FIELD: electrical engineering; electromechanical protective relays. SUBSTANCE: relay equipped with deformable bimetal switch responding to overloads in power lines has its starting mechanism acting on bending contact spring 20 which is free to turn by means of stiff holder 30 on support 17 and its leg 21 has U- or V-shaped backward-folded extension piece 27 designed for elastic clasping to casing span 36. EFFECT: facilitated manufacture, reduced size of contact spring, enhanced precision, facilitated adjustment during installation. 6 cl, 4 dwg
