GENERAC RTSN800G3 RTSN800G3 - ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$10,074.20
GENERAC RTSN800G3 RTSN800G3 - 800 Amp Transfer Switch 120/208 3Ø NEMA 3R CUL

GENERAC RTSN800G3 RTSN800G3 - 800 Amp Transfer Switch 120/208 3Ø NEMA 3R CUL

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Model: RTSN800G3
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$10,074.20
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RTSN800G3 - 800 Amp Transfer Switch 120/208 3Ø NEMA 3R CUL

  • Certifications and Standards

    • UL Listed

  • Features

    • Three-phase, 120/208-volt; cUL listed
    • 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
    • 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
    • Designed for use with three-phase generators 150-kw and below
    • RTSN800G3
    • The Heavy Duty Generac Contactor is a cUL recognized device, designed for years of service

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 RTSN800G3 – Frequently Asked Questions

1) Can the Generac RTSN800G3 transfer switch be mounted outdoors?
Yes. The RTSN800G3 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-adjacent mounting alongside the generator. Aluminum construction also keeps it from rusting out in coastal or wet locations.
2) Will the Generac RTSN800G3 work on a single-phase 120/240 service?
No. The RTSN800G3 is a three-phase switch built for 120/208-volt service. On a single-phase 120/240-volt residential or light commercial service you need a single-phase Generac RTS-series switch instead.
3) What size generator can the Generac RTSN800G3 be paired with?
It is designed for use with three-phase Generac generators rated 150 kW and below. If the standby set on the job is larger than 150 kW three-phase, this is not the right switch for it.
4) Do I need extra hardware to shed HVAC loads with the Generac RTSN800G3?
No added hardware for the first four. Generac's Digital Power Management lets the RTSN800G3 control up to four individual 24 VAC-controlled HVAC loads on its own. Add Generac Smart Management Modules and the total climbs to eight managed loads, which is how you keep a smaller standby set from being oversized for the building.
5) How much wall space and clearance does the RTSN800G3 transfer switch need?
Plan for a cabinet measuring 52 in high, 25 in wide and 17 in deep. At 130 lbs it is a two-person lift, and the depth means it will stand proud of most exterior walls, so check the walkway clearance in front of the enclosure before you set the anchors.
6) Is the Generac RTSN800G3 UL listed for a commercial installation?
The RTSN800G3 is UL Listed and cUL listed, and the heavy duty Generac contactor inside it is a cUL recognized device. That covers inspection in both US and Canadian jurisdictions.
7) What comes in the box with the Generac RTSN800G3?
The shipment is the transfer switch itself with its mounting hardware, plus installation instructions. Conductors, conduit, breakers and any Smart Management Modules for extra load shedding are ordered separately.
8) Is the Generac RTSN800G3 made in the USA for Buy American specs?
Country of origin on the RTSN800G3 is the United States, which is the line most institutional and government specs are checking. No sale or shipping restrictions are flagged on it.
9) What is the exact part number to order this Generac three-phase NEMA 3R transfer switch?
Order it as Generac RTSN800G3. That is both the model and the manufacturer part number, so a distributor cross-reference on RTSN800G3 lands on the 120/208-volt three-phase NEMA 3R unit and nothing adjacent.
How fast can I get the Generac RTSN800G3 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 RTSN800G3 come with a warranty?
Absolutely. The Generac RTSN800G3 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 RTSN800G3?
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 RTSN800G3 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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