Tigo TSI-3.8K-US 3.8kW Energy Storage Hybrid Inverter

Tigo TSI-3.8K-US 3.8kW Energy Storage Hybrid Inverter

The Intelligent Core of Your Home Energy System

The Tigo TSI-3.8K-US is a high-efficiency, storage-ready hybrid inverter designed for seamless integration with the Tigo Energy Intelligence (EI) platform. Whether you are installing a new solar array or looking to add battery backup, this inverter serves as the central hub for intelligent energy management.

Note: 

• Battery Compatibility: The inverter is optimized for the Tigo EI Battery system to orchestrate full energy intelligence.
• Commissioning Requirements: The initial commissioning requires an internet connection (Wi-Fi or cellular) and the use of the Tigo EI Mobile App.

Key Features

• Massive 200% DC Oversizing: Supports up to 7.6kW of PV input (2:1 DC/AC ratio), allowing for maximum energy harvest even in low-light conditions.
• Ultra-Low Start Voltage: High-performance tracking begins at just 80V, extending your production window from dawn to dusk.
• Rapid Commissioning: Complete system setup in under 10 minutes using the intuitive Tigo EI Mobile App (includes Tigo TS4 integration).
• Lightweight Design: At only 32.3 lbs, this unit is built for easy, one-person installation.
• Advanced Safety: Fully NEC 690.12 compliant for rapid shutdown and features built-in Wi-Fi for real-time monitoring.

Technical Specifications

• Max. recommended power (STC): 7600W
• Max. DC system voltage: 600 V
• MPPT voltage range: 80 V ~ 550 V
• Full-load voltage range: 150 V~500 V
• MPPT: 2
• PV strings per MPPT: 2
• Max. input current per MPPT (IMP/ISC): 13.5 A/16.9 A
• Nominal DC voltage: 400V
• I/O DC current: Up to 11.1 A
• I/O DC power: 4000 W
• Nominal power @208V/240 V: 3290 W/ 3800 W
• Max. apparent power: 3800 VA
• Nominal voltage: 208 V/240 V
• Grid frequency: 50/60 Hz
• Max. output current: 16 A
• AC nominal power: 3800 W
• Max. AC power output: 6000 VA
• Nominal AC voltage: 240 V
• Max. output current: 25 A
• Dimensions (W x D x H): 15.8 x 7 x 22 in.
• Weight: 32.3 lb.
• Enclosure: NEMA 4X/IP65