Product Details
Product Overview
The Schneider Electric 140CPS12420 delivers continuous, uninterruptible electrical power to the Modicon Quantum automation architecture. Engineered for high-availability setups, this redundant power supply module protects critical control loops from total system downtime during primary utility failures. It feeds stable regulated voltage directly to the backplane, sustaining CPU operations, network interfaces, and high-density distributed I/O racks in heavy-process industries like oil refining, power generation, and chemical processing.
Technical Specifications
| Parameter | Technical Specification Data |
| Manufacturer | Schneider Electric |
| Part Number | 140CPS12420 |
| Product Line | Modicon Quantum |
| Product Type | Redundant Power Supply Module |
| Condition | 100% Brand New Original |
| Input Voltage | 115 / 230 V AC (Auto-sensing, 50/60 Hz frequency) |
| Rated Power Capacity | 130 VA |
| Output Voltage | 5.1 V DC |
| Input Current Profile | 1100 mA at 115 V AC / 600 mA at 230 V AC |
| Overcurrent Protection | 2 A, slow-blow fuse |
| Fault Signaling | 1 Normally Closed (NC) alarm output contact |
| Status Indication | Integrated LED diagnostic arrays |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Net Weight | 2.00 lbs (0.91 kg) |
Engineering Advantages
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True Hot-Standby Redundancy: When installed in a dual-supply configuration, this module works alongside an identical unit to share the system load. If one power source drops line voltage, the healthy module instantly shoulders the entire load without causing a CPU reset or dropping I/O communication.
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Proactive Fault Notification: The integrated Normally Closed (NC) alarm contact connects directly to telemetry systems or digital input points. This feature immediately alerts plant operators of a localized power supply failure, allowing maintenance teams to swap the broken module before a secondary failure triggers catastrophic system shutdown.
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Grid Noise Mitigation: Severe transients, harmonic distortions, and frequency shifts plague industrial power lines. The internal circuitry of the 140CPS12420 shields sensitive microprocessor components from these upstream anomalies, converting raw 115/230 V AC into clean, ripple-free 5.1 V DC backplane logic power.
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Rapid Rack Installation: The modular plug-and-play mechanical layout slides directly into standard Quantum backplanes. Front-facing terminal blocks facilitate swift wiring termination and fast hot-swapping under live-voltage conditions, reducing Mean Time to Repair (MTTR).
FAQs
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Do you supply this power supply as a brand new unit?
Yes. We supply this product as a 100% brand new, original factory-sealed unit in its authentic manufacturer packaging, ensuring optimal components lifespan and factory-level reliability.
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Do I need to toggle a manual switch to configure the 115V or 230V AC input voltage?
No. The module dynamically senses the incoming input line voltage and self-configures to match the 115V or 230V grid parameters automatically, preventing human error during field deployment.
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How does the unit communicate an internal hardware fault to the control room?
The module utilizes two separate mechanisms. On-board front LED indicators provide immediate visual diagnostics for field technicians, while the physical NC alarm contact opens upon internal component failure, triggering an automated alarm in your centralized SCADA or DCS system.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.
Optimizing Power Supply Sizing for Industrial Automation Systems
The power supply is the silent heartbeat of any industrial automation system. While engineers often prioritize processors and communication protocols, a stable power architecture remains the most critical factor for long-term reliability. In my 15 years of experience, I have found that neglecting power supply sizing often leads to ghost errors, intermittent field device failures, and costly production downtime.