Thermal overload relay TeSys LRD 0.25-0.4A screw terminals LRD03

Overload relay – reliable motor protection

The TeSys LRD03 overload relay is a key element in protecting electrical circuits and motors from the effects of overloads. Designed by Schneider Electric, the LRD03 model offers effective protection against overload, phase failure, and long-term rotor blocking. This relay, with a current setting range of 0.25…0.4A, is ideal for applications requiring precise and reliable protection.

Functionality and application

The LRD03 relay is designed for direct mounting and cooperation with TeSys Deca series contactors (especially LC1D09..38). Its construction based on the bimetal principle ensures a quick and precise response to changes in current in the circuit. Built-in auxiliary contacts (1NO + 1NC) allow signaling of the tripping state and remote control of the circuit. The relay also has an automatic reset function, which increases user comfort and minimizes installation downtime.

Design features and benefits

• Wide range of applications: The LRD03 relay works perfectly in industrial applications, motor control systems, and anywhere where protection against overloads is required.
• Simple installation: Direct mounting simplifies installation and integration with existing systems.
• Built-in auxiliary contacts: Allow the implementation of additional control and signaling functions without the need for additional elements.
• Automatic reset: Ensures a quick return to work after the cause of tripping has subsided, minimizing downtime.
• Class 10A release: Guarantees precise and reliable circuit protection.
• Compliance with standards: The relay meets stringent safety and quality standards, ensuring safe and long-lasting operation.
• Compact dimensions: Allow installation in limited space.
• Screw terminals: Provide secure and durable connection of wires.

The LRD03 relay is not only a protective element, but also an investment in the reliability and safety of the electrical installation. Its solid construction and advanced features make it the ideal choice for both professional installers and end-users looking for a proven solution to protect their equipment.