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
Not sure if this fits?
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. Ships via calculated freight — shipping shown at checkout (heavy/hazmat item). 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?+
Low cost ground shipping — calculated at checkout (batteries, transfer switches and oversized items). Most leave the warehouse in 2–4 business days.
What's the return policy?+
30-day returns on unused parts and accessories in original packaging.
Fast nationwide shipping
Low cost ground shipping — calculated at checkout. Most items leave the warehouse in 2–4 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.
Genuine Generac part
Sold and shipped as a genuine Generac OEM part from a factory-authorized dealer. 30-day returns on unused parts in original packaging.