Description
Product Introduction
The Wärtsilä ESM-10 Engine Protection Module, part number EV 303123 A, is an engine safety and protection unit used in compatible marine diesel engine automation systems. The module is associated with Dr. E. Horn GmbH / Hornell and is designed to monitor critical engine conditions and support protective actions when configured limits are exceeded.
The ESM-10 is used in applications where engine safety functions must operate alongside the main engine control system. Depending on the installed configuration, its functions can include engine-speed monitoring, lubrication oil pressure supervision, temperature monitoring, and alarm or shutdown signaling.
This model is identified as an ESM-10 with a 4–20 mA analog configuration and Revision 6 in available product information. Confirm the complete nameplate details and engine-specific configuration before ordering.
Wartsila ESM-10
Key Features
- Engine Protection: Supports monitoring and protective functions in compatible engine automation systems.
- Marine Application: Intended for suitable Wärtsilä engine installations and related safety-control applications.
- Analog Signal Interface: The identified configuration uses 4–20 mA instrumentation signals.
- Safety Monitoring: Depending on the engine configuration, monitoring can include speed, oil pressure, and temperature-related conditions.
- Replacement Part: Suitable for evaluation as a replacement for an existing ESM-10 with matching part number, revision, and configuration.
- Configuration Verification: Engine-specific settings and wiring must be checked before installation.
Product Datasheet
| Parameter | Description |
|---|---|
| Brand | Wärtsilä |
| Model | ESM-10 |
| Part Number | EV 303123 A |
| Series | Engine Safety Module |
| Product Name | Engine Protection Module |
| Revision | Revision 6, to be confirmed against the item’s nameplate |
| Associated Manufacturer | Dr. E. Horn GmbH / Hornell |
| Analog Configuration | 4–20 mA, as identified for this version |
| Power Requirements | 24 V DC nominal; published operating range 18–32 V DC for the identified ESM-10 configuration |
| Place of Manufacture / Origin | Marked “Made in EC” in associated product documentation; confirm the individual unit |
| Product Status | Confirm actual condition with the seller |
| Dimensions | Verify against the installed unit |
| Weight | Not independently verified |
| Country of Origin | European Community marking reported; specific country not verified |
| Discontinued | ESM-10 has been superseded by the ESM-20 in Wärtsilä service documentation |
Installation and Compatibility Notes
- Check the complete part number: Confirm EV 303123 A, the revision, and the analog configuration against the original unit.
- Verify the engine application: Confirm compatibility with the engine model, serial number, and installed automation system.
- Review the wiring: Check the supply connections, sensor inputs, analog loops, and safety outputs against the correct wiring diagram.
- Do not assume ESM-20 interchangeability: Although the ESM-20 is a successor to the ESM-10, replacement may require wiring changes, signal adjustments, or other engine-specific modifications.
- Perform authorized commissioning: Engine safety modules should be installed and tested by qualified personnel using approved procedures.
Frequently Asked Questions
Q1: What is the Wärtsilä EV 303123 A used for?
It identifies an ESM-10 Engine Safety Module used in compatible engine automation systems to support engine monitoring and protective functions.
Q2: What power supply does the module use?
Published information for this ESM-10 configuration specifies 24 V DC nominal, with an operating range of 18–32 V DC. Always confirm the specific unit and engine documentation before applying power.
Q3: Is EV 303123 A the same as ESM-20?
No. EV 303123 A is associated with the ESM-10. The ESM-20 is a successor product, and interchangeability should not be assumed without checking the applicable Wärtsilä replacement instructions.
Q4: Can this module be installed on any Wärtsilä engine?
No. Compatibility depends on the engine model, automation system, module configuration, and approved parts documentation.
Q5: What should I check before purchasing?
Verify the nameplate, part number, revision, analog configuration, item condition, and any available test records. For a replacement, compare these details with the original installed module.
Recommended Related Wärtsilä Models and Components
The following models and component categories may be relevant when sourcing engine safety spares. They are not all direct replacements for EV 303123 A.
- Wärtsilä ESM-10 Engine Safety Module — The same module family; match the full part number and revision.
- Wärtsilä ESM-20 Engine Safety Module — Successor family; replacement requires application-specific verification.
- Wärtsilä EV 303143 — Part number associated with an ESM-20 module in product listings; confirm the complete order code.
- Wärtsilä PAAF074369 — Part number associated with an ESM-20 listing; verify the intended engine application.
- Wärtsilä 107.366.780.001 — Reported cross-reference for certain ESM-10 configurations; confirm with the engine parts catalogue.
- Wärtsilä MCM Main Control Module — Main engine control component used in applicable automation systems.
- Wärtsilä IOM Input/Output Module — Interface component for engine signals and automation.
- Wärtsilä PDM Power Distribution Module — Power distribution component in compatible engine automation architectures.
- Wärtsilä LDU Local Display Unit — Local operator display and monitoring component.
- Wärtsilä Engine Speed Sensor — Speed-measurement component used with compatible engine protection systems.
- Wärtsilä Magnetic Pickup Sensor — Engine speed sensing component; verify the required type and installation.
- Wärtsilä Pt100 Temperature Sensor — Temperature measurement component for compatible instrumentation circuits.
- Wärtsilä 4–20 mA Pressure Transmitter — Instrumentation component for compatible pressure-monitoring circuits.
- Wärtsilä Engine Safety Module Wiring Harness — Connection assembly; verify the engine-specific part number.
- Wärtsilä Engine Automation Spare Parts — Related sensors, connectors, power modules, and control components for scheduled maintenance.
Purchasing Reminder
Before ordering, compare the existing module’s nameplate and configuration with the listed EV 303123 A unit. Since the ESM-10 has been superseded by the ESM-20, verify the approved replacement path if the original module is no longer available. Confirm item condition, testing status, included accessories, and return terms with the seller.
