Description

Schneider Electric 140CPS21400 Modicon Quantum Power Supply Module

Configured for regulated backplane power delivery in the Modicon Quantum automation platform, the Schneider Electric 140CPS21400 (140CPS21400 Power Supply Module) provides direct electrical power conversion from a 24 VDC input to the internal PLC backplane supply. The module supports summable power supply operation and incorporates integrated overload and overvoltage protection for controlled power distribution.

Suffix Breakdown & Model Matrix

The supplied documentation identifies 140CPS21400 as a single fixed catalog number. No official suffix decomposition or ordering matrix is specified.

Hardware Specifications

Parameter	Specification
Model	140CPS21400
Brand	Schneider Electric
Product Series	Modicon Quantum
Product Type	Power Supply Module
Origin	Not specified
Input Voltage	24 VDC (20...30 VDC)
Input Current	3800 mA
Inrush Current	14 A at 20 VDC; 25 A at 24 VDC
Maximum Input Power Interruption	100 ms; 1 ms at 20 VDC
Associated Fuse	5 A slow-blow
Output Voltage	5.1 VDC
Output Current	8 A, summable
Output Protection	Internal overvoltage and overload protection
Alarm Output	1 NC contact, 6 A, 220 V, power supply fault
Local Indication	Green PWR OK LED
Power Consumption	Power dissipation: 6 + (1.8 x Iout), where Iout is output current in A
Weight	0.65 kg
Dimensions	Package dimensions: 31 x 17 x 4.5 cm
Operating Temp	0...60 degC
Storage Temp	-40...85 degC
Relative Humidity	95%, non-condensing
Operating Altitude	Up to 5000 m
Electrostatic Discharge Immunity	4 kV contact; 8 kV air
Electromagnetic Field Immunity	10 V/m, 80...2000 MHz
Certifications	CE, cUL, FM Class 1 Division 2
Applicable Standards	UL 508, CSA C22.2 No. 142

Backplane Power Distribution Characteristics

The module supplies 5.1 VDC to the Modicon Quantum backplane with a maximum output current of 8 A. Its summable power supply configuration allows operation with compatible Quantum power modules to increase available backplane current. Internal protection circuits supervise output overvoltage and overload conditions, while a normally closed alarm contact provides external indication of power supply faults. Status indication is available through the front-panel PWR OK LED.

Frequently Asked Questions

Q: Does this module support redundant or summable power operation?
A: Yes. The specification identifies the unit as a summable power supply module, allowing compatible Quantum power supplies to share backplane power capacity.

Q: What occurs during a power supply fault?
A: The module provides a normally closed alarm relay rated at 6 A, 220 V that changes state when a power supply fault is detected. Internal protection also monitors overload and overvoltage conditions.

Q: Is hot replacement specified in the provided documentation?
A: No. The supplied documentation does not specify hot-swap capability. Module replacement should follow the maintenance procedure defined for the Modicon Quantum platform.

Field Installation Guidelines

• Verify that the incoming supply remains within the specified 20...30 VDC input range before energizing the module.
• Install the specified 5 A slow-blow input fuse to provide input circuit protection.
• Confirm correct seating of the module in the Quantum backplane before applying power.
• Separate power wiring from high-noise motor or switching cables where practical.
• Connect protective earth according to the system grounding practice to minimize electrical interference.
• Confirm the PWR OK LED indicates normal operation after system startup.
• When using multiple summable power supplies, verify total backplane current requirements before commissioning.

Specifications

• Brand: Schneider Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems