Schneider 140CPS11420C

Product Overview

The Schneider Electric 140CPS11420C is an AC power supply module specifically designed for the Modicon Quantum series of programmable logic controllers (PLCs). It plays a vital role in supplying stable and regulated DC voltage to the Quantum backplane and the modules connected to it. Operating on either 115 or 230 volts AC input, it delivers a regulated 5.1 V DC output required by the processor, I/O, and communication modules.

Designed with robustness and efficiency in mind, this power supply module supports both standalone and redundant (summable) operation modes, giving system designers the flexibility to match specific power demands. Its rugged design and reliability make it an integral component in mission-critical industrial automation systems where consistent power delivery is essential.

Key Features

1. Input and Output Specifications

• Input Voltage Range: Supports both 115 V AC and 230 V AC nominal inputs (ranging from 93–132 V AC and 170–276 V AC respectively).

• Output Voltage: Provides a regulated 5.1 V DC output, ensuring consistent voltage to all modules in the Quantum rack.

2. Output Current Capability

• Standalone Mode: Capable of delivering up to 11 Amps.

• Summable Mode: When used in parallel with another power supply, can deliver a total of 20 Amps, ideal for high-load systems.

3. Protection and Safety

• Integrated overvoltage, overcurrent, and thermal protection mechanisms safeguard both the power supply and the attached modules.

• 1500 V RMS isolation between input and output enhances protection from voltage spikes and ground faults.

4. Status Indicators

• Equipped with front panel LED indicators to display module and output status, allowing quick diagnostics during maintenance.

5. Environmental and Mechanical Strength

• Operating temperature: 0°C to 60°C

• Storage temperature: -40°C to +85°C

• Humidity tolerance: Up to 95% non-condensing

• Designed to operate up to 5000 meters altitude

• Vibration- and shock-resistant enclosure suitable for harsh industrial settings

6. Certifications and Compliance

• Meets international standards for industrial electrical equipment, including UL, CSA, and CE compliance.

• Designed in accordance with IEC 61131-2 guidelines for programmable controllers.

Applications

The 140CPS11420C is widely used in a broad range of industries and applications, particularly where high reliability and modular scalability are crucial.

1. Industrial Process Control

• Powers automation systems in chemical, petrochemical, pharmaceutical, and food processing plants, where precision and reliability are critical.

2. Energy and Utilities

• Supports control systems in power generation, water treatment plants, and substation automation, ensuring uninterrupted operation in infrastructure systems.

3. Manufacturing and Assembly Lines

• Provides stable voltage to PLCs controlling robotic lines, conveyor systems, material handling units, and automated inspection systems.

4. Transportation and Infrastructure

• Integrated into control systems for rail networks, tunnels, airports, and smart city infrastructure.

5. Redundant and Mission-Critical Systems

• Ideal for use in dual-redundant configurations, where power availability must be maintained under all conditions, including in safety instrumented systems (SIS).

Why Choose the Schneider Electric 140CPS11420C

1. Designed for Modicon Quantum

• The 140CPS11420C is specifically engineered for the Quantum platform, ensuring seamless integration and compatibility with processors, I/O modules, and communication units.

2. Reliable Power Delivery

• Built for environments where downtime is unacceptable, the module ensures highly stable DC output even under fluctuating AC input conditions.

3. Redundant Capability

• The summable configuration allows two units to be used in parallel to increase current capacity or provide backup, enhancing the reliability of the system.

4. Robust Construction

• With high tolerance for temperature, humidity, vibration, and altitude, the module is suitable for installation in demanding industrial environments.

5. Long Service Life

• With its durable build quality and conservative design margins, this module is known for its longevity and minimal maintenance needs.

6. Field-Proven Performance

• Installed in thousands of control systems globally, the 140CPS11420C has a strong track record of performance, making it a trusted choice for engineers and system integrators.

Conclusion

The Schneider Electric 140CPS11420C AC power supply module stands as a reliable and robust component for powering Modicon Quantum automation systems. Its dual-mode operation (standalone or summable), wide input range, protective features, and compatibility with harsh environments make it a valuable choice in high-performance industrial control applications. While the model is now discontinued, it remains widely respected in legacy systems and continues to deliver dependable operation in critical infrastructure worldwide.