Abstract: A low resistance current interrupter for detecting the occurrence of an unsafe condition and terminating power to an electrical circuit. The current interrupter comprises two in-line connectors having a gap formed therebetween. An electrically conductive pin is disposed in the gap for movement between a first, extended position, wherein the pin bridges the gap to establish electrical contact between the connectors, to a second, retracted position wherein electrical contact is broken. The device further includes means for sensing the occurrence of an unsafe condition and generating a signal indicative thereof, and an electromechanical means such as a solenoid which, upon receiving said electrical signal, is activated and causes the pin to move to the second position.