Ask our team:
  • Phone: +86 181 0690 9650
  • E-Mail sales1@apterpower.com
  • Lifecycle status

    Active / Available from OEM
    Apter Power provides authentic Yokogawa electrical hardware to prevent unexpected production line downtime.

PW481-50

/ 4.9
1001 reviews | Need a Specific Revision?
The Yokogawa PW481-50 is a 100-120V AC power supply module for Field Control Units, offering 200 VA max consumption and dual-redundant configuration support.
In Stock
Ships by Thursday, October 29
Fast Shipping Available
Get a quick price for PW481-50
Quantity
*E-mail
Company
*Mobile
*Content
Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)

Technical specifications for PW481-50

  • Manufacturer:
    Yokogawa
  • Part Number:
    PW481-50
  • Product Family:
    Centum CS-Centum VP
  • Product Type:
    Power Supply Module
  • Stock:
    32
  • Input Voltage:
    100-120V AC ±10%
  • Input Frequency:
    50/60 Hz ±3 Hz
  • Maximum Power Consumption:
    200 VA
  • Input/Output Interface:
    Exclusive connector
  • Installation Slots:
    P1-P2 (FCU, FIO Node, Optical ESB Bus Repeater)
  • Redundancy Support:
    Dual-redundant (2 identical modules)
  • Single Configuration:
    Module must be installed in slot P1
  • Temperature Range (Option 1):
    -20°C to 70°C (with ISA G3 option)
  • Estimated shipping dimensions:
    5x14.9x19.9cm
  • Tariff Code:
    8504401500
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Diagnostics & Protection Installation & Upgrades

Features:

  • Provides 200 VA power for Yokogawa DCS field control units.
  • Enables high-availability systems with two identical modules.
  • Supports -20°C to 70°C operation with ISA Standard G3 option.
The PW481-50 is engineered to convert 100-120V AC input power into stable DC power for Yokogawa CENTUM VP DCS systems. With maximum power consumption of 200 VA and input frequency tolerance of 50/60 Hz ±3 Hz, the PW481-50 delivers consistent performance even under fluctuating grid conditions. The exclusive connector interface ensures secure and reliable connections. This robust power conversion capability makes the PW481-50 ideal for critical industrial applications where uninterrupted power supply is essential for maintaining process control and system availability.

The PW481-50 supports both single and dual-redundant configurations to meet varying system reliability requirements. In single configuration, the PW481-50 must be installed in slot P1. For critical applications requiring maximum uptime, two identical PW481-50 modules can be installed in slots P1 and P2 for dual-redundant power supply. This architecture ensures that if one module fails, the other continues to provide power, eliminating single points of failure and significantly enhancing system availability for continuous process operations.

The PW481-50 is available with multiple suffix code options to suit diverse installation environments. The -5 suffix provides standard type without explosion protection, while the -E suffix offers explosion protection for hazardous areas. The -1 suffix includes ISA Standard G3 option with extended temperature range from -20°C to 70°C, making the PW481-50 suitable for harsh industrial environments. Installation restrictions require the PW481-50 to be installed in specified slots P1-P2 of compatible units including FCU, FIO Node Units, and Optical ESB Bus Repeater Units.

The PW481-50 YOKOGAWA Power Supply Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

YOKOGAWA PW481-50 Power Supply Module Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.;
YOKOGAWA PW481-50 Power Supply Module Specs

General

  • Manufacturer YOKOGAWA
  • Model PW481-50
  • Condition New Original ready stock
  • Product Family PW482-10 S2,PW482-11 S2,PW482-50 S2
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Petroleum Refining & Petrochemicals: Supplies power to Field Control Units (FCUs) managing volatile distillation columns, cracking reactors, and tank farm telemetry loops.
  • Thermal & Nuclear Power Generation: Serves as the base power component in turbine governing networks, boiler combustion control systems, and generator status monitors.
  • LNG Facilities & Gas Processing: Deployed in LNG liquefaction plants, storage hubs, and offshore platforms to run local I/O nodes and ESD (Emergency Shutdown) data interfaces.
  • Overvoltage & Overcurrent Safeguards: Built-in internal circuitry suppresses sudden electrical surges on the main utility grid, protecting delicate backplane microchips.
  • Load-Sharing Redundancy Monitoring: When paired in a dual-redundant configuration (occupying slots P1 and P2), the module continuously balances current draw. If one power unit drops its output, the sister module instantaneously shoulders the full load without interrupting production.
  • GREEN LED (PWR): The input line voltage and output internal Rails (5.1 V DC / 24 V DC) are working perfectly.
  • Slot Mapping: The module must only be inserted into the dedicated power supply slots (labeled P1 and P2) located on the far left of compatible CENTUM racks (such as AFV30D, ANB10D, or ANB11D).
  • Screw Tightening Torque: Secure the retaining screws tightly into the metal chassis framework to ensure solid structural ground paths and minimize physical vibration strain.
  • Online Hot-Swappable: If one half of a dual-redundant power setup (e.g., P1) fails, it can be physically unplugged and replaced while the plant is live (hot-swapped). The partner module (P2) will maintain full loop power, preventing system downtime.
  • Redundancy Model Matching: While the PW481-50 is designed as a direct replacement for the older PW481-10 module, Yokogawa explicitly prohibits mixing "-10" and "-50" modules side-by-side in the same redundant pair.
Description
The Yokogawa PW481-50 is a high-performance power supply module designed for Yokogawa CENTUM VP DCS systems. This module provides reliable 100-120V AC power conversion for Field Control Units (FCU), FIO Node Units, and Optical ESB Bus Repeater Units.

With an input voltage range of 100-120V AC ±10% at 50/60 Hz ±3 Hz, the Yokogawa PW481-50 delivers maximum power consumption of 200 VA. Weighing approximately 1.0 kg, the PW481-50 features an exclusive connector interface for secure installation.

The Yokogawa PW481-50 supports both single and dual-redundant configurations. For single configuration, the PW481-50 must be installed in slot P1. For dual redundancy, two identical PW481-50 modules can be installed in slots P1 and P2.

The Yokogawa PW481-50 is available with suffix code -50 options including standard type with no explosion protection (5), explosion protection (E), basic type (0), and ISA Standard G3 option with extended temperature range (-20°C to 70°C) (1). The PW481-50 is an exclusive module for Yokogawa DCS systems and cannot be used as a generic power supply.
Alternative Names
PW481-5O PW48I-50 PW481 50 PW481-10 S2 PW481-50 S2 PW481-50 S2 SPW481-13 S1 PW482-S01
Technical notes
The Yokogawa PW481-50 is a 100-120V AC power supply module for Yokogawa DCS systems. It provides 200 VA max power, and supports dual-redundant configurations. Exclusive to FCU, FIO Node, and Optical ESB Bus Repeater Units. Available with explosion protection and extended temperature options.
Exceptional Service

Our Mission

  • 100% Satisfaction

    We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.
  • Trust Guaranteed

    Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.
  • Expertise

    Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary application of the PW481-50?
It powers Yokogawa Field Control Units, FIO Node Units, and Optical ESB Bus Repeater Units in CENTUM VP DCS.
What are the key specifications of the PW481-50?
It accepts 100-120V AC ±10%, 50/60 Hz, consumes max 200 VA.
How is redundancy configured with the PW481-50?
Two identical PW481-50 modules can be installed in slots P1 and P2 for dual-redundant power supply.
What compatible units support the PW481-50?
Compatible units include FCU (AFV series), FIO Node (ANB series), Optical ESB Bus Repeater (ANT10U), and base plates (A2BE series).

Product Browsing History