Schneider Electric 140CPS12420 Modicon Quantum Redundant Power Supply Module

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

Engineering Advantages

• 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.

• 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.

• 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.

• 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

• 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.

• 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.

• 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.