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140CPS12420C | Schneider 115-230V Power Supply Module
Introduction to the 140CPS12420C
When your Modicon Quantum system demands stable and dependable power, the 140CPS12420C from Schneider Electric provides a robust solution. This power supply module accepts a wide input voltage range of 115 V to 230 V, making it versatile for various industrial environments. With a rated output of 5.1 V DC, it ensures your control system operates without interruption.
Part of the Modicon Quantum product line, the 140CPS12420C is engineered for seamless integration. Its compact design and lightweight construction simplify installation, while its internal protection features safeguard connected equipment.

Key Features & Technical Specifications
The 140CPS12420C offers several technical advantages that enhance system reliability:
- Input Voltage: 115 V to 230 V AC, accommodating global power standards.
- Input Current: 1100 mA, ensuring efficient power conversion.
- Inrush Current: 19/38 A, managing startup surges effectively.
- Rated Power: 130 VA, providing ample capacity for connected loads.
- Output Voltage: 5.1 V DC, suitable for Modicon Quantum logic modules.
- Alarm Output: 1 NC contact rated 6 A at 220 V, signaling power supply faults.
- Local Signalling: Green LED (PWR OK) for immediate status indication.
- Output Overvoltage Protection: Internal, protecting downstream equipment.
One distinctive feature is the internal output overvoltage protection. This built-in safeguard prevents voltage spikes from reaching your sensitive control components, reducing the risk of damage and downtime.
Applications & Use Cases
This power supply is ideal for manufacturing lines, process control systems, and infrastructure automation where consistent 5.1 V DC power is critical. For example, in a bottling plant, the 140CPS12420C ensures uninterrupted operation of the PLC, minimizing production stoppages. Additionally, its wide input range makes it suitable for facilities with fluctuating utility power.

Installation & Setup
Mounting the 140CPS12420C is straightforward. It fits into standard Modicon Quantum racks, and the associated fuse rating is 2A slow-blow, which should be installed in series with the input line. Ensure the input voltage is within the specified range before powering up. The alarm output provides a normally closed contact that can be wired to a monitoring system to alert operators of power faults.
Maintenance & Reliability
Regular inspection of the power supply module is recommended to maintain reliability. Check the input connections for tightness and verify that the green PWR OK LED is illuminated during normal operation. Periodically test the alarm output to confirm it activates correctly during a simulated fault. These simple steps help extend the service life of the module and prevent unexpected failures.
Compatibility & Integration
The 140CPS12420C is designed exclusively for the Modicon Quantum series. It integrates seamlessly with Quantum backplanes and is compatible with the associated power distribution components. Always verify that your rack configuration supports this power supply module before installation.
Troubleshooting & Common Issues
If the PWR OK LED is not lit, check the input voltage and fuse. A blown fuse may indicate a short circuit or overload; replace it with the specified 2A slow-blow type. If the alarm output is active, it signals a power supply fault—review the connected load to ensure it does not exceed the rated power. For persistent issues, consult the official Schneider documentation or contact Petro Auto Tech for assistance.
FAQ
Q: What is the input voltage range of the 140CPS12420C?
A: The input voltage range is 115 V to 230 V AC.
Q: What output voltage does this module provide?
A: It provides a rated output of 5.1 V DC.
Q: How does the alarm output work?
A: The alarm output is a normally closed contact rated at 6 A, 220 V, which opens on a power supply fault.
Q: What is the recommended fuse rating?
A: Use a 2A slow-blow fuse.
Product Support & Availability
The 140CPS12420C is available from Petro Auto Tech. Contact our team for current stock and delivery options. We are ready to support your automation needs.
| Part Number | 140CPS12420C |
| Condition | In Stock |
| Stock Status | In Stock (Ready to Ship) |
| Weight | 0.5 kg |
| Warranty | 12 Month |
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Shipping Port: Xiamen
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