Generac automatic transfer switches are designed to seamlessly transition power between the utility grid and a backup generator, ensuring continuous electricity for residential and commercial applications. These switches are available in a variety of configurations to suit different electrical loads and installation requirements. This article provides an overview of key models, technical specifications, and installation considerations based on available documentation from Generac’s official product listings.
Overview of Generac Automatic Transfer Switches
Generac offers both service entrance-rated and non-service entrance-rated automatic transfer switches, each tailored for specific use cases and electrical system configurations. Service entrance-rated switches are typically used in larger residential or commercial settings where the generator is sized to support most or all of the building’s electrical load. Non-service entrance-rated switches, on the other hand, are often used in smaller installations or to power essential circuits during outages.
The transfer switches are engineered for reliability, with features such as integrated surge protection (SPD), integrated meters, and upgradeable components. Some models are designed for three-phase power systems, while others are suitable for standard single-phase residential setups.
Key Models and Specifications
1. Service Entrance-Rated Models
These models are suitable for use with larger generators and are rated to handle substantial electrical loads. They are commonly used in homes with standby generators or in small commercial applications.
- RXSW100A3SPD: Automatic transfer switch rated at 100A, service entrance-rated with integrated surge protection. Ideal for homes with medium to large generator systems.
- RXSW100A3: 100A service entrance-rated transfer switch without integrated SPD.
- RXSW200A3CUL: 200A service entrance-rated transfer switch designed for use in Canada.
- RXSW400A3CUL: 400A service entrance-rated transfer switch, suitable for commercial or large residential applications in Canada.
- RXUW200A3: 200A service entrance-rated transfer switch with integrated metering capabilities.
- RTSW300A3: 300A service entrance-rated transfer switch for high-load applications.
- RTSW400A3: 400A service entrance-rated transfer switch for commercial or industrial use.
These models are generally used in conjunction with Generac’s standby generator systems and are designed for automatic operation, switching to generator power when the utility grid fails.
2. Non-Service Entrance-Rated Models
Non-service entrance-rated switches are used to power specific circuits or loads rather than the entire electrical panel. They are suitable for applications where only essential appliances or systems need backup power.
- G0099530: 200A non-service entrance-rated transfer switch for partial load support.
- RXG10EZA1: 50A 10-circuit transfer switch for essential circuits such as lighting, refrigeration, and HVAC systems.
- RXG16EZA1: 100A 16-circuit transfer switch for homes requiring backup for multiple circuits.
- RXG16EZA3: 16-circuit NEMA 3R transfer switch with weatherproof housing.
- RXSC100A3: 100A non-service entrance-rated transfer switch for smaller installations.
- RTSN200G3: 200A non-service entrance-rated three-phase transfer switch.
- RTSC600A3: 600A non-service entrance-rated transfer switch for large commercial or industrial loads.
These models are often used in conjunction with portable generators or smaller standby systems.
3. Specialized and Upgradeable Models
Some Generac transfer switches come with advanced features such as integrated meters or surge protection, offering enhanced functionality for users who require additional monitoring or protection capabilities.
- RBU200A3: 200A service entrance-rated transfer switch with upgradeable integrated meter. This allows for optional installation of a meter for monitoring power usage.
- RXUW150A3: 150A service entrance-rated transfer switch with integrated meter for real-time power monitoring.
- G0099510: 200A service entrance-rated transfer switch with integrated SPD for additional electrical protection.
These models are particularly valuable in applications where users want to track energy consumption or ensure protection against power surges.
Installation Considerations
While detailed installation instructions are not provided in the source data, it is important to note that Generac recommends professional installation for all automatic transfer switches. These devices are typically hardwired into the electrical system and require careful planning and adherence to local electrical codes.
Key considerations for installation include:
- Generator Compatibility: Ensure that the selected transfer switch is compatible with the generator’s output rating and electrical configuration.
- Electrical Load Assessment: Calculate the total electrical load to be backed up to select the appropriate amperage rating for the transfer switch.
- Location and Environmental Protection: Choose a location that is accessible, dry, and free from extreme temperatures or moisture. For outdoor installations, NEMA 3R or similar weatherproof enclosures may be required.
- Code Compliance: All installations must adhere to the National Electrical Code (NEC) and local building regulations. This includes proper grounding, overcurrent protection, and isolation from the utility grid.
