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Tigo 11.4kW 400V 208/240VAC Energy Storage Hybrid Inverter/Charger

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Manufacturer Warranty Included
SKU 601-2111K4-0003
Original price $2,680.13 - Original price $2,680.13
Original price
$2,680.13
$2,680.13 - $2,680.13
Current price $2,680.13
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Tigo 11.4kW 400V 208/240VAC  Energy Storage Hybrid Inverter/Charger

Description

The Tigo TSI-11.4K-US is a smart hybrid inverter engineered to orchestrate energy production, storage, and consumption for residential solar and battery systems.

Features:

  • Up to 200% DC Oversizing — Supports a 2:1 DC/AC ratio with 80V starting voltage for maximum solar harvest and system flexibility.
  • Built-In Wi-Fi & Energy Intelligence Platform — Powered by Tigo EI for seamless monitoring, optimization, and cellular backup communication.
  • NEC 690.12 Rapid Shutdown Compliant — Fully compatible with Tigo TS4 MLPE for module-level monitoring and rapid shutdown protection.
  • NEMA 4X/IP65 Enclosure — Rated for outdoor installation with natural convection cooling and operating range of -13°F to 140°F.
  • 152-Month Standard Warranty — Industry-leading coverage backed by a lightweight 45 lb. design and under 10-minute commissioning.

Designed for seamless integration with the Tigo EI Battery, this inverter delivers intelligent energy management for larger residential and light commercial solar systems. Compatible with the 200A ATS for automatic transfer switching.

Certified to UL1741:2021 Ed.3 and IEEE 1547:2018, the TSI-11.4K-US meets rigorous grid interconnection and safety standards. Listings include CA-CEC, CA Rule 21 CSIP, CA CPUC-SGIP, and Hawaii utility rules.

With a maximum efficiency of 98.5% and CEC efficiency of 98.0% at 240V, this inverter delivers top-tier energy conversion for demanding installations. A complete solution for installers requiring high-output, intelligent, code-compliant solar storage.

Product Specifications

Tigo 11.4kW 400V 208/240VAC  Energy Storage Hybrid Inverter/Charger Product Specifications

Specification Details
Model TSI-11.4K-US
Nominal Power Output 11400 W @ 240V / 9880 W @ 208V
Max. Apparent Power 11400 VA
Nominal AC Voltage 208V / 240V
Max. Output Current (Grid) 48A
Max. Output Current (Backup) 75A
Grid Frequency 50/60 Hz
Power Factor >0.99
THDI <3%
Max. Recommended PV Power 22800 W
MPPT Voltage Range 80V – 550V
Full-Load Voltage Range 220V – 500V
Number of MPPTs 4
PV Strings per MPPT 2
Max. Input Current (Imp/Isc) 13.5A / 16.9A
Nominal Battery DC Voltage 400V
I/O DC Current Up to 32.5A
I/O DC Power 11700W
Max. AC Backup Power 18000 VA
Max. Efficiency 98.5%
CEC Efficiency @ 240V / 208V 98.0% / 97.5%
Operating Temperature -13°F to 140°F (-25°C to 60°C)
Enclosure Rating NEMA 4X / IP65
Cooling Natural Convection
Dimensions (W x D x H) 15.8 x 7.4 x 25.2 in.
Weight 45.2 lbs
Altitude 9843 ft. (3000 m)
Communication Wi-Fi Standard, 4G Optional
Warranty 152 Months
Certifications UL1741:2021 Ed.3, IEEE 1547:2018, UL1699B, FCC Part 15B
Listings CA-CEC, CA Rule 21, CA CPUC-SGIP, Hawaii Rule 14H
Compatible ATS 200A ATS
Part Number 601-2111K4-0003

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