Schneider Electric LRD21

The thermal overload relay is engineered to provide essential protection for three-phase motors, functioning effectively within a current range of 12 to 18 amperes, as per Class 10A standards. This device integrates seamlessly with TeSys D contactors, making it a vital component in motor starter assemblies, capable of handling contactors rated from 9 to 38 amperes.

Upon detecting overcurrents, the relay operates in conjunction with the contactor to disconnect power, thereby safeguarding motor windings from potential damage. The relay is compliant with multiple international standards including IEC, UL, CSA, and others, ensuring its reliability across various applications.

With a robust design, it withstands environmental challenges, operating effectively in ambient temperatures ranging from -20°C to 60°C without derating. It also features a dielectric strength of 1.89 kV, ensuring safe operation in demanding conditions. The IP20 protection rating signifies its suitability for a variety of industrial environments.

Furthermore, this overload relay supports a range of features including a red push-button for stop and a blue push-button for reset, ensuring ease of use. The relay's construction allows for flexible connections with screw clamp terminals accommodating various cable types, enhancing installation adaptability.