ABB 3BHE025541R0101 PCD231B Communications I/O Module

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sales3@mooreplc.com

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Model Information

3BHE025541R0101 PCD231B is a compact ABB UNITROL excitation-control module that mounts on a DIN-rail and delivers precise field-current regulation for synchronous generators and motors. It runs on 24 Vdc, works –25 °C to +70 °C, measures only 115 × 65 × 30 mm, and talks Modbus, IEC 61850 and DNP3—so you can bolt it into the exciter cabinet, wire the CT/PT signals, and have voltage stability, limit protection and diagnostics straight out of the box.

Industrial Automation Experts

Our team has extensive experience working with a wide range of automation systems and brands. We support customers in identifying compatible parts, understanding product specifications, and selecting replacements for obsolete modules. With access to technical documents and a broad component database, we provide reliable guidance to help keep your systems operating efficiently.

End-to-End Supply Service

Moore Automation offers a complete supply solution—from sourcing and inventory management to order fulfillment and after-sales support. We provide genuine, original components with a 12-month warranty and make technical datasheets available upon request. Whether you need a single replacement item or ongoing supply for your equipment, we deliver a practical, dependable service from start to finish.

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