24vac SPST-NO (normally open) motor overload relay - flange mount style
LRA (locked rotor amps) - a very high current that a motor temporarily draws when power is first applied to the motor
Brand name (s) : Zettler controls

Features:
Maximum rating: 25 A / 277 VAC
60 LRA 125 VAC / 48 LRA 250 VAC
Universal mounting bracket with break-away tabs
Quick-connect terminals