Abstract: An electromagnetic relay having a magnetic system actuatable to displace a movable contact element to make and break with at least one fixed contact element is provided with an insertable member of insulating material which has a vertical wall dividing the interior of the relay into essentially non-communicating portions respectively containing the contact elements and the magnetic system. The portion containing the magnetic system is further surrounded by opposed parallel lateral walls which, with the vertical wall, provide an insulating enclosure for the magnetic system. The magnetic system includes a yoke which has projections thereon slidably received in vertical grooves in the lateral walls. The lateral walls are sufficiently expandable such that during assembly the yoke can be inserted in the grooves in a snap-in manner. The yoke is attached to the magnetic coil so that no further structure is required to support the magnetic system.

Abstract: A relay having a housing and a base has a number of flexible contact elements mounted in slots in the base, each having a fixed terminal extending out of the relay and a contact portion extending inside the relay movable by an electromagnetic actuator. Each contact element has a longitudinal slot therein for receiving a transverse rib carried on the relay base for rigidly retaining the contact element in place and minimizing transmittal of mechanical displacement forces from the terminal portion of the element to the contact portion thereof. Each contact element may also be provided with a retaining tooth which engages a cooperatively disposed slot in the relay base to add further stability to the contact element mounting. Each contact element may thus be provided with a greater flexible portion thereof having unimpaired movement without increasing the size of the relay housing.