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

Features and Benefits

• Available in 3.8 kW, 7.6 kW, and 11.4 kW models
• Storage-ready ‘hybrid’ inverter
• Up to 200% DC oversizing (2:1 DC/AC ratio)
• 50V starting voltage
• Multiple MPPTs (3 and 4)
• 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)

INPUT DATA
Max. Recommended PV Power (STC): 7600W
Max. DC/AC Ratio: 2
Max. DC System Voltage: 600V
Startup Voltage: 50V
Nominal Voltage: 360V
Operating Voltage: 50V~550V
No. of MPPT: 2
No. Of PV Strings per MPPT: 2
Max. Input Current per MPPT (Imp / Isc): 13.5A / 16.9A

INPUT/OUTPUT DATA (BATTERY)
I/O Voltage Range: 360V~550V
Nominal DC Voltage: 400V
I/O DC Current: Up to 11.5A
I/O DC Power: 4000W
Battery Technology: LFP
Max number of battery enclosures: Up to 4
Battery Capacity: 9.9, 18.9, 29.7, 39.6kWh

OUTPUT DATA (AC)
AC Nominal Power@240V AC: 3800W
AC Nominal Power@208V AC: 3290W
Max. AC Apparent Power: 3800VA
Nominal AC Voltage: 208V/240V
AC Voltage Range@208V AC / @240V AC: 183V~229V / 211V~264V
AC Grid Frequency: 50/60Hz
AC Grid Frequency Range: 45~65Hz
Max. Output Current: 16A
Power Factor(@Normal Power): >0.99
Adjustable Power Factor: 0.8 Leading~0.8 Lagging
THDI: <3%
AC Grid Connection Type: L1/L2/N/PE

OUTPUT DATA (BACKUP)
Max. Continuous Power: 3800W
Peak Power: 4560W
Nominal AC Voltage: 240V
Max. Output Current: 16.7A
THD: 5%

EFFICIENCY
Max. Efficiency: 98.0%
CEC Efficiency @240V AC / @208V: 97.0 % / 97.0%

PROTECTION DEVICES
DC Reverse-polarity Protection: Yes
DC Disconnect Switch: Yes
DC Surge Protection: Type II
Insulation Resistance Monitoring: Yes
AC Surge Protection: Type III
AC Short-circuit Protection: Yes
Ground Fault Monitoring: Yes
Grid Monitoring: Yes
Anti-Islanding Protection: Yes
Residual-current Monitoring Unit: Yes
AFCI Protection: Yes
PVRSS Rapid Shutdown: TS4-A-F, TS4-A-O
Module-level Monitoring: TS4-A-O

GENERAL DATA
Operating Temperature Range: -25°C ~ +60°C (-13°F ~ +140°F) de-rating above 45°C/113°F
Altitude: 3000m (9843ft)
Internal Consumption at Night: <1W (for PV Inverter) / <5W (for storage inverter)
Cooling: Natural Convection
Electronics Protection Degree: NEMA 4X (IP65)
Relative Humidity: 0~95%

INTERFACES
RS485: Yes
WIFI/4G Communication: WIFI Standard / 4G Optional
Warranty: 152 months
Revenue Grade Meter: ANSI C12.20 (meets 0.5% accuracy)

CERTIFICATIONS
FCC PART 15B, UL 1741:2010 SA, UL 1741:2021 SB, UL1699B, CSA 22.2 -107, IEEE
1547.1:2020, CEC Listed, CA Rule21 SGIP Listed, Hawaiian Rule14H, HECO SRD 2.0
Listed, NEC 2020-690.12; Rapid Shutdown PVRSS System Listed