Description
The YOKOGAWA SPW484-E3-S1 is a high-reliability Power Supply Module specifically engineered for the ProSafe-RS Safety Instrumented System (SIS). It plays a foundational role in ensuring the continuous and stable operation of safety controllers in critical industrial processes. Designed for high availability, this module converts primary power into the regulated voltage required by ProSafe-RS control modules, ensuring that safety functions remain active even under demanding electrical conditions.

Technical Specifications
| Specification | Details |
| Brand | YOKOGAWA |
| Model | SPW484-E3-S1 |
| Function | Power supply / Power distribution |
| Compatibility | YOKOGAWA ProSafe-RS series |
| Voltage Input | Standard industrial DC supply ranges |
| Safety Integrity | Designed for SIL 3 safety environments |
| Product Color | Industrial Gray / Yokogawa Standard |
| Hot-Swappable | Yes (Designed for redundant, live replacement) |
Product Features
- 🛡️ SIL 3 Reliability: Built to the highest standards for safety-critical applications, ensuring that power delivery remains stable to prevent false trips or system loss.
- ⚡ Redundancy Support: Engineered to work in redundant configurations, allowing for seamless failover if one power module experiences a fault.
- 🔄 Hot-Swappability: Supports online maintenance, enabling field technicians to replace a faulty unit without interrupting the safety system’s operation.
- ⚙️ Robust Protection: Includes internal protections against overvoltage, overcurrent, and thermal stress, shielding the sensitive control electronics from power grid anomalies.
- 🌐 Seamless Integration: Designed specifically for the ProSafe-RS backplane architecture, ensuring plug-and-play installation and reliable communication with the system’s diagnostic layers.
Recommended Similar Models (ProSafe-RS Power Series)
- SPW482 (Power Supply Module)
- SPW484-S1 (Alternative version)
- SPW486 (High-capacity power module)
- SB401 (System Bus Cable)
- SCB100 (Control Bus Module)
- SCS (Safety Control Station core components)
- SHC100 (Hardwired I/O Module)
- SNB10D (Node Bus Module)
- SPR100 (Power distribution unit)
- SPP24S (Power supply unit)
For technical datasheets, installation manuals, or to check availability for this YOKOGAWA SPW484-E3-S1 Power Module, please visit our product catalog for professional industrial support.

