Schneider 140CPS12400C | 24VDC 40W Power Supply Module

The Schneider 140CPS12400C provides reliable power for Quantum PLC backplanes. This power supply module converts 115 to 230 VAC into stable 24 VDC output. You can use it to feed logic controllers and I/O modules simultaneously. The unit delivers up to 40 watts of continuous operating power.

Input and Output Specifications

Parameter	Specification
Brand	Schneider Electric
Model	140CPS12400C
Product Type	Power Supply Module
Input Voltage	85 to 264 VAC (auto-ranging)
Input Frequency	47 to 63 Hz
Output Voltage	24 VDC nominal
Output Current	1.7 A maximum
Output Power	40 W continuous
Efficiency	85% typical at full load
Hold-up Time	20 ms minimum

The Schneider 140CPS12400C accepts universal AC input without jumpers. This auto-ranging feature simplifies installation in global applications. The output delivers 1.7 amps continuously at 24 VDC. You can draw short bursts up to 2.5 amps for 10 seconds.

Physical Dimensions and Weight

Parameter	Specification
Weight	0.65 kg (1.43 lbs)
Height	130 mm
Width	35 mm (single slot)
Depth	165 mm
Mounting	Quantum rack backplane

This power supply occupies only one slot in a Quantum rack. The module weighs 0.65 kg for easy handling during installation. Its compact 35 mm width saves valuable backplane space. You can slide the Schneider 140CPS12400C directly into any Quantum chassis.

Energy Storage and Backup Features

An internal 470 µF capacitor provides output hold-up energy. This capacitor stores enough charge for 20 ms of ride-through. During this short period, the module continues supplying 24 VDC without interruption. The Schneider 140CPS12400C does not include a replaceable battery. For extended backup, you can connect an external 24 VDC battery to the output terminals.

Connectors and Interface Details

The front panel features one removable 5-pin terminal block. This terminal block accepts wire sizes from 0.2 to 2.5 mm². You will find separate terminals for AC input, ground, and DC output. Two LED indicators show power presence and output status. A green LED lights up when the output voltage reaches 22.5 VDC or higher.

Protection and Operational Safety

This module includes overcurrent and short-circuit protection. The device automatically resets after removing a fault condition. An internal fuse protects against catastrophic input overvoltage events. You do not need to replace this fuse externally. The Schneider 140CPS12400C also features thermal shutdown at 85°C internal temperature.

System Integration Benefits

Transitioning to this power supply simplifies your Quantum system design. You can power the CPU, communication modules, and I/O racks together. The module operates efficiently from 0°C to 60°C ambient temperature. For best results, mount this unit away from high-heat sources like large contactors.