Leroy-Somer Varistor for LSA49.1 – Product Description

Overview
The Leroy-Somer Varistor for LSA49.1 is a high-performance surge protection component designed to protect the excitation system and rotating rectifier assembly of the LSA49.1 alternator series. It clamps and absorbs dangerous voltage spikes generated during load changes, switching surges, or fault conditions, ensuring stable alternator performance and preventing costly diode failures.

Key Features

• Purpose-built for Leroy-Somer LSA49.1 alternators

• Provides reliable protection against transient voltage surges

• High-energy MOV (Metal Oxide Varistor) construction

• Rugged, heat-resistant design suitable for heavy-duty generator environments

• Simple replacement during alternator servicing or diode maintenance

• Improves excitation stability and overall alternator reliability