Tigo ATS 200A Automatic Transfer Switch | Whole-Home Backup for Tigo EI Energy Storage Systems

Product Overview

The Tigo Automatic Transfer Switch (ATS) is a required component of any Tigo EI Residential Solar + Energy Storage System (ESS). Designed for grid-tied applications, the ATS continuously monitors utility power and automatically transitions the home to solar and battery backup during a grid outage.

When utility power is restored, the Tigo ATS safely reconnects the system to the grid, ensuring seamless operation without homeowner intervention. Engineered for reliability, safety, and simplified installation, the Tigo ATS enables whole-home or essential-load backup when paired with Tigo EI Hybrid Inverters and Tigo batteries.

Key Features & Benefits

• Required for Tigo EI ESS Systems – Essential for grid-tied energy storage operation
• Automatic Backup Switching – Instantly switches to solar/battery power during outages
• Whole-Home or Essential-Load Backup – Flexible system design options
• Integrated Monitoring – Full system visibility via the Tigo EI mobile app and online portal
• Reduces Panel Upgrades & Derating – Integrated service disconnects on 200A models
• Manual Bypass Switch – Allows manual operation and servicing when needed
• Installer-Friendly Design – Simplifies wiring and commissioning
• Outdoor-Rated Enclosure – NEMA 4X / IP65 for indoor or outdoor installations

Technical Specifications

• Output Voltage: 120 / 240 VAC Split-Phase
• Transfer Type: Automatic
• Manual Bypass: Yes
• Enclosure Rating: NEMA 4X / IP65 (dust-tight and water-tight)
• Panelboards:
  • 200A Models: Main Circuit Breaker (MCB)
  • 50A Model: Main Lug Only (MLO)

System Compatibility

• Required for Tigo EI Residential Energy Storage Systems
• Compatible with Tigo EI Hybrid Inverters
• Enables backup operation with Tigo EI Batteries
• Supports both whole-home and essential-load configurations

Installation & Commissioning

The Tigo 200A MCB Automatic Transfer Switch is engineered for fast, straightforward installation. Its integrated disconnects and smart layout reduce electrical complexity, helping installers save time while minimizing the need for main panel upgrades. Commissioning and system monitoring are handled seamlessly through the Tigo EI App.

Why Choose the Tigo ATS?

The Tigo ATS delivers safe, automatic, and intelligent backup power control, without the complexity of traditional transfer switch setups. Designed specifically for the Tigo EI ecosystem, it ensures reliable backup operation, cleaner installations, and full system visibility for homeowners and installers alike.

Ideal Applications

• Residential solar + battery backup systems
• Whole-home backup installations
• Essential-load backup configurations
• New Tigo EI system deployments
  

Warranty: 11 Years

Spec Sheet: Download

Manual: Download

Quick Start Guide: Download