Commercial marine engine monitoring panel with oil pressure, water temp gauges, and fault alarms

Panels | Other Panels

Engine Coolant Temperature | Engine Oil Pressure | Analog Tachometer/ Digital Hour Meter

Marine · Industrial · Mechanical Engine Protection Systems

Murphy Marine Engine Panels: Essential Protection & Monitoring Systems

Enhance the reliability and control of your commercial marine mechanical engine with the Murphy Marine Engine Panel Series (MLP & MRP). These rugged, high-quality panel solutions provide critical, real-time data via robust analog gauges and precise First Out Fault Annunciators (ST5/ST10). Designed specifically to withstand harsh environments, these panels deliver the durability and functionality required for comprehensive engine monitoring and protection at sea.

4 Engine Gauges

12V System Voltage

13A Max Current

Key Start/Stop Control

Key Features Section

Comprehensive Gauge Monitoring (Local Panels - MLP) Local Panels provide operators with immediate, analog visibility of critical data. Standard features include robust gauges for Engine Water Temperature, Engine Oil Pressure, and Voltage.
Expanded 300 Series Data Inputs The MLP300 model significantly expands monitoring capability for complex mechanical systems, adding dedicated gauges for Gear Oil Pressure, Exhaust Temperature (Pyrometer), and Crankcase Pressure.
First Out Fault Annunciation (Remote Panels - MRP) The MRP100 (ST5) and MRP300 (ST10) remote panels feature Murphy's Annunciator technology, which instantly identifies and illuminates the "First Out Fault Indication" during a protective shutdown. This capability ensures rapid and accurate diagnosis, minimizing downtime.
Flexible Local/Remote Engine Control The advanced 300 Series includes a convenient Local/Remote Toggle Switch to switch operational control. All panels facilitate engine control via a simple Key Switch for start and a reliable Engine Stop Push Button for immediate shutdown.
Rugged, Marine-Grade Construction Designed for survival in harsh conditions, the panels are constructed from durable Polycarbonate material. Local panels (MLP) also feature standard shock mounts and an enclosed design to protect components from vibration, moisture, and corrosion.
Tachometer and Hour Meter Integration Every model includes a combined Analog Tachometer and Digital Hour Meter to track engine speed and cumulative run time, which is essential for accurate maintenance scheduling.

Applications

Commercial Marine Vessels The primary application is on commercial marine mechanical engines utilized in demanding vessels such as fishing fleets, work boats, tugs, barges, and other heavy-duty sea transport that require continuous, reliable engine monitoring.
Industrial Mechanical Equipment The robust construction and monitoring capabilities make these panels ideal for other heavy-duty, engine-driven applications, including industrial compressors, large power units, and generators operating in challenging industrial or outdoor environments.
Engine Protection Systems The panels serve as the primary interface for mechanical engine protection systems, instantly alerting or shutting down the engine based on critical high-temperature, low-pressure, or overspeed conditions.

Technical Specifications

Engineered for precision. Built for the harshest environments on Earth.

Category	Details (CO3-12 / CO3-24)
Product Series	100 Series (MLP100, MRP100) and 300 Series (MLP300, MRP300)
Primary Function	Monitoring, Alarm Capabilities, and Engine Control Interface
Engine Compatibility	Designed specifically for Mechanical Engine Applications
Operational Voltage	Available in 12-VDC or 24-VDC> configurations
Panel Style Options	Local Panel (MLP): Enclosed, Shock-Mounted / Remote Panel (MRP): Flat-Face Mount
Fault Diagnostics	Features analog gauges and/or First Out Annunciation (ST5/ST10) for critical alarms
300 Series Control	Includes a Local/Remote Toggle Switch for operational flexibility
Construction Material	Durable Polycarbonate
Control Features	Key Switch Start and Engine Stop Push Button
Max Current Draw	Up to 13 Amps (Panel dependent)

Technical FAQ

Common Questions Answered

Can't find your answer? Contact our engineers →

The MLP (Local Panel) is an enclosed unit, typically shock-mounted near the engine, featuring comprehensive analog gauges for direct monitoring. The MRP (Remote Panel) is a flat-face unit designed for remote dashboard mounting, focusing heavily on First Out Fault Annunciation (ST5/ST10 lamps).

First Out Fault Indication is a diagnostic feature of the ST5 and ST10 Annunciators. It means the panel will only light up the lamp corresponding to the initial cause of an engine fault or shutdown, preventing operators from mistakenly diagnosing secondary effects of the failure.

The Murphy Marine Engine Panel Series (MLP/MRP 100 & 300) is specifically designed and wired for mechanical engine applications. They utilize analog sensor inputs (pressure, temperature, magnetic pickup) rather than CAN bus communication used by electronic engines.

Both the 100 Series and 300 Series panels are available in configurations to support both 12-Volt and 24-Volt DC engine electrical systems.