Generac RTSC600A3 600A 1ph-120/240V Nema 3R Automatic Transfer Switch

Generac RTSC600A3 600A 1ph-120/240V Nema 3R Automatic Transfer Switch Features:

Generac RTSC600A3 600A Automatic Transfer Switch Features:

The Generac RTSC600A3 is a high-capacity, non-service entrance automatic transfer switch designed for homes or facilities with large electrical demands. Rated at 600 amps, this single-phase (120/240V) switch ensures your standby generator can take over your full load during a utility outage without compromising safety or performance. It’s made for reliability, offering seamless transition and robust construction to protect your electrical system.

Equipped with integrated load management via a Smart A/C Module (SACM), this switch can control up to four individual HVAC loads without needing extra accessories. If more load control is required, optional external Smart Management Modules allow you to scale up—helping to reduce generator size while preserving essential systems. Its open-transition design ensures utility power is fully disconnected before generator power is applied, preventing dangerous overlap between power sources.

Built for lasting durability, the RTSC600A3 is housed in a NEMA 3R-rated steel/aluminum enclosure that withstands rain, snow, ice, and debris. Internal components like the heavy-duty Generac contactor and properly sized lugs are engineered for frequent use. Timing and sensing are managed by the generator's controller, which handles delays, voltage pickup/drop-out, and system exerciser settings to ensure safe, predictable switching.

Backed by Generac’s strong 5-year limited warranty, this transfer switch delivers peace of mind along with powerful performance—ideal for homeowners needing large-scale standby power without compromising code compliance.

Key Features

• 600 Amp automatic transfer switch (non-service entrance, single-phase 120/240V)

• Integrated load management: controls up to 4 HVAC units out of the box; expandable with external modules

• Open-transition switching: separates utility and generator sources cleanly during transfer

• NEMA 3R-rated steel/aluminum enclosure for outdoor or indoor protected installation

• Heavy-duty Generac contactor and large lug capacity for high-current service

• Withstand rating: 42,000 Amps (ensures durability against surge or fault conditions)

• Lug range: accommodates from ~1/0 up to 500 MCM conductors

• Adjustable factory-set timer delays for steps like generator start, voltage pickup, re-transfer, and cooldown

• Exerciser modes to maintain generator readiness (weekly schedule configurable via controller)

• 5-year limited manufacturer warranty

RTSC600A3 Specifications Sheet
RTSC600A3 Owner's Manual
RTSC600A3 Warranty