Generac 9953 200A 1ph-120/240V Nema 3R Automatic Transfer Switch Features:
Generac 9953 200A Automatic Transfer Switch Features:
The Generac 9953 200A Automatic Transfer Switch is built for homeowners who need whole-house protection with one powerful, dependable unit. Rated at 200 amps, this single-phase 120/240V switch handles high electrical loads and seamlessly switches between utility power and generator power during outages. With the built-in Surge Protection Device, it safeguards sensitive electronics and circuits from damaging transient voltage events—bringing both backup power and surge defense together.
Designed for reliability, the 9953 comes in a NEMA 3R enclosure, making it suitable for outdoor or indoor mounting. The enclosure resists rain, snow, sleet, and debris, helping ensure longevity in harsh conditions. Its contactor and internal components are built to handle frequent switching—so when the power does drop, you can count on fast, safe transfer to your standby generator and then back again once utility power returns.
Ease of installation and compatibility are part of the package. The 9953 works with standard single-phase generator controllers and provides clear connection points, properly sized lugs, and torque values for conductors. It includes features aimed at simplifying wiring and mounting, helping reduce the time and effort required during installation. And with a full warranty backing, you get confidence not just in performance, but in peace of mind.
Key Features
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200 Amp automatic transfer switch for single-phase, 120/240V systems
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Integrated Surge Protection Device (SPD) to defend against voltage spikes and surges
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NEMA 3R rated enclosure—suitable for outdoor or indoor placement
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Designed for high duty-cycle switching; robust contactor and construction
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Clear wiring connections and appropriately sized lug terminals
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Open transition operation to safely switch between utility and generator power
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Compatible with standard standby generator controllers
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Built-in mechanism for smooth automatic reversion to utility power once restored
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Weather-resistant finish and enclosure for durability in harsh environments
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Backed by a warranty for reliability and service
