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Automatic Marine Engine Shutdown Systems

Automatic Marine Engine Shutdown is Required For Diesel Engines

Compressed gas suppressants such as HFC-227ea and 3M™ Novec™ 1230 Fire Protection Fluid will not stall a diesel engine.

If a fire breaks out aboard a diesel powered vessel, the engine(s) must be shut down prior or during the discharge of the Fireboy suppression system to effectively extinguish the fire. Continued engine operation may remove the agent, lowering the concentration required to effectively extinguish the fire, making an Engine Shutdown System necessary.

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Engine Shutdown Systems Brochure

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Engine Shutdown Manual and Installation (ESC Series)

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Engine Shutdown Manual and Installation (ES / ELS Series)

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First Select from the Three Series Available:

Each engine shutdown display unit comes with an integrated alarm horn, charged / discharged lights and an override switch for restart or control of auto-shutdown. Additional units and wire harnesses are available for a second station.

ESC Series:

Featuring an ISO 54 Enclosure, fuses, internal terminals, Heyco™ wire connectors, along with a see thru cover to easy observe circuit board mounted L.E.D.’s which indicate circuit board and Fireboy Extinguisher status, or that a fault condition exists. Non-energized relays. A combination of models including 6, 8, and 10 circuits. Select from a combination of relays; 15 amp and 2 amp gold plated relays, (operating range 10 uA to 2 amps).

All ESC models operate on Multi-Voltage 12-24-32V DC

All models include a square black (DU-SBH-20) display with Water Resistant Display featuring multi-colored L.E.D’s. for the helm station with override function.

ELS Series:

Engine circuit relays feature an operating range of 10 uA to 2 amps. Auxiliary relays have an operating range of 200mA to 20 amps for the shutdown of generators, dampers, louvers, and other types of related engine room equipment.

All ELS models are 9-38V DC compatible with a choice of either a round (DU-RBH-20) or square (DU-SBH-20) helm display.

ES Series:

Available for shutting down up to eight circuits with engine circuit relays featuring an operating range of 200 mA to 20 amps. Operates in 9-38V DC models.

The ES model includes a choice of either a round (DU-RBH-20) or square (DU-SBH-20) helm station display.

Marine Engine Shutdown System Displays


Deluxe Helm Display, Membrane Switch, Remote Horn, LED Display, Square Only.  Includes 3 ft. cable.


Deluxe Helm Display with Gauge Body, LED and Color Graphics.  Includes 3 ft. cable.


Deluxe Helm Display, 2 Systems: Control Primary, Monitor Secondary.  Remote Horn, LED Display, Square Only.  Includes 3 ft. cable.