The Generac G0099550 is a 150 amp service entrance rated automatic transfer switch engineered for seamless integration with single phase generators utilizing Evolution™ or Power Zone™ 200/410 controllers. This open transition transfer switch provides reliable backup power switching for residential and commercial applications, ensuring continuous power during utility outages.

Constructed with a durable aluminum NEMA Type 3R enclosure and electrostatically applied powder coat finish, this transfer switch delivers long-lasting performance in outdoor environments. The unit features a heavy-duty Generac contactor (ETL recognized device), fast mount hanging system for simplified installation, and comprehensive timing functions controlled by the generator's onboard controller. Key applications include residential backup power systems, small commercial facilities, and critical load transfer applications requiring reliable automatic switching between utility and generator power sources.

Key Features: 

• Service entrance rated configuration for main electrical panel integration
• Fast mount hanging system for expedited installation
• Heavy duty Generac contactor with ETL recognition
• NEMA 3R aluminum enclosure with weather-resistant finish
• 22,000 amp withstand rating for enhanced electrical protection
• 250 MCM to #6 lug range for flexible wire connections
• 5-year limited warranty coverage
• Manual operation capability without applied power