediately.⁸
• Quantum Rack Compatibility: Designed specifically for the Modicon Quantum backplane with simple slide-in mounting.

Technical Specifications