--- product_id: 85431293 title: "Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated" brand: "generac" price: "NZ$2580" currency: NZD in_stock: true category: "Generac" url: https://www.desertcart.nz/products/85431293-generac-100-amp-legacy-automatic-generator-transfer-switch-se-rated store_origin: NZ region: New Zealand --- # 100 Amp full panel support Automatic outage sensing & transfer Open transition for safe backfeed prevention Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated **Brand:** generac **Price:** NZ$2580 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your peace of mind—automate your whole home backup like a pro! ## Quick Answers - **What is this?** Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated by generac - **How much does it cost?** NZ$2580 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/85431293-generac-100-amp-legacy-automatic-generator-transfer-switch-se-rated) ## Best For - generac enthusiasts ## Why This Product - Trusted generac brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety-First Switching:** Open transition design ensures zero backfeed risk, keeping your home and utility workers safe. - • **Instant Automatic Transfer:** Detects outages and switches power without lifting a finger—bye-bye manual breaker flipping. - • **Rugged Weatherproof Design:** NEMA 3R powder-coated aluminum enclosure stands strong against outdoor elements for reliable year-round performance. - • **Smart HVAC Load Management:** Built-in Smart AC Module sequences up to 4 HVAC loads automatically, optimizing energy use without extra gear. - • **Whole-Home Power Protection:** Seamlessly backs up your entire 120V & 240V panel up to 24,000 watts—no circuit left behind. ## Overview The Generac 100 Amp Legacy Automatic Generator Transfer Switch is a service entrance rated, automatic transfer switch designed for whole-home backup with compatible Generac standby generators. It supports up to 24,000 watts across 120V and 240V circuits, automatically sensing outages and transferring power safely with open transition switching to prevent backfeed. Featuring a built-in Smart AC Module for HVAC load sequencing and a durable NEMA 3R aluminum enclosure, it requires professional installation and is backed by a 5-year warranty. ## Description The Generac RXSW100A3 is a 100-amp, service entrance rated automatic transfer switch for whole-home backup with a compatible Generac standby generator. Unlike an interlock kit that requires manually flipping breakers, this switch senses an outage, starts your generator, and transfers your entire panel automatically, then reverts once utility power returns. Because it's rated for full 100-amp service, this switch works differently than smaller manual switches sized at 30 or 50 amps for a handful of circuits. It supports your whole panel, up to 24,000 watts across 120V and 240V circuits, covering major loads like well pumps, dryers, and central air along with your refrigerator; actual refrigerator runtime depends on your generator's fuel supply, not the switch itself. Open-transition switching mechanically prevents utility and generator power from connecting simultaneously, protecting line workers and your wiring from backfeed. This switch pairs with Generac standby generators using a floating neutral and an Evolution or Nexus controller. It is not designed for portable generators from other brands or units with a permanently bonded neutral, so confirm your generator's specifications first. The built-in Smart AC Module sequences up to 4 HVAC loads with no extra hardware, and optional Smart Management Modules add more circuit control as your needs grow, rather than locking you into a fixed circuit count. GFCI and AFCI compatibility depends on your panel's configuration; check with your electrician for your specific setup. Since this switch serves as your main service disconnect, installation requires a licensed electrician and permit in most areas; this is not a DIY project. The NEMA 3R aluminum enclosure has a powder-coated finish for corrosion resistance and needs roughly 20 inches of height and 15 inches of width beside your main panel. The kit ships with the transfer switch enclosure, contactor, Smart AC Module, and owner's manual, backed by a 5-year limited warranty. The power inlet box, cord, and generator are sold separately. ## Features - AUTOMATIC WHOLE-HOME BACKUP ACTIVATES THE MOMENT UTILITY POWER FAILS: senses an outage, starts your compatible Generac generator, and transfers your entire panel automatically, unlike a manual interlock kit requiring hands-on action every time - OPEN TRANSITION SWITCHING PREVENTS BACKFEED INTO THE UTILITY GRID: mechanically isolates utility and generator power