Thermal Overload Relay

Thermal overload relay class 10 1 80 to 2 60a 690v lr2k0308 thermal overload relay class 10 1 80 to 2 60a 690v.

Thermal overload relay.

Thermal overload relays are economic electromechanical protection devices for the main circuit. A thermal overload relay works in the principle of electro thermal properties in a bimetallic strip. A thermal relay works depending upon the above mentioned property of metals. Easy to create starters.

The function of a thermal overload relay used in motor starter circuits is to prevent the motor from drawing excessive current which is harmful to motor insulation. The thermal overload relay can make up a compact starting solution together with contactors. Construction of thermal relay the construction of thermal relay is quite simple. It de energies the starter and stops the motor when excessive current is drawn.

The basic working principle of thermal relay is that when a bimetallic strip is heated up by a heating coil carrying over current of the system it bends and makes normally open contacts. They offer reliable protection for motors in the event of overload or phase failure. It is placed in the motor circuit in such a way that the current to the motor flows through its poles. These relays help to control the electrical current that goes to the motor to prevent it from overheating.

Reliable protection for motors. It is connected either directly to motor lines or indirectly through current transformers.