A helical coil clutch assembly comprising an actuator to effect engagement of helical coil clutch with a clutch surface

A driven accessory having a clutch that permits selective operation of an accessory portion. The clutch employs rotational inertia to control driving engagement of a wrap spring (104) to an interior clutch surface (150) on a drive member (106) and/or driving disengagement of the wrap spring from the interior clutch surface.