- Professional Installation: Given the complexity of electrical systems and the importance of safety, it is strongly advised to use a licensed electrician for installation.
Transfer Switch Series and Variants
Generac offers several series of automatic transfer switches, each designed for different applications and requirements.
RXS Series
- RXSW100A3SPD: 100A service entrance-rated with integrated SPD.
- RXSW200A3CUL: 200A service entrance-rated for Canadian applications.
- RXSW400A3CUL: 400A service entrance-rated for Canadian commercial use.
- RXG10EZA1: 50A 10-circuit for essential circuits.
- RXG16EZA1: 100A 16-circuit for multiple loads.
This series is widely used in residential applications and offers a range of configurations for varying electrical demands.
RTS Series
- RTSW200G3: 200A service entrance-rated three-phase transfer switch.
- RTSW300A3: 300A service entrance-rated for higher loads.
- RTSC400A3: 400A non-service entrance-rated for large commercial use.
- RTSC800A3: 800A non-service entrance-rated for industrial applications.
The RTS series is designed for more demanding environments and provides robust performance for commercial and industrial applications.
Homelink Series
- Homelink-30A-MTS (G0068521): 30A manual transfer switch for essential circuits.
- Homelink-30A-MTS-w-Power-Inlet-Box-Resin (G0068531): 30A manual transfer switch with a resin power inlet box for added durability.
These models are intended for manual switching and are typically used in smaller homes or for portable generator setups.
Key Features and Benefits
Generac automatic transfer switches offer a range of features that make them suitable for a variety of applications:
- Automatic Operation: These switches automatically detect utility outages and switch to generator power without user intervention, ensuring continuous power for essential systems.
- Integrated Surge Protection: Some models include integrated SPD to protect sensitive electronics from power surges during switching or grid instability.
- Upgradeable Components: Certain models allow for the installation of optional components such as meters or communication modules for monitoring and control.
- Weather-Resistant Enclosures: For outdoor or semi-outdoor installations, NEMA 3R-rated enclosures provide protection against environmental factors.
- Compatibility with Generac Generators: Designed to work seamlessly with Generac’s range of standby and portable generators.
These features make Generac transfer switches a reliable choice for users seeking to maintain power during outages and protect their electrical systems.
Applications and Use Cases
Generac automatic transfer switches are suitable for a wide range of applications, from residential homes to commercial facilities.
Residential Use
- Home Standby Systems: Used in conjunction with whole-house standby generators to ensure power for lighting, HVAC, refrigeration, and essential appliances during outages.
- Partial Load Backup: For homes where full backup is not necessary, non-service entrance-rated switches can be used to power essential circuits.
Commercial and Industrial Use
- Small Businesses: Used to power critical systems such as point-of-sale terminals, lighting, and security systems during outages.
- Industrial Facilities: Higher-rated models are used in manufacturing, warehouses, and data centers to ensure continuous operation of essential equipment.
Specialized Applications
- Three-Phase Systems: For industrial or commercial facilities that rely on three-phase power, Generac offers three-phase-rated transfer switches.
- Remote Monitoring and Control: With optional upgradeable components, users can monitor power usage and system status in real time.
Limitations and Considerations
While Generac automatic transfer switches are highly reliable, there are certain limitations and considerations to keep in mind:
- Professional Installation Required: Due to the complexity of electrical systems and the need for code compliance, installation must be performed by a licensed electrician.
- Generator Sizing: The generator must be sized appropriately to handle the electrical load of the transfer switch and the connected circuits.
- Regional Availability: Some models are specific to certain regions (e.g., Canada), and availability may vary based on location.
- Price Variability: Prices are listed in U.S. dollars and are intended for U.S. customers. For customers in other regions, pricing should be obtained from a local Generac dealer.
Conclusion
Generac automatic transfer switches provide a reliable and efficient solution for switching between utility and generator power in both residential and commercial settings. With a wide range of models available, users can select the appropriate configuration based on their electrical load, generator size, and environmental requirements. Features such as integrated surge protection, upgradeable components, and weather-resistant enclosures further enhance the functionality and durability of these switches.
For users seeking a seamless power transition during outages, Generac offers a comprehensive selection of transfer switches that are engineered for performance, reliability, and ease of integration with a variety of generator systems.