IEC EN 60947-5-1, high protection class IP66, world market device, modular building block system, also used in circuits that serve safety through positive actuation and positive opening contacts. Simple assembly technology, drive heads can be placed in all 4 directions and snapped on easily, quickly and safely with a bayonet lock. They are designed with cage clamp or screw clamp technology and are available in metal or plastic housing, suitable for electronics according to IEC/EN 61131-2