Thermal overload relay 23-32A, for D40-D95 contactor LRD3353

Overload Relays for Motor and Circuit Protection

This Schneider Electric overload relay from the TeSys LRD series is a reliable protection element designed to protect motors and electrical circuits from the effects of overloads. The device effectively reacts to overloads, phase failure and long-term load, ensuring the continuity of the installation and minimizing the risk of damage. The LRD3353 relay is compatible with TeSys Deca D40-D95 series contactors, making it easy to integrate into existing systems.

Functionality and application

The LRD3353 thermal relay offers a wide range of current setting (23…32A), allowing precise adjustment to the characteristics of the protected circuit. It has built-in auxiliary contacts (1 normally open and 1 normally closed), which allow remote monitoring of the device status and integration with control and signaling systems. Automatic reset simplifies system restart after the cause of the trip has been removed, and the manual reset button gives full control over the reset process. The device finds application in a wide range of industrial applications, including motor starters, electrical switchboards and automation systems.

Design and characteristic features

The LRD3353 relay is characterized by a solid construction and high quality workmanship. Direct mounting simplifies installation, and screw connection ensures secure and durable electrical connections. Class 10A tripping guarantees a quick and effective response to overloads. Built-in mirror contacts increase application flexibility, and temperature compensation capability ensures precise operation in various environmental conditions. The device meets stringent safety standards (IEC 60947-4-1) and has quality certificates confirming its reliability and durability. Additionally, the relay is equipped with a trip indication, which facilitates troubleshooting of the circuit.