PW402 S2 | YOKOGAWA | Power Supply Module

Product Description

The Yokogawa PW402 S2, based on the PW402 power supply model designation, is specified as an AC-input, DC-output power supply for industrial control equipment. It converts incoming AC power into a DC supply for connected hardware. The electrical ratings and mechanical interface must be verified against the manufacturer's documentation before installation.

Hardware Specifications

DC Power Distribution and Load Verification

A power supply must maintain its output within the voltage limits required by the connected control equipment. Before connecting a PW402 S2, verify the rated input, output voltage, maximum output current and terminal assignments using the applicable Yokogawa documentation.

The supplied ratings of 24 VDC and 8.5 A correspond to a calculated output capacity of 204 W, rather than 200 W. Confirm the manufacturer's actual rated output before using these figures for load calculations. Do not assume that the module supports redundant operation, hot swapping or a particular backplane interface without documentation.

Frequently Asked Questions

Q: Can the PW402 S2 be used with a 24 VDC control circuit?

A: The supplied description lists a 24 VDC output. Confirm the nameplate and manufacturer documentation before connecting the module to a control circuit.

Q: Does the PW402 S2 support hot swapping or redundant power operation?

A: These capabilities are not established by the supplied information. Verify the supported configuration and replacement procedure for the specific control system.

Q: How should the required power capacity be calculated?

A: Sum the DC current requirements of all connected loads at the specified output voltage. Allow for startup demand and operating conditions, and ensure that the total remains within the manufacturer's rated output limits.

Field Installation Guidelines

1. Verify the complete model designation and electrical ratings against the module nameplate and applicable manufacturer documentation.
2. Isolate the input supply before wiring or removing the unit. Follow the site's electrical safety and lockout procedures.
3. Confirm the input and output terminal assignments before applying power. Do not infer terminal polarity or pin assignments from the model number.
4. Check the mounting method, enclosure requirements and available ventilation against the manufacturer's installation instructions.
5. Route power wiring separately from low-level analog signals and communication cables where practical. Follow the applicable grounding, shielding and cable-separation requirements.
6. Inspect the wiring and connected load before energizing the supply. Measure the output voltage and confirm that it meets the connected equipment's requirements.
7. Do not install or remove the module under power unless the manufacturer explicitly permits that procedure.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

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