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
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.