TeSys LR9

The Schneider Electric TeSys LR9 range represents a pinnacle in motor protection technology, offering sophisticated, high-performance electronic thermal overload relays designed for demanding industrial environments. Unlike standard bi-metallic options, the LR9 series provides enhanced precision, versatility, and a compact footprint, ensuring your critical motor assets remain shielded from damage due to thermal overloads or phase failures.

The TeSys LR9 is engineered to work seamlessly with TeSys D and TeSys F contactors, creating a robust, integrated motor starter solution. By utilising electronic sensing rather than traditional thermal expansion, these relays offer a significantly more accurate "trip curve," reducing the risk of nuisance tripping while providing ironclad protection.

Key Protection Features Include:

Thermal Overload: Constant monitoring of motor current to prevent overheating.
Phase Failure & Unbalance: Rapid detection of power inconsistencies to prevent single-phasing damage.
Prolonged Starting Times: Specifically designed to handle motors with high inertia or long start-up cycles without compromising safety.
Stalled Rotor Protection: Immediate intervention if the motor fails to rotate under load.