Yokogawa SPW481-13 Power Module

Feature & Principle

It is a dedicated power module for Yokogawa ProSafe-RS safety instrumented system. It converts AC mains into stable isolated DC power to supply safety controllers and I/O modules. Built-in overvoltage, overcurrent and short-circuit protection. With ISA G3 anti-corrosive coating, it adapts to harsh industrial environments. It supports hot swap and power status diagnosis, provides power-fail alarm signal to avoid unexpected safety trip caused by power abnormality.

Specifications

Model: SPW481-13 Brand: Yokogawa Applicable system: ProSafe-RS SIS Input: 100~240VAC, 50/60Hz Output: Regulated DC Environmental grade: ISA G3 Mounting: Rack plug-in Protection: OVP, OCP, short circuit Safety standard: IEC61508 Application: Petrochemical, chemical, power plant safety control cabinet Certification: CE, IEC

Components & Diagnostics

Main power PCB, isolation transformer, output rectifier circuit, status LED indicators, backplane connector. Common faults: no output, power fault alarm, unstable voltage, connector poor contact.

Product Brief

SPW481-13 safety power supply module, Yokogawa ProSafe-RS SIS spare widely used for safety instrument cabinet overhaul and replacement.