Contact unit for electromagnetic relays

To increase the reliability of the contact with safety relay is a contact spring (10) with two contact pieces (15, 16) provided, at the free end of the contact spring (10) arranged transversely to the longitudinal axis are and on a common fixed contact (12) arranged contact pieces (17, 18) Collaborate. The contact spring(10) is in an area (19) not only flexible but also about its longitudinal axis Torsion sufficient to ensure that both contact pairs conclude. By inclination of the contact pieces(15, 16) supporting free end of the contact spring (10) opposite the fixed contact (12) becomes a soft bounce or poor closing of the contacts, while the function a pre- and a main contact achieved.