Description
YOKOGAWA SPW481-53 Power Supply Module
The YOKOGAWA SPW481-53 is a high-reliability power supply module designed for industrial automation systems, delivering stable AC-to-DC power conversion for control equipment, data collectors, and field instruments. As part of Yokogawa’s OPREX measurement and automation portfolio, the SPW481-53 ensures consistent performance in harsh environments, making it ideal for critical applications in manufacturing, energy, and process control.
1. Product Description
The YOKOGAWA SPW481-53 is a standard power supply module (non-explosion-proof) engineered to provide regulated DC power for Yokogawa’s automation systems. It converts 100–120 V AC input (50/60 Hz) into a stable DC output, supporting devices such as PLCs, I/O modules, and field sensors. Key features include overload, overvoltage, and short-circuit protection, ensuring system safety. With a compact design (5.1 cm × 20.3 cm × 14.6 cm) and lightweight construction (0.9 kg), the SPW481-53 integrates seamlessly into industrial setups. Its wide operating temperature range (-20°C to 70°C) and compliance with ISA G3 environmental standards make it suitable for dusty or corrosive environments.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Input Voltage | 100–120 V AC, 50/60 Hz |
| Output Voltage | Regulated DC (specific rating not listed; consult datasheet) |
| Output Current | Up to 7 A (per manufacturer guidelines) |
| Protection Features | Overload, overvoltage, short-circuit |
| Operating Temperature | -20°C to 70°C |
| Environmental Compliance | ISA G3 (dusty/corrosive environments) |
| Dimensions | 5.1 cm × 20.3 cm × 14.6 cm (W × H × D) |
| Weight | 0.9 kg |
| Warranty | 1 year (new units) |
YOKOGAWA SPW481-53
3. Advantages and Features
- Reliable Power Conversion: High-efficiency AC-to-DC conversion minimizes energy loss and ensures stable operation.
- Robust Protection: Built-in safeguards prevent damage from electrical faults, enhancing system longevity.
- Wide Environmental Range: Operates in extreme temperatures and harsh conditions (ISA G3), reducing downtime.
- Compact Design: Space-saving form factor suitable for modular automation setups.
- Dual Redundancy Support: Compatible with redundant terminal blocks for critical applications (via optional adapters).
4. Application Fields and Cases
- Industries: Manufacturing, energy, water treatment, and process control.
- Scenarios: Powering PLCs, I/O modules, data acquisition systems, and field sensors in industrial plants.
- Case Study: A manufacturing facility in Southeast Asia uses the YOKOGAWA SPW481-53 to power its assembly line PLCs. The module’s stable output and fault protection reduced downtime by 20%, improving production efficiency.
5. Competitive Comparison
Compared to similar power supply modules, the SPW481-53 stands out with:
- Wide Voltage Range: Supports 100–120 V AC input, accommodating diverse regional power grids.
- Enhanced Environmental Tolerance: Meets ISA G3 standards, outperforming 竞品 with narrower temperature ranges.
- Integrated Protection: Built-in safeguards eliminate the need for external relays, reducing installation costs.
YOKOGAWA SPW481-53
6. Selection Recommendations
- Voltage Compatibility: Ensure input voltage matches local power supply (100–120 V AC).
- Current Requirements: Verify output current capacity (7 A) meets device load demands.
- Environment: Use in ISA G3-compliant environments (dusty, corrosive).
- Redundancy: Pair with dual terminal blocks for fault-tolerant systems.
7. Precautions
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Wiring: Separate power (PLC/I/O) and signal lines; use shielded twisted pairs for analog signals.
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Grounding: Ensure proper grounding of the module and shielding layers to reduce noise.
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Maintenance: Replace backup batteries (if applicable) every 3 years (30°C average temperature).
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Installation: Follow Yokogawa’s guidelines for terminal block or MIL connector cabling.
