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Generac 200 Amp 42 Circuit Automatic Transfer Switch
- $483.00
- Brands Generac
- Product Code: RXG42SHA1
- Availability: In Stock
Generac 200 Amp 42-Circuit Load Center Automatic Transfer Switch SE ATS – NEMA 1 ULThe Generac 200 Amp 42-Circuit Load Center Automatic Transfer Switch (SE ATS) is designed to simplify automatic generator backup for residential electrical systems. Combining a 200-amp service-entrance-rated transfer switch with a 42-circuit load center, this unit provides a centralized solution for transferring ele..
Generac 200 Amp Load Center SE ATS with NEMA 1 UL Rating
Generac 200 Amp 42-Circuit Load Center Automatic Transfer Switch SE ATS – NEMA 1 UL
The Generac 200 Amp 42-Circuit Load Center Automatic Transfer Switch (SE ATS) is designed to simplify automatic generator backup for residential electrical systems. Combining a 200-amp service-entrance-rated transfer switch with a 42-circuit load center, this unit provides a centralized solution for transferring electrical loads between utility power and a compatible standby generator.
Its integrated load center helps organize branch circuits in one enclosure, while automatic transfer functionality allows the system to switch between utility and generator power when an outage occurs. The NEMA 1 enclosure is intended for indoor installation, and this version is UL listed rather than CUL listed.
Key Features
200-amp service-entrance-rated automatic transfer switch.
Integrated 42-circuit load center for branch-circuit distribution.
Designed for compatible Generac standby generator systems.
NEMA 1 enclosure intended for indoor applications.
UL listed configuration; not CUL listed.
Automatic transfer between utility and generator power.
Helps consolidate generator transfer and electrical load-center functions.
Designed for residential standby-power installations.
Provides a practical solution for managing multiple household circuits during an outage.
Integrated Load Center
A major advantage of this transfer switch is its built-in 42-circuit load center.
Rather than requiring a separate load center and transfer-switch arrangement, the integrated design provides a centralized location for connecting and organizing branch circuits.
This can simplify the electrical layout of a compatible standby-generator installation while providing room for multiple household circuits.
The actual number of circuits that can be supported depends on the panel configuration, breaker arrangement, and applicable installation requirements.
200-Amp Service Rating
The transfer switch is rated for 200 amps, making it suitable for electrical services designed around a 200-amp service capacity.
The 200-amp rating describes the capacity of the transfer equipment and should not be confused with the generator's available output. A standby generator may provide considerably less power than the full service rating, so proper load management and generator sizing are important.
A qualified electrician should determine the appropriate generator size, circuit configuration, conductor requirements, and overcurrent protection for the installation.
Automatic Transfer Operation
The ATS is designed to automatically manage the transition between utility power and compatible standby-generator power.
During a utility outage, the standby generator starts according to its control system. Once acceptable generator power is available, the transfer switch moves the connected loads from utility power to generator power.
When utility power returns, the system transfers the loads back to the utility supply according to the programmed operating sequence.
This automatic process allows backup power to operate without requiring the homeowner to manually switch circuits during an outage.
Service Entrance Rated
The service-entrance-rated (SE) configuration is designed for installations where the transfer equipment forms part of the building's service equipment arrangement.
This can help simplify certain standby-generator installations by integrating the service disconnect and transfer functions into the appropriate system configuration.
Because service equipment is part of the building's primary electrical distribution system, installation must comply with applicable electrical codes and manufacturer requirements.
42-Circuit Capacity
The integrated load center provides space for up to 42 circuits, allowing a broad selection of household electrical loads to be connected and organized.
Depending on the installation and generator capacity, connected circuits may include:
Lighting
Refrigeration
Kitchen circuits
HVAC equipment
Sump pumps
Water pumps
Garage circuits
Outlets
Essential household equipment
Not every connected load should necessarily operate simultaneously from generator power. Proper load calculation and management are essential to prevent overloading the standby generator.
NEMA 1 Indoor Enclosure
The transfer switch uses a NEMA 1 enclosure, which is intended primarily for indoor installation.
A NEMA 1 enclosure provides protection against accidental contact with electrical components and helps protect the equipment from ordinary indoor environmental conditions.
This model should not be treated as an outdoor-rated enclosure. Follow the manufacturer's installation requirements regarding location, mounting, accessibility, and environmental conditions.
UL Listed – Not CUL
This configuration is identified as UL listed and not CUL listed.
The distinction is important for installations where product certification requirements are specified by the local authority having jurisdiction. Before purchasing or installing the unit, verify that its certification is acceptable for the intended location and application.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Generac |
| Product Type | Automatic Transfer Switch with Integrated Load Center |
| Rated Current | 200 A |
| Circuit Capacity | 42 Circuits |
| Service Rating | Service Entrance Rated |
| Enclosure Type | NEMA 1 |
| Installation | Indoor |
| Transfer Type | Automatic |
| Certification | UL Listed |
| CUL Listed | No |
| Application | Residential Standby Generator Systems |
| Load Center | Integrated |
| Generator Compatibility | Compatible Generac Standby Generators |
Specification note: Exact electrical details such as system voltage, phase, interrupting rating, breaker compatibility, wire range, enclosure dimensions, weight, neutral configuration, grounding requirements, generator controller compatibility, and warranty should be verified against the exact Generac part number and installation documentation.
Benefits at a Glance
200-Amp Service Capacity
Designed for residential electrical services using a 200-amp service rating.
42-Circuit Load Center
Provides centralized branch-circuit distribution and organization within the transfer-switch enclosure.
Automatic Transfer
Switches compatible loads between utility and standby-generator power without requiring manual intervention.
Service Entrance Rated
Designed for applications where the transfer switch serves as part of the service equipment.
Indoor NEMA 1 Enclosure
Provides an enclosure configuration intended for protected indoor electrical installations.
UL Listed
Provides UL certification for the applicable product configuration; this model is specifically identified as not CUL listed.
Typical Applications
The Generac 200A 42-circuit SE ATS can be used in residential standby-power installations where multiple household circuits need to be connected to a compatible generator.
Potential applications include:
Whole-home or partial-home backup systems
New residential construction
Generator upgrades
Emergency power installations
Homes with multiple essential circuits
Electrical-service modernization
The final circuit selection should be determined by the generator's capacity and the home's electrical load requirements.
Installation Considerations
This transfer switch is part of a building's electrical distribution system and should be installed by a qualified electrician.
Before installation, verify:
Generator and ATS compatibility.
Service voltage and phase.
200-amp service configuration.
Required circuit-breaker types.
Available circuit capacity.
Conductor and conduit requirements.
Grounding and bonding requirements.
Service-disconnect requirements.
Local electrical-code requirements.
UL certification requirements for the installation location.
The NEMA 1 enclosure is intended for indoor use, so the installation location must provide an appropriate protected environment.
Safe and Reliable Backup Power
A properly installed automatic transfer switch helps ensure that utility and generator sources are not improperly connected at the same time. This is critical for protecting equipment, utility personnel, and occupants.
Never attempt to modify the transfer switch, bypass its safety features, or perform energized electrical work without the appropriate qualifications and procedures.
A Centralized Generator Transfer Solution
The Generac 200 Amp 42-Circuit Load Center Automatic Transfer Switch SE ATS – NEMA 1 UL (Not CUL) combines automatic generator transfer with an integrated 42-circuit load center in a single indoor enclosure.
Its 200-amp service-entrance rating, automatic transfer operation, 42-circuit capacity, NEMA 1 enclosure, and UL-listed configuration make it a practical choice for compatible residential standby-generator installations where centralized circuit management is required.