This is a Wärtsilä ESM-20 Engine Protection Module, an electronic safety device designed to monitor and protect marine auxiliary engines.
- Engine Safety Control: Acts as a centralized control unit that continuously monitors critical parameters like RPM, oil pressure, and temperatures.
- Shutdown Protection: Automatically triggers an immediate engine shutdown by cutting the fuel supply if it detects dangerous conditions such as overspeed or low lube oil pressure.
- Monitoring Channels: Features multiple input channels for external shutdowns, manual stop switches, and temperature/pressure sensors (as labeled on the module’s faceplate).
- Alarm Management: Includes visual indicators for various faults and shutdown alarms that can be reset once the condition is cleared.
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