Eaton F880-CR-PS Power Supply

The F880-CR-PS is an integral component of the Eaton F-series compact PLC system. It converts AC line voltage to regulated 24VDC necessary to power the CPU, I/O modules, and optionally field devices. Its slim profile and integrated backplane connection simplify panel assembly.

Input Characteristics

The power supply accepts a wide input voltage range: 100-240VAC, 50/60Hz (or 110-350VDC), making it suitable for global applications. It features a built-in fuse and inrush current limiter. The input is isolated from the output (SELV) with a basic insulation level of 3000VAC.

Output Specifications

The F880-CR-PS delivers a nominal 24VDC output at 3A continuous. Output voltage is adjustable via a trimmer (24-28V range) to compensate for line drops. Regulation is better than 3% for line and load variations. Ripple and noise are less than 50mVpp. The output includes overload (constant current limiting) and short-circuit protection with automatic recovery. An LED indicates output OK.

Integration with F-Series

This power supply module is designed to be mounted to the left of the F-series CPU, connecting directly to the system backplane. It supplies power to the CPU and up to 7 I/O modules via the internal bus. Additional external 24V may be needed for heavy output loads, but the F880-CR-PS provides the logic supply for all modules.

Mechanical Design

The unit is housed in a rugged plastic case with dimensions 90mm (H) x 70mm (W) x 60mm (D). It snaps onto 35mm DIN rail and can be installed in any orientation. Terminals are push-in spring clamp type for solid or stranded wires up to 2.5mm². The enclosure provides IP20 protection.

Environmental and Safety

Operating temperature range is -20°C to +55°C with derating above 50°C. It meets safety standards UL 508, IEC 61010-1, and EN 61131-2. It also complies with EMC emission and immunity standards for industrial environments (EN 61000-6-2, EN 61000-6-4).

Applications

As part of the F-series PLC system, this power supply is used in machine control, building automation, packaging lines, and material handling. It ensures stable DC power for the controller, ensuring reliable operation even under fluctuating AC mains.