RTSN600K3 - 600 Amp Transfer Switch 277/480 3Ø NEMA 3R CUL
Certifications and Standards
- UL Listed
Features
- Digital Power Technology (DPM) allows these switches to have the capability to manage up to 4 individual HVAC (24 VAC controlled) loads with no additional hardware
- Generac Automatic Transfer Switches are housed in an aluminum NEMA/UL Type 3R enclosure, with electrostatically applied and baked powder paint
- Designed for use with three-phase generators 150-kw and below
- Three-phase, 277/480-volt; cUL listed
- RTSN600K3
- The Heavy Duty Generac Contactor is a cUL recognized device, designed for years of service
- When used in tandem with Smart Management Modules, up to 8 loads can be managed as well, providing the most installation efficient power management options available
Manufacturer Resources
Product Specs
- Amperage:
- 400 A
- Assembled Weight:
- 130 lbs
- Color Finish:
- Grey
- Country Of Origin:
- United States
- Installation Hardware Included:
- transfer switch
- Installation Instructions Included:
- Yes
- Manufacturer Warranty:
- 5 year limited
- Maximum Generator Input:
- 48000 W
- Overall Depth:
- 17 in
- Overall Height:
- 52 in
- Overall Width:
- 25 in
- Restrictions:
- No
- Department:
- Electrical
- Product Group:
- Power Distribution
- Product Subgroup:
- Transfer Switch
- Product Voltage:
- 120 V
- Product Material:
- Aluminum
- Product Weight:
- 130 lbs
Generac RTSN600K3 – Frequently Asked Questions
1) Can the Generac RTSN600K3 transfer switch be mounted outdoors?
Yes. The RTSN600K3 comes in an aluminum NEMA/UL Type 3R enclosure with electrostatically applied, baked powder paint in grey, so it is rated for outdoor wall or pad mounting next to the generator or service entrance. The aluminum housing also helps in coastal or damp locations where a painted steel box corrodes.
2) What size generator does the Generac RTSN600K3 automatic transfer switch work with?
It is built for three-phase generators of 150 kW and below, on a 277/480 volt three-phase system. If your standby set is single-phase, or runs 208/120 three-phase, this is the wrong switch for the job.
3) Does the Generac RTSN600K3 handle load shedding, or do I need separate load management modules?
Load management is built in. Generac's Digital Power Technology lets the switch control up to four individual HVAC loads that are 24 VAC controlled, with no extra hardware in the panel. If the building needs more than that, adding Smart Management Modules brings it to eight managed loads. For a contractor sizing a smaller generator against a larger service, that shedding capability is often what makes the install work.
4) How much wall space and support do I need for the Generac RTSN600K3 transfer switch?
Plan for an enclosure measuring 52 inches high, 25 inches wide and 17 inches deep, weighing 130 lbs. That weight means unistrut or a proper backboard rather than drywall anchors, and two people to set it. Leave working clearance in front per your local electrical code for a switch at this voltage.
5) What comes in the box with the Generac RTSN600K3, and what will I still have to supply?
You get the transfer switch itself with its mounting hardware and installation instructions. Conductors, conduit, breakers, the generator control wiring harness run, and any Smart Management Modules for extra load shedding are separate. The unit is made in the United States.
6) Is the RTSN600K3 an automatic transfer switch or a manual one?
Automatic. It is a Generac automatic transfer switch built around a heavy duty contactor, so it senses the utility outage, signals the generator to start, and transfers the load without anyone on site. That is the difference from a manual transfer switch, which needs someone to throw it, and it is why this type is specified for unattended facilities like lift stations, clinics and telecom sites.
How fast can I get the Generac RTSN600K3 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Generac RTSN600K3 come with a warranty?
Absolutely. The Generac RTSN600K3 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Generac RTSN600K3?
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