YOKOGAWA PW481-11 POWER SUPPLY

Description:

The Yokogawa PW481-11 Power Supply Module is used an industrial AC input power module designed for use in Yokogawa CENTUM and FIO/FCU distributed control systems. It converts 100–120 VAC input into regulated DC power for CPU, I/O, and communication modules, ensuring stable system operation. This module is part of the PW481 series and is engineered specifically for Yokogawa control architectures, not for standalone use.

Applications:

The Yokogawa PW481-11 is used in industrial environments to supply stable power to PLC and DCS control systems. It is commonly deployed in chemical processing, power generation, manufacturing, and process automation systems. The module ensures reliable operation of CPU, I/O, and communication modules, supporting continuous system uptime and stable plant operation.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: PW481-11
• Product Type: Power Supply Module (DCS/PLC)
• Input Voltage: 100–120 VAC ±10%, 50/60 Hz
• Output Voltage: ~24 VDC (system supply typical)
• Output Current: ~2.5 A
• Power Consumption: ~200 VA
• System Compatibility:
• Field Control Unit (FCU)
• FIO Node Unit
• Optical ESB Bus Repeater Unit
• Installation: Rack/base module (slots P1–P2)
• Redundancy: Supports dual-redundant configuration (install 2 modules)
• Function: Provides regulated internal system power
• Product Status: Active / replacement variant available

Common Replacements:

• Yokogawa PW481-50 (updated replacement version)
• Yokogawa PW482 (220–240VAC version)
• Yokogawa PW484 (24VDC version)