Pyrotechnic Switch for an Electric Vehicle

A pyrotechnic switch comprising a pyrotechnic actuator that is electrically coupled to a conductive member and a fuse element element that is electrically coupled or capable of being electrically coupled to the pyrotechnic actuator, wherein the pyrotechnic actuator has an initial state in which a conductive path couples the actuator to the conductive member and an actuated state in which a gap is formed in the conductive member, wherein the pyrotechnic switch comprises a fiber-reinforced polymer composition comprising a polymer matrix that contains a high performance thermoplastic polymer and constitutes from about 30 wt. % to about 90 wt. % of the composition and a plurality of long reinforcing fibers in an amount from about 10 wt. % to about 70 wt. % of the composition, wherein the high performance thermoplastic polymer exhibits a deflection temperature under load of about 40° C. or more as determined in accordance with ISO 75-2:2013 at a load of 1.8 MPa.