All-in-One Smart Transfer Switch and Load Center Solution

The Generac RXGW20SHA3 200 Amp Service-Rated Smart Transfer Switch Load Center combines an intelligent automatic transfer switch with a full-featured electrical panel in one compact, weatherproof enclosure. This innovative design simplifies installation, reduces costs, and delivers seamless whole-home backup power protection for residential properties with 200-amp electrical service.

Two Critical Components in One Enclosure

Traditional backup power systems require separate transfer switches and load centers, increasing installation complexity and cost. The RXGW20SHA3 integrates both functions into a single NEMA 3R outdoor-rated unit, streamlining your electrical infrastructure while providing professional-grade automatic power transfer and circuit distribution.

Key Features & Specifications

• 200-amp service rating – ideal for most residential homes and light commercial applications
• 120/240V single-phase configuration – standard residential electrical system compatibility
• 20-40 circuit capacity – expandable load center accommodates growing electrical needs
• Service-rated design – functions as your main electrical disconnect, eliminating the need for a separate service panel
• Smart load management technology – intelligently prioritizes critical circuits during outages to optimize generator performance
• Automatic transfer switch built-in – seamless utility-to-generator switching with no manual intervention
• NEMA 3R weatherproof enclosure – outdoor-rated for reliable performance in all weather conditions
• Generac-engineered integration – designed specifically for Generac standby generators

Intelligent Load Shedding for Maximum Efficiency

The integrated smart transfer switch features advanced load management that automatically prioritizes your most critical circuits during power outages. This ensures essential systems—HVAC, refrigeration, security, lighting, and communications—stay online while maximizing your generator's capacity and fuel efficiency. Non-essential loads are intelligently shed to prevent generator overload.

Simplified Installation, Lower Costs

By combining the transfer switch and load center in one unit, the RXGW20SHA3 significantly reduces installation time and labor costs compared to traditional separate-component systems. The service-rated design means it can serve as your main electrical disconnect, further simplifying your electrical infrastructure and reducing the number of components required.

Ideal Applications

• New construction residential homes with 200-amp service
• Whole-home generator retrofits requiring panel upgrades
• Properties upgrading from 100-amp to 200-amp service
• Homes in areas prone to frequent power outages
• Properties with critical power needs (medical equipment, home offices, security systems)
• Light commercial buildings requiring reliable backup power

Expandable Circuit Capacity

The 20-40 circuit configuration provides flexibility for current and future electrical needs. Start with the circuits you need today and expand as your electrical demands grow—perfect for properties planning additions, workshops, EV charging stations, or other high-demand upgrades.

Seamless Generac Generator Integration

When utility power fails, the integrated transfer switch signals your Generac standby generator to start, monitors generator readiness, and automatically transfers the load once stable backup power is available. When utility power returns, the system seamlessly transfers back and signals the generator to shut down after a proper cool-down period—all completely automatic.

Professional Installation Required

This service-rated transfer switch load center must be installed by a licensed electrician in accordance with local electrical codes and NEC requirements. Professional installation ensures safe, code-compliant operation and proper integration with your Generac standby generator system.

Simplify your backup power installation with Generac's innovative all-in-one transfer switch and load center solution.