English
The Yokogawa PW401 S2 is a power supply module associated with Yokogawa CENTUM control-system hardware. For maintenance and replacement planning, the complete model and style marking must be checked together with the installed host, input supply and connector arrangement.
This guide summarizes the documented electrical and physical data for PW401 S2 and the practical checks that should be completed before a replacement is approved.
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FUNCTIONAL ROLE
CENTUM system power supply
PW401 S2 provides the documented power-supply function for compatible CENTUM hardware. The receiving unit, rack position and complete installed configuration must be verified from the project record.
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EXACT HARDWARE IDENTITY
PW401 S2
Manufacturer: Yokogawa
Product type: Power Supply Module
System family: CENTUM
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INPUT
100–120 V AC
4 A · 50/60 Hz
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OUTPUT
5.1 V DC
20 A · 102 W
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DIMENSIONS
51 × 203 × 203 mm
Three fixing screws
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WEIGHT
Approx. 1.54 kg
Allow ≥10 mm cable clearance
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01 · IDENTIFY
Capture every label
Record PW401 S2, all revision marks, host-unit identity and the installed position.
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02 · COMPARE
Check power and fit
Confirm the 100–120 V AC supply record, connector layout, mounting and cable clearance.
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03 · COMMISSION
Restore methodically
Follow the approved maintenance procedure, review power status and alarms, then confirm normal communication.
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YOKOGAWA · PW401 S2 SUPPORT
Verify the exact module before quotation
Send the full model, quantity, required condition, destination and clear label photos for an availability and compatibility review.
View PW401 S2 Product Details →
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Technical reference: documented PW401 S2 product data. Installation and commissioning must follow the latest approved Yokogawa and site documentation.
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