A rupture disk assembly comprises: a single-part or multi-part body with an opening that forms an outlet for a conduit or a container; a rupture disk that closes the opening and bursts subject to the action of a rupture pressure in order to unblock the opening; an actuator to reduce the rupture pressure, wherein the actuator includes a plunger to reduce the rupture pressure on the rupture disk, the plunger being configured to strike against the rupture disk; and a housing to receive the actuator, the housing including a housing opening for the plunger.