One device used for electrical safety involves a metal strip that bends when it gets hot. This bending flips a switch which interrupts the current. What is this device called?

Answer: An Electrical fuse

Explanation: An electrical fuse is a small, thin metallic conductor designed to melt and/or separate into two pieces for the purpose of breaking a circuit. electrical fuse interrupts circuit current in the event of electrical hazard. A circuit breaker is designed to automatically disconnect to an overcurrent condition.