Generac RTSR400A3 Smart Switch Automatic Transfer Switch 400 Amp 1PH 120/240V
The Generac RTSR400A3 Smart Switch Automatic Transfer Switch (ATS) is a high-capacity unit rated at 400 Amp, designed for whole-house backup in large residential properties utilizing 1-Phase, 120/240V power. This Smart Switch automatically monitors utility power and seamlessly transfers the electrical load to the standby generator upon detection of an outage, ensuring continuous power to all circuits without user intervention. The Generac RTSR400A3 Smart Switch is a critical component for integrating a powerful standby generator, providing unparalleled safety, convenience, and reliability for premium home power protection.
Description
This Generac Smart Switch Automatic Transfer Switch works with the digital controller on Generac air-cooled and liquid-cooled generators. Features DLM Technology allowing the switch to manage two air conditioning loads with no additional hardware. Match the Smart Switch to your electrical service voltage and phase and your generator’s voltage and phase.
What’s Included
- (1) Automatic transfer switch, Model# RTSR400A3
| Item# | 37852 |
| Brand | Generac |
| Manufacturer’s Warranty | 5 year limited warranty |
| Ship Weight | 141.0 lbs |
| Amps | 400 |
| Volts | 120/240 |
| Phase | Single |
| Application | Transfer switch |
| UL Listed | UL1008 |
| Dimensions W x D x H (in.) | 36 x 24 x 10 5/8 |







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