Fireboy-Xintex ELS Low Current Marine Engine Shutdown System The ELS series engine shutdown system is designed to automatically shutdown your engines, generators, and blower systems in the event of a fire in the engine compartment. This series is rated for 9-38V DC and N.O. or N.C. circuits. By turning off the engine you are allowing your fire suppression system reach proper agent levels of concentration that is needed to extinguish a fire. This automatic engine shutdown system includes either a