GENERAC RTSN800J3 RTSN800J3 - ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$10,074.20
GENERAC RTSN800J3 RTSN800J3 - 800 Amp Tranfser Switch 120/240 3Ø NEMA 3R CUL

GENERAC RTSN800J3 RTSN800J3 - 800 Amp Tranfser Switch 120/240 3Ø NEMA 3R CUL

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Model: RTSN800J3
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$10,074.20
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RTSN800J3 - 800 Amp Tranfser Switch 120/240 3Ø NEMA 3R CUL

  • Certifications and Standards

    • UL Listed

  • Features

    • 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
    • Three-phase, 120/240-volt; cUL listed
    • Generac Automatic Transfer Switches are housed in an aluminum NEMA/UL Type 3R enclosure, with electrostatically applied and baked powder paint
    • The Heavy Duty Generac Contactor is a cUL recognized device, designed for years of service
    • Designed for use with three-phase generators 150-kw and below
    • RTSN800J3
    • 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

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 RTSN800J3 – Frequently Asked Questions

1) What size generator does the Generac RTSN800J3 work with?
It is built for three-phase generators of 150 kW and below, running 120/240-volt three-phase. If your set is single-phase, or above 150 kW three-phase, this is not the right switch.
2) Do I need extra hardware to load-shed HVAC with a Generac RTSN800J3?
Not for HVAC. Digital Power Technology built into the switch manages up to 4 individual 24 VAC controlled HVAC loads with no additional hardware. To go further, pair it with Generac Smart Management Modules and up to 8 loads total can be managed.
3) Is the Generac RTSN800J3 an automatic transfer switch or a manual one?
Automatic. It is part of Generac's automatic transfer switch line, using a heavy duty Generac contactor to move the load between utility and generator without anyone on site. That matters for unattended facilities where a manual switch would leave the building dark until someone drives out.
4) How much space and what lifting do I need to plan for a Generac RTSN800J3 install?
Plan for a unit measuring 52 in high, 25 in wide and 17 in deep, weighing 130 lbs. That is a two-person lift or a mechanical assist for wall mounting, plus working clearance in front per your local electrical code.
5) Is the Generac RTSN800J3 transfer switch UL listed for Canadian jobs?
It is UL Listed and cUL listed, and the heavy duty Generac contactor inside is a cUL recognized device, so it can be specified on Canadian as well as US projects.
6) Does the Generac RTSN800J3 come with installation instructions, and what is the exact part number to order?
Order it as Generac model RTSN800J3, the manufacturer part number. Installation instructions ship with the unit. It is made in the United States and carries no shipping restrictions.
How fast can I get the Generac RTSN800J3 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 RTSN800J3 come with a warranty?
Absolutely. The Generac RTSN800J3 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 RTSN800J3?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Generac RTSN800J3 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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