Tigo EI Automatic Transfer Switch (ATS) — 200A | TSS-200-US

Keep the lights on automatically. The Tigo EI Automatic Transfer Switch (ATS) TSS-200-US  routes power between the utility grid and your Tigo EI backup system the moment an outage is detected—delivering seamless 120/240V split-phase whole-home or essential-loads backup in a rugged, outdoor-rated enclosure.

Why it’s great (at a glance)

• Fast, automatic switchover during grid outages to maintain uninterrupted power.

• 200A service-rated ATS sized for typical U.S. residential main panels and essential-loads subpanels.

• 120/240V split-phase compatibility for common household circuits and appliances.

• Integrated transformer to streamline voltage management and enhance reliability.

• NEMA 4X, IP65 enclosure for indoor or outdoor installs—resists dust, rain, and corrosion.

• Manual bypass switch for maintenance or emergency scenarios.

• Tested to leading safety standards, including UL 1741.

Ideal use cases

• Whole-home or essential-loads backup with the Tigo EI Inverter and EI Battery.

• Grid-tied energy storage systems requiring automatic utility/backup transfer.

• New installs or retrofits where outdoor-rated, 200A service equipment is preferred.

Specifications

Model: TSS-200-US

Part Number: 604-00200-20

Service Rating: 200A

Maximum Continuous Input Current: 48A

Rated Power: 11,400W

Peak Power: 48,000W

Output Voltage: 120/240V split-phase

Enclosure Rating: IP65 / NEMA 4X (indoor/outdoor)

Dimensions (H × W × D): 17.9 × 21.6 × 9.6 in

Weight: 65 lb (29.5 kg)

Certifications: UL 1741, UL 869A, CSA C22.2 No. 107.1, CSA C22.2 No. 0.19

Compatibility notes

• Designed for Tigo EI energy storage systems (EI Inverter + EI Battery).

• 200A service-rated enclosure pairs well with standard residential mains; confirm panel and conductor sizing per NEC/local code.

• The “Maximum Continuous Input Current: 48A” reflects the continuous source input rating—verify circuit sizing and backup load calculations with your electrician.

Our Michigan-based phone support connects you directly with a live, knowledgeable representative. We are committed to providing prompt and personalized assistance, ensuring your inquiries are addressed efficiently by professionals who prioritize your needs and value your time.