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In Stock
Ships by Sunday, July 19
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We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for PW401
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Product ModelPW401
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Product ParametersPower Supply Unit
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Tariff Code8537101190
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Country of originJAPAN
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size5x23x20cm
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ManufacturerYokogawa
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Weight1.5 kg
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Mounting19-inch rack mount
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Input Voltage100 to 120 V AC
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Input Frequency50/60 Hz
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Input Current4 A maximum
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Input Power400 VA typical
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Output Voltage5.1 V DC
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Output Current20 A maximum
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Output Power102 W
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Operating Temperature0°C to +50°C (32°F to 122°F)
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Storage Temperature-20°C to +70°C (-4°F to 158°F)
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Relative Humidity10% to 90%, non-condensing
Description
The Yokogawa PW401 is a Power Supply Unit designed specifically for Yokogawa distributed control systems, providing reliable and regulated DC power for digital logic circuits and I/O modules. The PW401 accepts an input voltage range of 100 to 120V AC at 50/60 Hz with a 4A input current, making it compatible with standard industrial power supplies across different regional standards.
The PW401 delivers a regulated output voltage of 5.1V DC with an output current capacity of 20A, providing a total power output of 102 watts. This high-current output capability of the PW401 enables it to power multiple I/O modules, processor cards, and communication interfaces within the control system simultaneously, ensuring stable operation of all connected components.
The PW401 delivers a regulated output voltage of 5.1V DC with an output current capacity of 20A, providing a total power output of 102 watts. This high-current output capability of the PW401 enables it to power multiple I/O modules, processor cards, and communication interfaces within the control system simultaneously, ensuring stable operation of all connected components.
Alternative Names
PW40I
PW4O1
PWA01
PW4OI
Information
Overview
Manuals
Application Notes
Product Applications
Cable Connection
Features:
- Wide Input Voltage Range (100–120V AC, 50/60 Hz)
- Regulated 5.1V DC Output for Digital Logic Systems
- High Output Current Capacity of 20A
- 102W Total Power Output
The PW401 accepts an input voltage of 100 to 120 V AC at 50/60 Hz with a maximum input current of 4 A. It delivers a regulated output of 5.1 V DC at up to 20 A, providing a total output power of 102 W. Output voltage regulation is maintained within ±2% across the full operating range, with load regulation of ±1%. Output ripple and noise are held below 50 mV peak-to-peak.
The PW401 Yokogawa Power Supply Unit may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Yokogawa PW401 Power Supply Unit 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.
The unit incorporates comprehensive protection features including electronic overcurrent limiting with automatic recovery, overvoltage protection that latches at 6.0 V DC, undervoltage alarm at 4.5 V DC, and integrated thermal shutdown to prevent damage from excessive operating temperatures. The input side is protected by a 5 A time-delay fuse rated at 250 V AC.
Front panel status indicators include a green POWER LED for input power presence, a green RUN LED for normal output voltage, and a red ALARM LED that illuminates during fault conditions such as overvoltage, undervoltage, overcurrent, or thermal overload.
- Oil & Gas: Powers safety and control modules in refineries
- Chemical Processing: Ensures uninterrupted DCS operation for critical reactions
- Power Generation: Supplies stable power to plant monitoring/automation systems
- General Automation: Used in factory panels, controls, and lab equipment requiring continuous DC power
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Power & Grounding: Connections are made via M4 or M6 screw terminals (depending on the specific revision) located on the terminal base.
Wiring: Strip the cable coating back to expose the wire. Insert the wires securely into the terminals and tighten the screws to the manufacturer's specified torque to prevent loose connections or arcing.
Compliance: All power cables and connections must strictly adhere to the Yokogawa Installation Guidance to ensure regulatory and safety compliance
Technical notes
The PW401 serves as a dedicated I/O power supply within Yokogawa control system architectures, with input specifications of 100–120V AC at 50/60 Hz and 4A, and output specifications of 5.1V DC at 20A. The PW401 is an essential component for maintaining system integrity in Yokogawa DCS installations, providing the stable low-voltage DC power required by modern digital control modules and ensuring consistent performance across the entire control network.
FAQs
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What is the PW401 ?
+The Yokogawa PW401 is a compact, industrial-grade power supply module specifically for mission-critical automation systems like the Yokogawa CENTUM CS, CENTUM VP, and ProSafe-RS series -
Does the module support dual redundant operation?
+Yes, the PW401 is built to support dual redundant operations. You can run two modules in parallel to provide uninterrupted power to your system if one module fails or is powered down. -
What are the input power requirements?
+The module accepts a standard single-phase AC input voltage range of 100–120 V AC at a frequency of 50/60 Hz, drawing an input current of 4 A -
What is the rated DC output?
+The primary version of the PW401 outputs a regulated 5.1 V DC with a maximum current capacity of 20 A, yielding a total power capacity of 102 W
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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