The Generac G0099530 single‑phase non‑service rated automatic transfer switch is designed for use with compatible Generac standby generators equipped with Evolution or Power Zone 200 controllers. This 200 amp, 120/240V open‑transition transfer switch automatically manages the connection between utility power and generator power during outages, enabling seamless power transfer without manual intervention. Housed in a NEMA 3R aluminum enclosure, it is intended for outdoor residential and light commercial installations where a non‑service rated solution is required.

This transfer switch is commonly used in whole‑home and large residential backup power applications where the main service disconnect is located upstream. Integrated whole‑house surge protection is built directly into the switch to help block damaging surges and transients from entering the electrical system. All timing, sensing, and transfer operations are handled by the generator controller, supporting reliable coordination between the generator and connected electrical loads. The fast‑mount hanging system is designed to simplify installation and reduce setup time for electricians and installers.

This Generac automatic transfer switch is designed for use with single‑phase Generac generators equipped with Evolution or Power Zone 200 controllers. Available in 100, 150, and 200 amp single‑phase configurations, the series features an open‑transition design with an integrated whole‑house surge protection device built directly into the switch. The surge protection system helps block damaging surges and transients using thermally protected metal oxide varistors to reduce the risk of thermal damage. A fast‑mount hanging system is included to simplify installation and help reduce installation time.

Hardened Transfer Switch Control

Designed to withstand utility power disturbances such as brownouts, this control supports dependable automatic transfer operation for consistent system performance.

NEMA 3R Outdoor‑Rated Enclosure

Suitable for indoor or outdoor installation, this durable enclosure protects internal switch components from weather exposure and debris to support reliable long‑term operation.

Key Features:

• 200 amp single‑phase automatic transfer switch rated for 120/240V applications
• Non‑service rated, open‑transition design for use with upstream service disconnects
• Compatible with Generac generators using Evolution or Power Zone 200 controllers
• Integrated whole‑house surge protection device with thermally protected MOVs
• NEMA 3R aluminum enclosure suitable for outdoor installation
• Generator controller manages timing, sensing, exercising, and transfer commands
• Fast‑mount hanging system designed to simplify and expedite installation
• ETL listed components and backed by a 5‑year limited warranty