---
product_id: 69910086
title: "100-Amp Generator Transfer Switch, Automatic Smart Transfer Switch, 120/240V Single Phase, NEMA 3R Enclosure, Load Management Ready"
brand: "generac"
price: "$1127.14"
currency: USD
in_stock: true
reviews_count: 8
category: "Generac"
url: https://www.desertcart.us/products/69910086-100-amp-generator-transfer-switch-automatic-smart-transfer-switch-120
store_origin: US
region: United States of America
---

# 100A heavy-duty current capacity Smart load management with HVAC support NEMA 3R weather-resistant enclosure 100-Amp Generator Transfer Switch, Automatic Smart Transfer Switch, 120/240V Single Phase, NEMA 3R Enclosure, Load Management Ready

**Brand:** generac
**Price:** $1127.14
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your peace of mind with smart, seamless backup!

## Quick Answers

- **What is this?** 100-Amp Generator Transfer Switch, Automatic Smart Transfer Switch, 120/240V Single Phase, NEMA 3R Enclosure, Load Management Ready by generac
- **How much does it cost?** $1127.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/69910086-100-amp-generator-transfer-switch-automatic-smart-transfer-switch-120)

## 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

- • **Robust 100-Amp Capacity:** Handles up to 24,000 watts, ensuring reliable backup for your entire home or office setup.
- • **Weatherproof Durability:** NEMA 3R rated enclosure built to withstand harsh outdoor conditions, so your backup system stays protected rain or shine.
- • **Smart Load Management Ready:** Prevents overloads and intelligently manages up to 4 HVAC circuits—no extra hardware needed to optimize power use.
- • **Expandable Backup Power System:** Easily integrates with Generac Smart Management Modules to prioritize and expand your backup power as your needs grow.
- • **Seamless Automatic Power Transfer:** Effortlessly switches between utility and generator to keep your home powered without interruption.

## Overview

The Generac RXSC100A3 is a 100-amp automatic transfer switch designed for single-phase 120/240V standby generators. Featuring a weather-resistant NEMA 3R enclosure and heavy-duty stainless steel contacts, it ensures reliable automatic power transfer during outages. Its integrated smart load management supports up to 4 HVAC circuits without additional hardware and can be expanded with Generac Smart Management Modules for scalable whole-home backup solutions.

## Description

Generac RXSC100A3 is a 100A automatic generator transfer switch designed for single-phase 120/240V standby generator systems. It monitors utility power and automatically transfers the electrical load to the generator during an outage, then returns to utility when power is restored. Built in a NEMA 3R enclosure with a heavy-duty Generac contactor, it supports integrated load management and Smart Management expansion for optimized whole-home backup.

Review: Generac RXSC100A3 100 Amp 120/240 Single Phase NEMA 3R Smart Transfer Switch - I needed two Smart Transfer Switches to install my generator. "See my other review" I have two meters and I had to purchase an additional switch. The main Generac home generator came with a transfer switch but each meter required a switch. It's highly recommended that these units be professionally installed. My double meter installation worked perfect. These Generac products are well built and designed to function automatically as part of a total standby system.
Review: NON service rated - Exactly what you think it is but this is a NON service rated model. Which means it does not come with the interior dead cover. Pic is of page 9 in the transfer switches installation instructions. So don't be mad about no interior panel!

## Features

- AUTOMATIC SMART TRANSFER: Automatic power transfer between utility and standby generator for reliable home backup during outages
- ELECTRICAL SPECS: 100A single-phase 120/240V open-transition design built for Generac generators using Evolution or Power Zone 200 controllers
- WEATHER-RATED ENCLOSURE: NEMA 3R outdoor-rated enclosure with heavy-duty Generac contactor for durable weather-resistant performance
- LOAD MANAGEMENT: Smart power management helps prevent generator overload and supports load shedding for up to 4 HVAC circuits with no extra hardware
- EXPANDABLE SYSTEM: Expandable with Generac Smart Management Modules to prioritize additional loads as your backup power needs grow
- WHAT'S INCLUDED: Transfer switch enclosure with integrated controller and contactor plus installation and safety documentation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077KQNZM7 |
| Actuator Type | Rotary |
| Best Sellers Rank | #111,186 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #63 in Outdoor Generator Transfer Switches |
| Brand | Generac |
| Brand Name | Generac |
| Circuit Type | 4-way |
| Color | No Finish |
| Connectivity Protocol | X-10 |
| Connector Type | Plug In |
| Contact Material | Stainless Steel |
| Contact Type | Normally Closed |
| Control Method | Voice |
| Controller Type | Non-Service Rated |
| Current Rating | 100 Amps |
| Customer Reviews | 4.2 out of 5 stars 123 Reviews |
| Included Components | (1) transfer switch, owner's manual, warranty sheet |
| International Protection Rating | IP30 |
| Item Dimensions | 14.6 x 7.09 x 20 inches |
| Item Type Name | RXSC100A3 TS |
| Item Weight | 18.8 Pounds |
| Lower Temperature Rating | 1 Degrees Fahrenheit |
| Manufacturer | Generac Guardian |
| Material Type | Steel |
| Model | RXSC100A3 |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 120 Volts |
| Operation Mode | ON-NONE-OFF |
| Specification Met | UL |
| Switch Type | Automatic |
| Terminal | Screw |
| UPC | 696471069600 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 1 Degrees Fahrenheit |
| Wattage | 24000 watts |

## Product Details

- **Operation Mode:** ON-NONE-OFF
- **Current Rating:** 100 Amps
- **Operating Voltage:** 120 Volts
- **Contact Type:** Normally Closed
- **Connector Type:** Plug In
- **Brand:** Generac
- **Terminal:** Screw
- **Item dimensions L x W x H:** 14.6 x 7.09 x 20 inches
- **Circuit Type:** 4-way
- **Actuator Type:** Rotary

## Images

![100-Amp Generator Transfer Switch, Automatic Smart Transfer Switch, 120/240V Single Phase, NEMA 3R Enclosure, Load Management Ready - Image 1](https://m.media-amazon.com/images/I/61wENBpFQ5S.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Generac RXSC100A3 100 Amp 120/240 Single Phase NEMA 3R Smart Transfer Switch
*by J***R on January 30, 2020*

I needed two Smart Transfer Switches to install my generator. "See my other review" I have two meters and I had to purchase an additional switch. The main Generac home generator came with a transfer switch but each meter required a switch. It's highly recommended that these units be professionally installed. My double meter installation worked perfect. These Generac products are well built and designed to function automatically as part of a total standby system.

### ⭐⭐⭐⭐⭐ NON service rated
*by M***A on June 16, 2022*

Exactly what you think it is but this is a NON service rated model. Which means it does not come with the interior dead cover. Pic is of page 9 in the transfer switches installation instructions. So don't be mad about no interior panel!

### ⭐⭐⭐⭐⭐ no frills except internal battery charger
*by B***N on February 15, 2023*

I like the fact that there were only the switch and generator controls in the box, circuit breakers can be added by adding a separate Bracker panel, which i didn't need.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-13*