Product Overview

The 140CPS12420 (Model: 140CPS12420) is a high-capacity AC power supply module designed for the Schneider Electric Modicon Quantum automation platform. Engineered to support large-scale backplanes, it delivers a robust 11A of current to the 5.1V DC bus, ensuring stable operation for racks fully populated with high-density I/O, specialized motion controllers, and communication processors.

This module is a cornerstone for high-availability architectures. The 140CPS12420 (Part Number: 140CPS12420) supports both standalone and redundant configurations. When installed in pairs on a redundant-capable backplane, it provides a "summing" or "standby" failover mechanism, ensuring that the PLC system remains energized even if one power source or module failure occurs. Its single-slot Quantum format allows for maximum rack efficiency while providing critical diagnostic feedback via an integrated fault relay.

Detailed Technical Specifications

The 140CPS12420 is built for industrial-grade power regulation and system protection.

• Manufacturer: Schneider Electric

• Product Series: Modicon Quantum

• Model Number: 140CPS12420

• Input Voltage: 115 V AC / 230 V AC (Selectable via manual slide switch)

• Input Frequency Range: 47–63 Hz

• Output Voltage: 5.1 V DC (Backplane bus)

• Output Current: 11 A

• Redundancy Support: Yes (Requires redundant backplane; no software configuration required)

• Status Indicators: Green LED (Power OK)

• Fault Monitoring: 1 NC (Normally Closed) dry contact relay (Opens on DC failure)

• Inrush Current: 38 A @ 115 V AC / 19 A @ 230 V AC

• Maximum Power Dissipation: 30 W

• Isolation Voltage: 1500 Vrms for 60s (Input to Ground)

• Protection: Internal primary fuse (External 2A slow-blow fuse recommended for branch protection)

• Form Factor: Standard 1-slot Quantum module

• Net Weight: 0.65 kg (1.43 lbs)