so both can never connect at once, protecting line workers and your wiring while your panel switches sources safely - 100 AMP SERVICE RATING SUPPORTS YOUR FULL 120V AND 240V PANEL: handles up to 24000 watts across your entire home, including 240V loads like well pumps and dryers, so you back up the whole panel instead of a limited set of circuits - BUILT IN SMART AC MODULE MANAGES UP TO 4 HVAC LOADS AUTOMATICALLY: sequences up to four air conditioning or heating loads without extra hardware, and optional Smart Management Modules add circuit control as your needs grow - NEMA 3R ALUMINUM ENCLOSURE WITHSTANDS OUTDOOR WEATHER EXPOSURE: powder-coated aluminum housing resists corrosion and moisture for reliable performance whether mounted outdoors or in a garage near your main panel - DESIGNED FOR GENERAC STANDBY GENERATORS WITH EVOLUTION OR NEXUS CONTROLS: this switch is engineered specifically for Generac home standby generators, not portable units from other brands, so confirm your generator's controller before ordering - SERVICE ENTRANCE RATING MEANS A LICENSED ELECTRICIAN MUST INSTALL IT: functions as your main service disconnect and ties directly into utility service, so local code requires a licensed electrician and permit for this installation - WHATS INCLUDED COVERS THE SWITCH MECHANISM, NOT THE INLET OR CORD: ships with the transfer switch enclosure, contactor, Smart AC Module, and owner's manual, backed by a 5 year limited warranty, generator and inlet materials sold separately ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B077KPNPQ8 | | Actuator Type | Rotary | | Best Sellers Rank | #52,642 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #28 in Outdoor Generator Transfer Switches | | Brand Name | Generac | | Circuit Type | Parallel | | Color | No Finish | | Compatible Devices | Generac standby generators with Evolution or Nexus controls | | Connectivity Protocol | X-10 | | Connector Type | Screw Terminals | | Contact Material | Aluminum | | Contact Type | Electronic | | Control Method | Touch | | Current Rating | 100 A | | Customer Reviews | 4.9 4.9 out of 5 stars (32) | | Global Trade Identification Number | 00696471069648 | | Included Components | (1) transfer switch, owner's manual, warranty sheet | | International Protection Rating | IP54 | | Item Dimensions | 14.6 x 7.09 x 20 inches | | Item Type Name | RXSW100A3 TS | | Item Weight | 21.9 pounds | | Manufacturer | Generac Guardian | | Material Type | Aluminum | | Model | RXSW100A3 | | Mounting Type | Panel Mount | | Number of Items | 1 | | Number of Positions | 100 | | Operating Voltage | 240 volts | | Operation Mode | Automatic,Automatically | | Part Number | RXSW100A3 | | Specification Met | UL | | Switch Type | Automatic | | Terminal | Physical | | UPC | 696471069648 | | Unit Count | 1 Count | | Wattage | 24000 watts | ## Product Details - **Brand:** Generac - **Connector Type:** Screw Terminals - **Contact Type:** Electronic - **Current Rating:** 100 A - **Item dimensions L x W x H:** 14.6 x 7.09 x 20 inches - **Material:** Aluminum - **Operating Voltage:** 240 volts - **Operation Mode:** Automatic,Automatically - **Switch Type:** Automatic - **Terminal:** Physical ## Images ![Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated - Image 1](https://m.media-amazon.com/images/I/41SMq6+CW0L.jpg) ![Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated - Image 2](https://m.media-amazon.com/images/I/51beWkbM0QL.jpg) ![Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated - Image 3](https://m.media-amazon.com/images/I/41Stt5cGFdL.jpg) ![Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated - Image 4](https://m.media-amazon.com/images/I/510twAwtsEL.jpg) ![Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated - Image 5](https://m.media-amazon.com/images/I/41WHPXh+okL.jpg) ## Available Options This product comes in different **Pattern, Style** options. ## Frequently Bought Together - Generac 100 Amp Single Phase Generator Automatic Transfer Switch - Service Entrance Rated - NEMA 3R Outdoor Rated Aluminum Enclosure - Power Management for Indoor and Outdoor Use - Generac 7000 50 Amp Load Manager - Efficient Load Prioritization and Wire-Free Technology for Reliable Power Management - Lock-Feature and LED Status Display for Convenient Operation - Gray - Square D by Schneider Electric HOM2175SB Homeline SurgeBreaker, Surge Protection Device, 25kA, 120/240V, 1-Phase, 3-Wire --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/85431293-generac-100-amp-legacy-automatic-generator-transfer-switch-se-rated](https://www.desertcart.nz/products/85431293-generac-100-amp-legacy-automatic-generator-transfer-switch-se-rated) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-09-09*