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Generac 100 Amp NEMA 3R Smart Transfer Switch
- $257.00
- Brands Generac
- Product Code: RXSW100A3
- Availability: In Stock
Generac 100 Amp Service-Rated 120/240V Single-Phase NEMA 3R Smart Transfer SwitchThe Generac 100 Amp Service-Rated 120/240V Single-Phase NEMA 3R Smart Transfer Switch is designed to provide automatic switching between utility power and a compatible Generac standby generator. It is a practical solution for residential and selected light-commercial backup-power systems where a 100-amp service-rated ..
100 Amp Service Rated 120 240 Single Phase Transfer Switch
Generac 100 Amp Service-Rated 120/240V Single-Phase NEMA 3R Smart Transfer Switch
The Generac 100 Amp Service-Rated 120/240V Single-Phase NEMA 3R Smart Transfer Switch is designed to provide automatic switching between utility power and a compatible Generac standby generator. It is a practical solution for residential and selected light-commercial backup-power systems where a 100-amp service-rated transfer switch is required.
The switch monitors utility power and automatically transfers the connected electrical load to generator power when an outage occurs. Once utility power is restored and stable, it returns the load to the normal utility source.
Its NEMA 3R enclosure is designed for suitable indoor or outdoor installations, while the Smart Transfer functionality enables coordinated operation with compatible Generac generator systems.
Key Features
100-amp service-rated automatic transfer switch.
120/240V single-phase configuration.
NEMA 3R enclosure for suitable indoor or outdoor applications.
Smart Transfer functionality for communication with compatible Generac standby generators.
Automatically transfers electrical loads from utility to generator power during an outage.
Automatically returns loads to utility power when normal service is restored.
Designed for applications requiring a service-rated transfer switch.
Suitable for residential and compatible light-commercial standby power systems.
Provides a centralized connection between utility power, generator power, and the electrical load.
Automatic Power Transfer
The transfer switch continuously monitors the normal utility power source.
During normal operation, connected electrical loads are supplied by the utility. If the utility supply is interrupted or falls outside acceptable operating conditions, the compatible standby generator can receive the signal to start.
After the generator reaches the required operating conditions, the transfer switch moves the connected load from utility power to generator power.
When utility power returns and stabilizes, the switch automatically transfers the load back to the utility source. The generator can then complete its normal shutdown sequence.
This process allows a properly configured standby generator system to provide backup power without requiring manual switching.
100-Amp Service Rating
The 100-amp rating makes this transfer switch appropriate for electrical services designed around a 100-amp capacity.
The service rating of the transfer switch should not be confused with generator output. The generator itself must be appropriately sized for the electrical loads that are intended to operate during an outage.
A qualified electrician should perform the required load calculation and confirm that the transfer switch, generator, service equipment, and connected loads are correctly matched.
120/240V Single-Phase Configuration
This transfer switch is designed for 120/240-volt single-phase electrical service, a common configuration for residential electrical systems.
The configuration can support compatible 120V branch circuits and 240V loads when the generator and electrical system are correctly configured.
This makes the switch suitable for applications where backup power is required for a range of household or compatible light-commercial electrical equipment.
Service-Rated Construction
The service-rated design allows the transfer switch to be used in installations where the transfer equipment is required to serve as service equipment, provided the specific installation meets the manufacturer's requirements and applicable electrical codes.
Service-rated installations involve specific requirements for disconnecting means, overcurrent protection, grounding, bonding, and utility connections. These requirements should be evaluated by a qualified electrical professional before installation.
NEMA 3R Enclosure
The NEMA 3R enclosure is designed for appropriate indoor or outdoor installation locations and provides protection against falling rain, sleet, and external ice formation.
When installed outdoors, the switch should be mounted according to Generac's requirements and positioned where it remains accessible for inspection and maintenance.
Smart Transfer Technology
The Smart Transfer Switch is designed to coordinate with compatible Generac standby generators.
This communication allows the generator and transfer switch to work together during an outage, including generator start-up, load transfer, and return to utility power.
Always verify compatibility between the transfer switch and the exact generator model before installation.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Generac |
| Product Type | Smart Automatic Transfer Switch |
| Current Rating | 100 Amp |
| Voltage | 120/240 V |
| Phase | Single-Phase |
| Service Rating | Service Rated |
| Enclosure Rating | NEMA 3R |
| Transfer Type | Automatic |
| Technology | Smart Transfer |
| Primary Application | Standby Generator Power Transfer |
| Generator Compatibility | Compatible Generac Standby Generators |
| Installation | Suitable Indoor/Outdoor Applications |
| Electrical Service | 120/240V Single-Phase |
| Rated Current | 100 A |
Exact model-specific specifications such as pole configuration, short-circuit current rating, terminal capacity, wire range, enclosure dimensions, weight, neutral configuration, and approved generator models can vary by Generac transfer-switch SKU. Verify the exact model number and manufacturer's documentation before publishing those details as fixed specifications.
Typical Applications
The Generac 100-amp transfer switch is suitable for properly designed:
Residential standby generator systems
Homes with compatible 100-amp electrical service
Selected light-commercial backup-power systems
Whole-service or appropriately configured backup applications
New standby generator installations
Generator replacement or upgrade projects
Benefits of the Transfer Switch
Automatic Operation
The switch handles the transition between utility and generator power without requiring the user to manually change the power source.
Service-Rated Design
Its service-rated configuration allows it to be incorporated into appropriately designed service-equipment installations.
Outdoor Installation Capability
The NEMA 3R enclosure makes it suitable for compatible outdoor locations when installed according to manufacturer requirements.
Smart Generator Coordination
The Smart Transfer functionality allows compatible Generac generator systems and the transfer switch to coordinate their operation.
Automatic Utility Restoration
When utility power returns and stabilizes, the transfer switch automatically returns the electrical load to the normal source.
Installation Considerations
This equipment forms part of a permanent electrical installation and should be installed by a qualified electrician or appropriately licensed electrical professional.
Before installation, verify:
The electrical service is compatible with the 100A, 120/240V single-phase rating.
The generator is approved for use with the transfer switch.
The generator has sufficient capacity for the intended loads.
Service disconnect and overcurrent protection requirements are satisfied.
Grounding and bonding are correctly configured.
The outdoor installation location meets NEMA 3R and manufacturer requirements.
The complete installation complies with applicable electrical codes.
A Practical Solution for Automatic Backup Power
The Generac 100 Amp Service-Rated 120/240V Single-Phase NEMA 3R Smart Transfer Switch provides the automatic source switching required for a compatible Generac standby generator system.
With its 100-amp service rating, 120/240V single-phase configuration, Smart Transfer technology, and NEMA 3R enclosure, it offers a practical solution for properly designed residential and compatible light-commercial backup-power installations.
For a reliable installation, always match the transfer switch to the specific Generac generator, electrical service, calculated load, service configuration, and local code requirements.