GENERAC RTSW100G3 RTSW100G3 - ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,326.94
GENERAC RTSW100G3 RTSW100G3 - 100 Amp Service Rated 120/208 3Ø NEMA 3R

GENERAC RTSW100G3 RTSW100G3 - 100 Amp Service Rated 120/208 3Ø NEMA 3R

(No reviews yet) Write a Review

Model: RTSW100G3
Selected Model is

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

$3,326.94
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like
RTSW100G3 - 100 Amp Service Rated 120/208 3Ø NEMA 3R

  • Features

    • The controller at the generator handles all the timing, sensing, exercising functions, and transfer commands
    • Service rated (RTSW) Generac Automatic Transfer Switches are housed in an aluminum NEMA/UL Type 3R enclosure with electrostatically applied powder coating
    • The Heavy Duty Generac Contactor is UL recognized device, designed for years of service
    • Five year limited warranty
    • 100 Amp Service Rated 120/208 3Ø


RTSW100G3 - spec sheet

Manufacturer Resources

Product Specs

Assembled Depth:
10.06 in
Assembled Height:
48 in
Assembled Weight:
50 lbs
Assembled Width:
21.82 in
Country Of Origin:
United States
Manufacturer Warranty:
5 year limited
Restrictions:
No
Department:
Electrical
Product Group:
Power Distribution
Product Subgroup:
Transfer Switch

Generac RTSW100G3 – Frequently Asked Questions

1) Can the Generac RTSW100G3 be installed outdoors?
Yes. The RTSW100G3 transfer switch comes in an aluminum NEMA/UL Type 3R enclosure with electrostatically applied powder coat, so it is rated for outdoor, rain-tight mounting on an exterior wall next to the meter or the generator.
2) What does "service rated" mean on the Generac RTSW100G3, and do I still need a separate main breaker?
Service rated means the switch is listed for use as service equipment, so it can be installed directly downstream of the meter and act as the service disconnect instead of adding a separate main disconnect ahead of the panel. That is the main difference between the RTSW service-rated line and a standard load-side automatic transfer switch, which must be fed from an existing main. Local inspection practice still governs the final arrangement.
3) Does the Generac RTSW100G3 transfer switch have its own controller, or does the generator run it?
The generator's controller does the work. All timing, utility sensing, weekly exercise, and transfer commands are handled at the generator, and the RTSW100G3 contains the contactor and switching gear. That means you are wiring control conductors between the generator and the switch, and the generator has to be a Generac unit with a compatible controller for the system to function as an automatic transfer.
4) How much wall space do I need for the Generac 100 amp service rated transfer switch?
Plan for an enclosure 48 inches high, 21.82 inches wide, and 10.06 inches deep. At 48 inches tall it is a full-height cabinet, not a small load-center-sized box, so check the wall run between the meter and any obstruction before you set it. It weighs 50 pounds, which is a two-person lift to get onto the mounting hardware.
5) Can I use the RTSW100G3 on a 100 amp three-phase panel if my generator is larger than 100 amps of output?
The switch is rated 100 amps, and that rating is the ceiling for both the utility and generator sides regardless of how much the generator can produce. If your standby set delivers more than 100 amps at 120/208 three-phase and you want full output available to the load, you need a higher-amperage transfer switch. Sizing the switch to the service, not just to the generator, is the usual decision point here.
6) Is the switching mechanism in the RTSW100G3 a contactor or a breaker-type mechanism?
It uses a Generac heavy duty contactor, a UL recognized device built for repeated transfer duty. For a facility that will see frequent utility dips and exercise cycles, that contactor is the wear item to know about when you spec spare parts.
How fast can I get the Generac RTSW100G3 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 RTSW100G3 come with a warranty?
Absolutely. The Generac RTSW100G3 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 RTSW100G3?
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 RTSW100G3 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.
!