Leroy-Somer Surge R781 – Product Description

Overview
The Leroy-Somer Surge R781 is a high-performance surge protection module designed to safeguard the excitation system and rotating rectifier of Leroy-Somer industrial alternators. It effectively absorbs and clamps dangerous voltage spikes caused by load variations, switching events, or electrical faults—ensuring stable generator operation and extending the service life of critical components.

Key Features

• Engineered for Leroy-Somer LSA-series alternators

• Provides strong protection against transient voltage surges

• Prevents diode and rectifier bridge failure in the excitation system

• Built with durable, heat-resistant industrial-grade components

• Compact, easy-to-install replacement during alternator servicing

• Enhances generator stability and operational reliability