Description
PW484 – YOKOGAWA ProSafe-RS DCS Power Supply Module
Product Overview
The YOKOGAWA PW484 is an original industrial-grade DC power supply module designed for Yokogawa ProSafe-RS safety instrumented systems and CENTUM VP DCS platforms. As a core rack power supply unit, this module converts stable 24VDC input power into isolated, regulated power for on-site I/O modules, processor units and communication cards. Adopting industrial anti-surge circuit design and conformal coating protection, the PW484 delivers ultra-stable power output with low ripple and high efficiency. It effectively eliminates voltage drift, instantaneous surge and power instability issues in harsh factory environments, ensuring continuous, uninterrupted power supply for safety-level process control systems and guaranteeing long-term 24/7 stable operation of petrochemical and thermal power automation equipment.
Technical Specifications
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Brand: YOKOGAWA (Japan)
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Model: PW484
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Warranty: One Year
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Condition: 100% New & Original
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Product Type: DCS & SIS System DC Power Supply Module
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Input Voltage: Standard 24 VDC industrial DC input power
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Compatible Series: ProSafe-RS SIS System, CENTUM VP DCS System
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Optional Suffix: PW484-50 / PW484-51 standard upgraded versions
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Environmental Grade: ISA G3 industrial environment adaptation standard
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Operating Temp: -20℃ to +70℃ wide industrial temperature range
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Protection Design: Built-in over-current, over-voltage, short-circuit and over-temperature protection
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Stability Performance: Low ripple output, strong anti-interference, no voltage fluctuation under load variation
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Surface Treatment: Factory conformal coating for dust, moisture and corrosive gas resistance
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Mounting Method: Standard DCS rack card slot installation, plug-and-play replacement
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Redundancy Support: Supports dual redundant power configuration to avoid system power failure shutdown
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Certification Standard: Meets industrial safety and process control equipment certification requirements
Application Scenarios
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Petrochemical SIS Safety Instrumented Systems: The YOKOGAWA PW484 is widely deployed in ProSafe-RS safety control racks of petrochemical plants. It provides highly reliable isolated power for safety interlock modules and emergency shutdown units, ensuring the safety system can respond normally under any power fluctuation conditions and avoiding production safety risks caused by power supply anomalies.
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Thermal Power Plant DCS Control Systems: Applied in CENTUM VP DCS system power supply units of thermal power generation units. It stably supplies power to core control modules and field signal acquisition units, guarantees accurate collection and stable transmission of boiler, turbine and generator parameters, and supports safe and efficient operation of power generation equipment.
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Process Industrial Continuous Production Lines: Suitable for chemical, pharmaceutical, oil and gas and other high-reliability process industries. With wide temperature adaptation, complete protection mechanism and redundant configuration support, it adapts to harsh industrial environments, reduces system failure rate, and ensures continuous and stable operation of automated process production systems.
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