



Introduction
The Yokogawa SPW481‑13 Power Supply Module is a high‑performance industrial DC power source designed to deliver stable and efficient power for Yokogawa distributed control systems (DCS) and automation equipment. Engineered for reliability in demanding plant environments, this module supplies regulated 24 V DC output with robust protections to ensure continuous operation of controllers, I/O units, sensors, and actuators. Its rugged construction, compact size, and versatile mounting options make the SPW481‑13 an excellent choice for control cabinets, field racks, and critical automation applications across process, energy, and manufacturing industries.
Technical Specifications
| Specification | Description |
|---|
| Model | SPW481‑13 Power Supply Module |
| Module Type | Industrial Power Supply |
| Input Voltage | 100–120 VAC, 50/60 Hz |
| Output Voltage | 24 V DC regulated |
| Output Current | Up to 5 A |
| Maximum Output Power | ~120 W |
| Protection Features | Overvoltage, overcurrent, short‑circuit |
| Mounting | DIN‑rail or panel mount compatible |
| Housing Material | Industrial‑grade metal |
| Operating Temperature | −20 °C to +60 °C |
| Storage Temperature | −40 °C to +85 °C |
| Dimensions (WxHxD) | Approx. 90 × 160 × 115 mm |
| Weight | Approx. 1.5 kg |
| Certifications | CE, UL, RoHS compliant |
Applications
The SPW481‑13 Power Supply Module is ideal for use in industrial systems that require continuous, regulated DC power:
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Distributed Control Systems (DCS) in process industries
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Control cabinets and field enclosures powering controllers and I/O modules
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Automation applications in chemical, petrochemical, and energy facilities
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Water/wastewater treatment system control networks
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Manufacturing and production process automation
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Field I/O power distribution systems
By providing stable voltage and comprehensive protection, this module supports reliable operation and reduces unplanned downtime.
Advantages
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Consistent Power Output — Delivers stable regulated 24 V DC under varying load conditions.
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Built‑In Protection — Integrates safeguards against overcurrent, overvoltage, and short circuits.
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Durable Construction — Robust industrial housing withstands temperature variation and vibration.
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Flexible Mounting — Supports both DIN‑rail and panel installation for versatile placement.
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Space‑Efficient Design — Compact footprint fits easily into control cabinets and racks.
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Seamless Integration — Fully compatible with Yokogawa automation platforms and devices.
These features help ensure system availability, reduce maintenance complexity, and improve overall automation stability.