PW481-50 | Yokogawa 100-120V AC Power Supply Module

PW481-50 | Yokogawa 100-120V AC Power Supply Module

The PW481-50 is a Yokogawa power supply module for 100-120V AC input. It delivers stable DC power to field instruments and control systems. This module supports 50/60 Hz frequency with ±3 Hz tolerance. It uses an exclusive connector for I/O interfacing.

• Brand: Yokogawa
• Model: PW481-50
• Type: Power Supply Module
• Input Voltage: 100~120 V AC ±10%
• Frequency: 50/60 Hz ±3 Hz
• Max Power Consumption: 200 VA
• Weight: Approx. 1 kg
• Interface: Exclusive connector

Product Description

• Compact PW481-50 for Yokogawa systems
• Accepts 100-120V AC input with ±10% variation
• Handles 50/60 Hz line frequency automatically
• Provides 200 VA max power for connected loads
• Uses dedicated connector for secure wiring
• Standard module without explosion protection (Module5)
• Basic type (0 suffix) for general industrial use

Technical Specifications

• Input Voltage Range: 90~132 V AC (100-120V ±10%)
• Frequency Response: 47~63 Hz (50/60 Hz ±3 Hz)
• Power Rating: 200 VA maximum consumption
• Efficiency: Typical >85% at full load
• Ripple & Noise: ≤2% peak-to-peak (rated load)
• Temperature Range: -10°C to +55°C (operating)
• Storage Temperature: -20°C to +70°C
• Humidity: 10% to 90% RH (non-condensing)
• Isolation: Input to output: 1500 V AC for 1 min
• Protection: Overcurrent, overvoltage, short-circuit

Installation Guide

• Mount on DIN rail or backplate (4 screws)
• Connect L, N, and ground terminals properly
• Use exclusive connector for I/O wiring
• Ensure adequate ventilation around module
• Keep cable length under 3m for output side

Commissioning & Maintenance

• Check input voltage before power-on
• LED indicator shows power status (green = OK)
• Perform load test with nominal current
• Clean air vents annually to avoid overheating
• Replace internal fuse only with specified type

Compatibility

• Compatible with Yokogawa CENTUM series
• Fits Yokogawa ProSafe-RS safety systems
• Works with Yokogawa DCS and PLC racks
• Replaces older PW481-10, PW481-20 models
• Not compatible with 120V AC only systems (use PW482)

Certifications

• CE mark (EN 61010-1)
• UL 508 listed
• CSA C22.2 No. 14
• RoHS compliant
• Designed per IEC 61131-2

Package Contents

• 1 x PW481-50 Power Supply Module
• 1 x Exclusive I/O connector (male)
• 1 x Mounting hardware kit
• 1 x Quick start guide (English)

Warranty & Shipping

• 12-month warranty against material defects
• Ships within 24 hours from order confirmation
• Carriers: FedEx, UPS, DHL with tracking
• Global delivery with insurance coverage

Typical Applications

• Powering Yokogawa field transmitters (pressure, temp)
• Supplying DCS remote I/O racks
• Driving solenoid valves and small actuators
• Backup power for control room indicators

Diagnostic Capabilities

• LED for input power present
• LED for output voltage OK
• Alarm relay contact for failure notification
• Self-recovery overload protection

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spares
• Global logistics – ship to over 60 countries
• Every module tested before dispatch
• 12-month warranty for peace of mind
• Support for obsolete control systems
• Refurbished options with new-component guarantee

Frequently Asked Questions

• Q: Can I use PW481-50 with 220V AC?
  A: No. This module accepts only 100-120V AC. Use PW482 for 220V.
• Q: Is this module explosion-proof?
  A: No. It is standard type (Module5) without explosion protection.
• Q: What is the output voltage?
  A: The output is 5V DC or 24V DC depending on system configuration (refer to manual).
• Q: How do I know if it’s working?
  A: Green LED on front panel indicates normal operation.
• Q: Can I replace a PW481-10 with this?
  A: Yes, PW481-50 is the direct replacement for older variants.

For inquiries, contact us:
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

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