What is the purpose of a kill switch or engine cutoff switch on a boat?

The primary purpose of a kill switch or engine cutoff switch on a boat is to automatically shut off the engine in the event that the operator falls overboard. This safety feature is crucial for preventing accidents and ensuring the safety of everyone on board. When the operator is ejected from the boat, the kill switch disconnects the ignition, stopping the engine immediately. This helps to prevent the boat from continuing on its course and potentially causing harm to the person who has fallen in or to others nearby.

Proper use of a kill switch is essential for maintaining safety while boating, especially in situations where the operator may become incapacitated or lose control. The effectiveness of this safety device underlines the importance of always wearing the lanyard connected to the switch when operating the boat. Other choices like preventing speeding, activating additional safety features, or ensuring fuel efficiency do not accurately represent the main function of the kill switch.