Boat manufacturers that want to comply with ABYC standards should already be aware that potential electrical sources of ignition should not be located in certain compartments that contain gasoline machinery, gasoline tanks or potential gasoline/propane storage containers. To take the guess work out of which breaker fits your application, use ELCI inlets with ignition protected breakers. This solution to the ABYC E-11 requirement is based on the industry-standard marine inlets. It's built into the inlets to provide boat builders and owners with a safe and durable solution. There are two modules in addition to the standard inlet. One houses the ELCI Marine Sensing Module, the other the breaker. The ELCI Marine sensing module has a 3/4" diameter coil that accepts up to three 6 gauge conductors. This sensing module, which also incorporates a test circuit, is compatible with 30A 125V, 50A 125V and 50A 125V/250V systems. There is a different breaker for 30A and 50 systems.Height (in): 3.4"Width (in): 9"Length/Depth (in): 5.1"Weight (oz): 26.4oz