Yokogawa SPW482-11 Power Supply Module 100-240VAC
Manufacturer: Yokogawa
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Part Number: SPW482-11
Condition：New with Original Package
Product Type: Industrial AC/DC Power
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Yokogawa SPW482-11 serves as the high-availability power foundation for Yokogawa’s ProSafe-RS safety instrumented systems and CENTUM VP distributed control networks. This module converts wide-range AC utility power into a regulated 24V DC rail, sustaining the operation of safety CPUs, I/O modules, and critical communication interfaces. We supply this unit as 100% Brand New and Original, ensuring your facility meets the stringent "continuous uptime" requirements of safety-critical applications in oil, gas, and petrochemical sectors.
Part Number Breakdown: SPW482 Series
Yokogawa identifies specific hardware environmental and voltage ratings through suffix codes:
| Suffix | Description | Application Context |
| -1 | Type | Standard 100-240V AC wide-range input version. |
| 1 | Environmental | Standard industrial protection for temperature and humidity. |
| S1 | Style Code | Represents the proven Style S1 hardware revision for NFBU racks. |
Technical Specifications
The SPW482-11 delivers 150W of regulated power with built-in surge and fault protection:
| Item | Specification |
| Input Voltage | 100 – 240 V AC (Wide Range), 50/60 Hz |
| Output Voltage | 24 V DC (Regulated) |
| Output Power | ~150 W (Typical) |
| Redundancy | Supports dual-power redundant configuration |
| Diagnostics | Status LEDs, Fault Detection, RAS Monitoring |
| Cooling Method | Passive Natural Convection |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | –40 °C to +85 °C |
| Dimensions | 50 × 130 × 150 mm |
| Weight / Shipping Weight | 0.8 kg / 2.0 kg |
Engineering Advantages
The SPW482-11 solves the mechanical and electrical challenges of high-demand safety environments:
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Fail-Safe Redundant Support: The module integrates seamlessly into NFBU series racks in dual-supply configurations. If one power unit fails, the secondary module carries the full system load instantly without causing a safety trip or CPU reset, maintaining the integrity of your Safety Instrumented Functions (SIF).
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Live System Maintenance: The hot-swappable design allows engineers to replace a power module while the system remains under power. This capability eliminates the need for process shutdowns during power supply maintenance, a critical feature for continuous process industries.
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Aggressive EMI Rejection: Safety systems often reside near high-voltage switchgear. The SPW482-11 filters electromagnetic interference and line noise, providing a "clean" 24V DC rail that prevents signal jitter and ensures accurate analog-to-digital conversions for field sensors.
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Fanless Thermal Management: By utilizing passive convection cooling, the module removes the risk associated with mechanical fan failure. This fanless architecture prevents the accumulation of conductive dust and corrosive contaminants inside the module, significantly extending the hardware's MTBF (Mean Time Between Failures).
FAQs
Q: Can I use the SPW482-11 to replace an older SPW482-13?
A: Yes. The SPW482-11 and SPW482-13 share the same physical footprint and electrical ratings for the 100-240V AC range. The suffix variation typically denotes minor revision changes or specific environmental certifications that do not affect basic compatibility within NFBU racks.
Q: Does this module require manual voltage selection for 110V or 220V?
A: No. The SPW482-11 features an auto-ranging input stage. It automatically accepts and regulates any AC input between 100V and 240V, making it a universal spare part for global facilities.
Q: How does the ProSafe-RS system monitor the health of this power supply?
A: The module communicates its status through the rack's backplane. The system's RAS (Reliability, Availability, and Serviceability) functions track power health in real-time. If a voltage drop occurs, the operator receives an immediate alarm on the Human Interface Station (HIS).
Q: Is the 150W output enough for a fully loaded safety rack?
A: Yes. Yokogawa engineers the SPW482-11 to provide sufficient current for a completely populated NFBU rack, including high-consumption digital output cards and communication modules, with a comfortable safety margin.