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Tigo 11.4K Hybrid Inverter

Tigo 11.4K Hybrid Inverter

Price: $2,550.64
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Price: $2,550.64
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Tigo EI Hybrid Inverter (TSI-11.4K-US)

The hybrid Tigo EI Inverter is the centerpiece of the Tigo Energy Intelligence (EI) solution. It intelligently orchestrates energy production and consumption when coupled with a Tigo EI Battery. Additionally, it enables advanced module-level monitoring, optimization, and rapid shutdown compliance when paired with Tigo TS4 MLPE (Module Level Power Electronics).

Key Features

  • High Performance: Up to 200% DC oversizing (2:1 DC/AC ratio) and a low 80 V starting voltage.

  • Flexible Design: Multiple MPPT options (2, 3, or 4 depending on the model) to optimize complex roof layouts.

  • Smart Platform: Fully powered by the Tigo Energy Intelligence platform for streamlined management.

  • Safety & Compliance: Full NEC 690.12 rapid shutdown compliance.

  • Connectivity: Built-in Wi-Fi with optional cellular communication for seamless data backup.

  • Rapid Commissioning: Under 10-minute setup (including Tigo TS4s) using the intuitive EI mobile app.

  • Built to Last: Lightweight design (32 to 45 lbs.) backed by a 152-month standard warranty.

Technical Specifications

Input (PV)

Specification 3.8K ¹ 7.6K 11.4K
Max. Recommended Power (STC) 7600 W 15200 W 22800 W
Max. DC System Voltage 600 V 600 V 600 V
MPPT Voltage Range 80 V ~ 550 V ² 80 V ~ 550 V ² 80 V ~ 550 V ²
Full-Load Voltage Range 150 V ~ 500 V 200 V ~ 500 V 220 V ~ 500 V
Number of MPPTs 2 3 4
PV Strings per MPPT 2 2 2
Max. Input Current per MPPT ($I_{MP}$ / $I_{SC}$) 13.5 A / 16.9 A


Battery Connection (DC)

Specification 3.8K ¹ 7.6K 11.4K
Nominal DC Voltage 400 V 400 V 400 V
I/O DC Current Up to 11.1 A Up to 21.7 A Up to 32.5 A ³
I/O DC Power 4000 W 7800 W 11700 W ⁴

Output (AC Grid-Tied)

Specification 3.8K ¹ 7.6K 11.4K
Nominal Power @ 208V / 240V 3290 W / 3800 W 6580 W / 7600 W 9880 W / 11400 W
Max. Apparent Power 3800 VA 7600 VA 11400 VA
Nominal Voltage / Grid Freq. 208 V or 240 V / 50/60 Hz 208 V or 240 V / 50/60 Hz 208 V or 240 V / 50/60 Hz
Max. Output Current 16 A 32 A 48 A
Power Factor / Adj. Range >0.99 / (0.8 lead ~ 0.8 lag) >0.99 / (0.8 lead ~ 0.8 lag) >0.99 / (0.8 lead ~ 0.8 lag)
THDI / Grid Connection Type <3% / L1, L2, N, PE <3% / L1, L2, N, PE <3% / L1, L2, N, PE

Output (Emergency Backup)

Specification 3.8K ¹ 7.6K 11.4K
AC Nominal Power 3800 W 7600 W 11400 W
Max. AC Power Output (Peak) 6000 VA ⁴ 12000 VA ⁴ 18000 VA ⁴
Nominal AC Voltage 240 V 240 V 240 V
Max. Output Current 25 A ⁵ 50 A ⁵ 75 A ⁵
Total Harmonic Distortion (THD) 2% linear / 5% non-linear 2% linear / 5% non-linear 2% linear / 5% non-linear

Efficiency & Protection

Specification 3.8K ¹ 7.6K 11.4K
Max. Efficiency 98.0% 98.4% 98.5%
CEC Efficiency (@240 V / @208 V) 97.0% / 97.0% 97.5% / 97.0% 98.0% / 97.5%
Built-In Protection Features Reverse Polarity, DC Disconnect, Type II DC Surge, Type III AC Surge, Insulation Monitoring, AC Short-Circuit, Ground Fault Monitoring, Grid Monitoring, Anti-Islanding, Residual-Current Monitoring, AFCI Protection

Advanced Safety Integrations:

  • PVRSS rapid shutdown compliant when paired with TS4-A-F/2F or TS4-A-O/S.

  • Module-level monitoring enabled via TS4-A-O/M/S.

Physical & Environmental Specs

  • Dimensions (W x D x H):

    • 3.8K & 7.6K: 400×170×570 mm (15.8×7×22 in)

    • 11.4K: 400×187×638 mm (15.8×7.4×25.2 in)

  • Weight:

    • 3.8K & 7.6K: 14.7 kg (32.3 lbs.)

    • 11.4K: 20.5 kg (45.2 lbs.)

  • Operating Temperature Range: -25°C to 60°C (-13°F to 140°F) Note: Derating occurs above 45°C / 113°F

  • Environmental Rating: NEMA 4X / IP65 (Suitable for indoor or outdoor installation)

  • Cooling: Natural Convection

  • Maximum Altitude: 3000 m (9,843 ft.)

  • Nighttime Internal Consumption: <1 W (PV) / <5 W (Storage)

  • Communication Interfaces: RS-485 built-in; Wi-Fi standard; 4G Cellular optional

  • Revenue-Grade Meter: Built-in ANSI C12.20 (meets 0.5% accuracy)

Certifications & Listings

  • Certifications: FCC Part 15B, UL1741:2021 Ed.3, UL1741:2021 Ed.3 (PVRSS) (SA) (SB), CSA 22.2-107.1:2016, UL1741 CRD: PCS, UL1699B, IEEE 1547:2018, IEEE 1547.1:2020, HECO-SRD1547.1:2020 Ed.2

  • Grid Listings: CA-CEC, CA Rule 21 CSIP, CA CPUC-SGIP, Hawaii Rule 14H / Rule 22 / Rule 27 / Rule 32, Puerto Rico-OGPe

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