Growatt SYN 200-XH-US | Automatic Transfer Box | Generator Ready

Growatt SYN 200-XH-US-13A | 200 A Whole-Home Backup Smart Switch

Empower your solar-plus-storage system with Growatt’s SYN 200-XH-US—an outdoor-rated (NEMA 4X) automatic transfer switch that delivers lightning-fast, sub-0.5 s switchover from grid power to battery, keeping every circuit in your house online during outages. Designed for seamless integration with Growatt MIN TL-XH-US hybrid inverters, this 200 A smart switch brings utility-grade reliability and flexible energy management to new and existing microgrids.

Highlights & Key Benefits

• True Whole-Home Backup – Service-rated 200 A breaker handles full household loads, HVAC systems, and EV chargers.
• Split-Phase 120/240 V Output – Built-in transformer ensures stable voltage for American appliances without external hardware.
• Blazing-Fast Transfer (< 0.5 s) – Protect sensitive electronics and keep lights, servers, and security systems running without interruption.
• Rugged Outdoor Performance – IP65 / NEMA 4X enclosure, natural convection cooling, and –40 °F to 122 °F operating range conquer harsh climates.
• UL 1741 & FCC Class B Certified – Meets the latest safety and EMI standards for residential and small-commercial installations.
• Generator Support

Specification Snapshot

• Max Continuous Current: 200 A

• Nominal Output Voltage: 120/240 V split-phase (180–270 V L-L range)

• Frequency: 60 Hz

• On/Off grid mode switch time within 0.5s

• Communication: RS-485; remote control via Growatt Shine platform

• Dimensions / Weight: 17.5 × 21.7 × 6.3 in | 58.9 lb

Perfect Applications

• Grid-tied homes seeking instant, whole-house backup without sub-panel rewiring
  

• Small businesses that can’t afford downtime—clinics, farm operations, IT closets

• EV owners wanting uninterrupted level-2 charging even when the grid drops

Why Buy from Portable Sun LLC

• Michigan-based lifetime technical support from NABCEP-certified experts

• Competitive pricing, fast shipping, and price-match guarantee on all Growatt equipment

• Optional design services to size batteries, generators, and PV for your exact loads

Data Sheet: Download

Quick Guide: Download