Electromagnetic relay and method for assembling the same

An electromagnetic relay, comprising:

• a flat insulating base;
• a motor unit mounted on said base, comprising a coil, an iron core and a frame;
• an armature pivoted on an end edge of said frame and having a free end movable in an actuating direction parallel to said base upon energization or de-energization of said coil;
• at least one contact group comprising a movable contact spring and at least one stationary contact member fastened to said base and extending nearly perpendicular thereto;
• an insulated card-like pusher connected to said free end of said armature and to a movable end of said at least one contact spring so as to actuate said contact spring in accordance with a movement of said armature;
• and
• an armature retainer spring fastened to said armature and coupled to said frame, said retainer spring having a first section extending between the base and the frame and being fastened to said frame, a second section extending nearly perpendicular to said first section, being fastened to an outer surface of said armature and biasing said armature by an acute angle away from the core, and a third section forming at least one claw member that clamps said pusher to the free end of the armature.