Generac RXG24SHA1 100A 1ph-120/240V Service Rated Nema 1 Automatic Transfer Switch with 24-circuit Load Center Features:
Generac RXG24SHA1 100A Automatic Transfer Switch Features:
The Generac RXG24SHA1 is an all-in-one solution crafted for homes that want essential backup power with clean integration. This switch combines a 100-amp service entrance rated main breaker, an automatic transfer switch (ATS), and a 24-space load center in a single flush-mount NEMA 1 steel panel. Designed for indoor installation, it streamlines installations by reducing the need for separate panels and simplifying wiring.
Built with intelligent load management, the RXG24SHA1 allows you to manage up to four HVAC loads without needing additional hardware. That makes it possible to downsize the generator needed, save on initial costs, and still ensure that your critical systems—cooling, heating, refrigeration—are supported when grid power goes down. The load center is expandable to 40 circuits by using tandem breakers in the available spaces, which gives flexibility for future electrical additions.
Featuring open-transition switching, the RXG24SHA1 ensures that utility power is fully disconnected before the generator takes over—protecting both your equipment and home wiring. All timing, sensing, and exerciser schedules are managed by your Generac generator’s controller (Evolution™ or Nexus™), allowing consistent, safe operation. It’s housed in a steel interior-rated (NEMA 1) enclosure, meant for clean spaces, garages, or basements—not for outdoor exposed installations.
Backed by a 5-year limited warranty, this model is perfect for homeowners who want a compact, clean, and cost-efficient ATS solution with built-in circuit protection and room to grow.
Key Features
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100-Amp service entrance rated ATS integrating the main breaker, transfer switch, and load center
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24 breaker spaces, expandable to 40 circuits via tandem breakers
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Supports up to 4 HVAC (24 VAC controlled) loads without needing extra modules
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Indoor NEMA 1 steel enclosure for protected, interior installations
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Open-transition switching: utility power disconnects before generator power connects
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Compatible with Generac Evolution™ or Nexus™ generator controllers (for timing, sensing, and automatic operation)
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Accepts standard, GFCI, AFCI, and tandem breakers from multiple brands
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UL / ETL listings for service equipment and consumer safety per applicable standards
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Withstand rating approx. 10,000 amps
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Clear wiring access and compact footprint to simplify installation
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5-year limited warranty
