HYBRID INVERTER | TIGO | 3800W | TSI-3.8K-US

🔌 Tigo TSI‑3.8K‑US – 3.8 kW Hybrid Grid‑Tie & Battery Inverter (Energy Intelligence Series)

Versatile hybrid inverter fully integrated with Tigo’s Energy Intelligence platform—supports solar PV, module-level optimization, and battery backup in one lightweight, storage-ready unit.

⚙️ Key Features

• 3.8 kW continuous AC output @ 240 VAC (3.29 kW @ 208 VAC), with up to 3.8 kW peak power and 4.56 kW backup surge in storage mode

• Storage‑ready & hybrid capable: Works with PV and batteries (LFP); supports grid-tie, off-grid, backup, and peak-shaving configurations

• 200 % DC oversizing allowed (2:1 DC/AC), supports up to 7.6 kW PV input, max Voc 600 V, startup at 50 V

• Dual MPPTs (2 channels × 2 strings each); wide operating range: 50–550 V

• Built‑in module-level monitoring & rapid shutdown via Tigo TS4 MLPE

• Connectivity: Integrated Wi‑Fi; optional 4G cellular and RS‑485; quick setup with EI App (~10 min)

• High efficiency: ~98% peak, ~97% CEC-weighted (@240 VAC)

• Durable design: NEMA 4X/IP65 enclosure, natural convection cooling, wide range operation (−25 °C to +60 °C)

• Lightweight: ~14.7 kg (32.3 lb)

• Extended warranty: 152 months (~12.7 years)

📏 Quick Specs

📄 Official Datasheet
Download the full technical specs for TSI‑3.8K‑US and related models:
Tigo TSI‑3.8/7.6/11.4K‑US Inverter Datasheet (PDF)