Hoymiles HM-350NT Microinverter

Hoymiles HM-350T Single-Module Microinverter

The Hoymiles HM-350T is a single-module microinverter engineered for high-output solar panels rated from 280W to 470W+. Designed with a wide 16–60V MPPT voltage range and a low 22V start-up threshold, the Hoymiles hm-350 maximizes daily energy yield. It features an external antenna for reliable DTU gateway communication, built-in Reactive Power Control for CA Rule 21 compliance, and native compliance with U.S. NEC 2017/2020 690.12 rapid shutdown rules. Built with natural convection cooling and 6000V surge protection inside an outdoor NEMA 6 (IP67) enclosure, it delivers high reliability for expanded solar arrays.

Scaling up your Solar Array? 

For maximum installation efficiency and the best value on 4-panel systems, see technical and product details for the [Hoymiles 1200W (HM-1200-NT)] or the high-output [1500W (HM-1500NT)] models.

Technical Specifications

• Commonly used module power (W): 280 to 470+
• Maximum input voltage (V): 60
• MPPT voltage range (V): 16-60
• Start-up voltage (V): 22
• Maximum input current (A): 11.5
• Peak output power (VA): 350
• Maximum continuous output power (VA): 349
• Nominal frequency/range (Hz)1: 60/55-65
• CEC peak efficiency: 96.7%
• CEC weighted efficiency: 96.5%
• Nominal MPPT efficiency: 99.8%
• Nighttime power consumption (mW): <50
• Ambient temperature range (°C): -40 to +65
• Dimensions (W × H × D mm): 182 × 164 × 29.5
• Weight (kg): 1.75
• Enclosure rating: Outdoor-NEMA 6 (IP67)
• Cooling: Natural convection – No fans