Abstract: A relay with a safety spring set such that the spring contact sets are arranged in chambers, which are freely accessible from the outside via openings when the cover is removed so that the spring contact sets can be manipulated. To prevent broken pieces from ending up in the other regions of the relay in the event of breakage of the contact springs of the spring contact sets, the cover has inwardly directed projections which seal the openings of the chambers when the cover is in place.

Abstract: A relay for the operation of a belt tightener or tensioner for automobile safety belts in the event of a collision with an obstacle. The relay consists of a conduit or dry-reed contact arrangement which is arranged in a housing with its longitudinal axis aligned perpendicular to the direction of travel and vertical to the horiztonal plane of the automobile, and an annular magnet surrounding the contact arrangement which is retained perpendicular to the longitudinal axis of the conduit of the contact arrangement by springs, equidistant from the contact arrangement at rest, and movable mainly horizontally.