PW401
PW401
PW401
PW401
PW401
PW401
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PW401

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Yokogawa PW401 is a power supply module whose confirmed nameplate specifies 100–120 V AC input and a +5.1 V DC, 20 A, 102 W output.
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Technical specifications for PW401

  • Manufacturer:
    Yokogawa
  • Part Number:
    PW401
  • Product Family:
    Centum CS-Centum VP
  • Product Type:
    Power Supply Module
  • Stock:
    1
  • Input voltage:
    100–120 V AC
  • Input frequency:
    50/60 Hz
  • Input current:
    4.0 A
  • Output voltage:
    +5.1 V DC
  • Output current:
    20 A
  • Output power:
    102 W
  • Confirmed manufacturing origin:
    Singapore
  • Weight:
    1.56 kg
  • Estimated shipping dimensions:
    5 x 23 x 20 cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    Singapore
  • 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 AC Input Boundary DC Load Check Nameplate Acceptance Product Applications

Features:

  • Confirmed AC input: 100–120 V AC at 50/60 Hz and 4.0 A
  • Defined DC output: +5.1 V at 20 A with a 102 W rating
  • Traceable origin: the physical product label states Made in Singapore
PW401 converts the documented 100–120 V AC source into the high-current +5.1 V DC rail identified on its nameplate.

The 102 W output rating provides a direct boundary for assessing the host load before a replacement is energized.

Country-of-origin information comes from the exact physical label, while system compatibility still depends on the installed cabinet and connections.
Apter Power can review the confirmed PW401 nameplate, electrical ratings, connection evidence, condition, and quotation scope.
Yokogawa PW401 Power Supply Module Manuals,Datasheets,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.
  • Nominal range: the label states 100–120 V AC.
  • Frequency: the permitted mains frequency is 50/60 Hz.
  • Input current: the marked value is 4.0 A.
  • Energization gate: keep the module isolated when the cabinet source differs.
  • Output level: the supply is marked +5.1 V DC.
  • Current capacity: the label states 20 A.
  • Power rating: the marked output is 102 W.
  • Load decision: compare the installed rail demand before startup.
  • Model identity: the exact label reads PW401.
  • Origin evidence: the same label states Made in Singapore.
  • Receiving control: match ratings and connector arrangement with the removed unit.
  • Legacy Yokogawa cabinet power: supply the documented +5.1 V DC rail.
  • Maintenance replacement: match a removed unit by electrical label and connector evidence.
  • Bench acceptance: verify source and load boundaries before cabinet installation.
Description
The confirmed unit label rates PW401 for 100–120 V AC, 50/60 Hz, 4.0 A input and +5.1 V DC, 20 A, 102 W output.

Together, those input and output ratings give PW401 a specific electrical identity for cabinet service; host applicability must follow the exact installed label and Yokogawa cabinet documentation, not similarity to another PW-series supply.
Alternative Names
Yokogawa PW 401 PW401 power supply unit Yokogawa 5.1 V power module CENTUM legacy power supply
Technical notes
Input-voltage mismatch is the immediate risk for PW401. The confirmed nameplate requires 100–120 V AC at 50/60 Hz and 4.0 A, while the output is +5.1 V DC, 20 A, 102 W. Keep the unit de-energized until the cabinet source, connector mapping, and downstream load agree with those ratings.
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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.
Can PW401 be connected to a 200–240 V AC cabinet source?
No. The confirmed label specifies 100–120 V AC at 50/60 Hz. Keep the module isolated unless the incoming source falls within that documented range.
What load boundary should be checked before installing PW401?
The nameplate states +5.1 V DC, 20 A, and 102 W. Compare the host rail voltage, expected current, and connector mapping before energizing the replacement.
Can PW401 be replaced by PW404 S1 based on the PW prefix alone?
No official interchangeability evidence has been established. Treat the two complete models as different supplies until Yokogawa system documentation confirms the host, ratings, and connection requirements.
What does a different rating label mean when receiving PW401?
It means the delivered unit does not match the confirmed electrical identity for this page. Hold acceptance and resolve the discrepancy before the part reaches the cabinet.
Which origin should purchasing record for PW401?
Record Singapore, because the confirmed physical product label states Made in Singapore. Keep the label image in the internal receiving file even though it is not published on the page.