Generac 9930 200A Non-Service-Entrance Automatic Transfer Switch (NEMA 3R)
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At a glance
- Amperage
- 200 Amps
- Voltage/Phase
- 120/240V, single-phase
- Service Entrance Rated
- No (Non-Service Entrance Rated)
- Enclosure
- NEMA 3R powder-coated aluminum (indoor/outdoor)
- Transition Type
- Open transition, automatic
- Listings
- cETLus (ETL-recognized contactor)
- Withstand Rating
- 10,000 Amps
- Lug Range
- 250 MCM - #6
- Dimensions
- 26.8 in H (30.0 in overall) x 13.5 in W x 6.3 in D
- Weight
- 30.0 lbs (13.6 kg)
- Warranty
- 5-year limited
Why this generator
- Whole-house 200-amp automatic transfer switching between utility and generator power - no manual intervention needed during an outage
- Rugged NEMA 3R powder-coated aluminum enclosure rated for indoor or outdoor installation, protecting against rain, snow, ice, and debris
- Heavy-duty ETL-recognized Generac contactor with a 10,000-amp withstand rating, built for years of reliable service
- Hardened transfer switch control designed to ride through harmful utility disturbances like brownouts
- Pairs with Generac single-phase generators using Evolution, Power Zone 200, or Power Zone 410 controllers, which handle all timing, sensing, and exercise functions
- Installer fast-mount hanging system speeds installation, and the switch can be operated manually even without power applied - backed by a 5-year limited warranty
Everything you need to know
Generac 9930 200a non-service-entrance automatic transfer switch (NEMA 3R enclosure). 120/240V single-phase, designed to pair with Generac air-cooled home standby generators.
Genuine Generac unit from a factory-authorized dealer. Free shipping to the lower 48. Professional installation available in NC & SC.
Frequently asked questions
Is this a genuine OEM part?+
Yes — sold and shipped as a genuine Generac part from a factory-authorized dealer.
Will it fit my unit?+
Check your model and year — message us with that info and we'll confirm fit before you order.
How fast does it ship?+
Free shipping to the lower 48. Most accessories and parts ship within 2–4 business days.
What's the return policy?+
30-day returns on unused parts and accessories in original packaging.
Free curbside shipping
Liftgate delivery to the lower 48. Most orders leave the warehouse in 3–5 business days.
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Real Cummins warranty
Full 5-year / 2,000-hour limited warranty — registered and supported through Cummins directly.