Tigo TSI-11.4K-US (601-2111K4-0003) EI Inverter
Hybrid, 11.4kW, 240/208VAC, 600VDC, 4 MPPT Inputs, Built-in Wi-Fi, RS-485, PVRSS with TS4-A-F/2F, TS4-A-O/S, 200A ATS, AFCI Protection, NEMA 4X/IP65
Item # 1420-001
Price: $2,606.00
| This item ships free within the 48 contiguous states. |
Tigo TSI-11.4K-US (601-2111K4-0003) EI Inverter, Hybrid, 11.4kW, 240/208VAC, 600VDC, 4 MPPT Inputs, Built-in Wi-Fi, RS-485, PVRSS with TS4-A-F/2F, TS4-A-O/S, 200A ATS, AFCI Protection, NEMA 4X/IP65
The Tigo TSI-11.4K-US (601-2111K4-0003) is an 11.4 kW hybrid, storage-ready inverter designed for high-performance residential solar systems in the U.S., offering 200% DC oversizing, multiple MPPTs, built-in communications, and seamless integration with the Tigo Energy Intelligence (EI) platform. Engineered for both new and retrofit installations, it functions as a hybrid inverter, supporting solar generation, battery storage, backup power, and advanced module-level monitoring when paired with Tigo TS4 MLPE. Its flexible AC/DC-coupled architecture makes it ideal for homeowners who want resilience, high efficiency, and future-ready storage capability.
Features
- Storage-ready ‘hybrid’ inverter
- Up to 200% DC oversizing (2:1 DC/AC ratio)
- 80V starting voltage
- Multiple MPPTs (3 and 4)
- Compatible with 208V or 240V service
- Includes a revenue grade meter (RGM)
- Built in Wi-Fi and Cellular communication (optional)
- Lightweight (32 lb/45 lb)
- <10 mins commission with EI App (incl. Tigo TS4)
Tigo EI Residential Solution - Technical Overview
Tigo EI Inverter Specifications Overview
Tigo EI Inverter Installation Overview
- Generally all of our products are in stock and ready to ship within 2 business days.
- If an item you ordered is out of stock, we will contact you within 1 business day with an expected ship date. You will then have the option to accept the new ship date or cancel your order.
- Either way, we guarantee your card will never be charged until your order ships.

