Abstract: An electromagnetic relay has a contact assembly and an electromagnet arranged in side-by-side relation within a housing along its length. The contact assembly includes a fixed contact and a movable contact. The electromagnet includes an excitation coil and an armature movable between two contact operating positions in response to energization and deenergization of the coil. The armature is coupled through a card to the movable contact for engaging and disengaging it to and from the fixed contact in response to the armature movement. A partition extends between the electromagnet and the contact assembly in a width direction of the housing for electrical insulation therebetween. The card has an extended width formed along the width of the partition. The partition has a slit extending in the width direction for receiving the full width of the card such that the card can slide through the slit for contact closing and opening in response to the armature movement.