Description
Generac 600A 3-Phase Automatic Transfer Switch – Model RTSN600J3
Built for larger residential and commercial systems, the Generac RTSN600J3 is a 600-amp, 3-phase automatic transfer switch designed to provide seamless power switching between utility and generator power. With a NEMA 3R rated enclosure and rugged open-transition design, it ensures dependable performance in demanding environments.
This switch supports 120/240V 3-phase applications and is UL listed for safety and performance. Compatible with Generac liquid-cooled generators, it offers durable construction, precise sensing, and fully automated operation.
Key Features:
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Fully Automatic Operation: Transfers between utility and generator power with no user intervention required.
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High Amp Capacity: Supports up to 600 amps — ideal for whole-building coverage and larger loads.
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3-Phase Compatibility: Rated for 120/240V three-phase power systems.
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Rugged Build: NEMA 3R rated aluminum enclosure allows for indoor or outdoor installation.
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Precise Sensing: Adjustable settings for line failure, generator Hz, under-voltage, and time delays.
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Manual Override: Allows for manual operation during service or emergencies.
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Lockable Cabinet: For added safety and security in commercial environments.
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UL Listed: Meets national safety standards for transfer equipment.
Product Specifications:
| Specification | Details |
|---|---|
| Model Number | RTSN600J3 |
| Amperage | 600 Amps |
| Voltage | 120/240V 3-Phase |
| Frequency | 60 Hz |
| Enclosure Rating | NEMA 3R (Outdoor Rated) |
| Enclosure Material | Aluminum |
| Transfer Style | Open Transition |
| Poles | 3 |
| Service Rated | No |
| UL Listed | Yes |
| Manual Override | Yes |
| Time Delay Functions | Transfer: 10s, Re-transfer: 15s, Cooldown: 60s |
| Exercise Cycle | 7-day Interval, 12 min duration |
| Compatible Generators | Generac QT & QTO Series (see below) |
| Product Dimensions (HxWxD) | 66″ x 36″ x 21″ |
| Weight | 353.5 lbs |
| Warranty | 5-Year Limited |









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