140CPS11420 Schneider Electric Summable AC Power Supply

Availability: 94 left in stock

Schneider Electric 140CPS11420 AC Power Supply Module Configured for high-reliability backplane power distribution in Modicon Quantum PLC platforms, the Schneider...

SKU: 140CPS11420

Manufacturer: Schneider
Product No.: 140CPS11420
Product Type: Power Supply Modules
Product Origin: France
Payment:T/T, Western Union
Weight: 650g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Schneider Electric 140CPS11420 AC Power Supply Module

Configured for high-reliability backplane power distribution in Modicon Quantum PLC platforms, the Schneider Electric 140CPS11420 (140CPS11420 Summable Power Supply) provides stable 5.1 VDC output for CPU, communication, and I/O modules via a summable, redundant-capable architecture.

Hardware Specifications

Parameter	Specification
Model	140CPS11420
Brand	Schneider Electric
Origin	Not specified
Weight	0.65 kg
Dimensions	Standard Quantum Form Factor
Operating Temp	Not specified
Input Voltage	115 VAC (93–132 V) / 230 VAC (170–276 V)
Output Voltage	5.1 VDC
Output Current	11 A (Standalone) / 20 A (Summable)
Isolation	1500 VAC (Primary to Secondary)

Industrial Power Management and Redundancy

The 140CPS11420 utilizes a summable architecture allowing for parallel operation, effectively increasing the total current capacity to 20 A or facilitating N+1 redundancy. When installed in a redundant-capable backplane, the modules share the power load, ensuring that the system remains energized if an individual unit fails. Each module includes integrated overvoltage and overload protection circuits, providing a fault-tolerant environment for process control equipment. The 1 NC dry contact output allows for immediate alarm signaling to the controller in the event of an internal power fault, facilitating proactive maintenance.

Frequently Asked Questions

Q: How is the "summable" capacity of 20 A achieved when using two units?

A: When two 140CPS11420 units are installed in a redundant-capable Quantum backplane, the backplane circuitry manages the parallel load sharing. The modules are physically and electrically synchronized to combine their current output, resulting in a total capacity of 20 A while maintaining voltage stability at 5.1 VDC.

Q: What action should be taken if the "Power OK" LED turns off during operation?

A: An off LED indicates either an input power loss or an internal module failure. Check the AC input voltage levels against the specified operating ranges (93–132 V or 170–276 V). If the input is within tolerance, check the status of the NC dry contact relay; if the contact is open (indicating a fault), the module must be replaced according to system safety protocols.

Field Installation Guidelines

Mounting: Ensure the module is fully inserted into the designated power supply slot on the Quantum backplane. Secure the unit using the integrated locking mechanism to guarantee the electrical integrity of the backplane bus connection.
Grounding: To ensure compliance with the 1500 VAC isolation rating, verify that the module chassis is securely bonded to the system protective earth (PE) ground.
Wiring: Connect AC input power using appropriately rated conductors. Maintain strict separation between high-voltage AC input wiring and low-voltage DC signal cabling within the cabinet to prevent inductive noise injection into the I/O backplane.

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