FOX ESS H1-3.7 Hybrid Inverter

The FOX ESS H1-3.7 Hybrid Inverter is a single-phase hybrid inverter designed for residential and light commercial solar systems. It combines PV input, AC power management, and battery compatibility to manage energy between solar panels, batteries, and the grid.

The inverter provides a rated AC output of 3.7kW and supports up to 4.68kW PV input power with dual MPPT tracking for efficient solar performance. It supports high-voltage lithium batteries, including FOX ESS energy storage modules, allowing scalable storage from 5.8kWh to 18.2kWh.

The unit features IP65 protection for indoor or outdoor installation, automatic switching time below 20ms, and peak efficiency up to 97.8%. It includes safety mechanisms such as DC switch, RCD, insulation monitoring, and surge protection. Monitoring is available through LCD display, app, or online portal.

Authorised retailer of Fox ESS.

Specification

• Rated Output Power: 3.7kW (AC)
• Maximum PV Input Power: 4.68kW
• Maximum DC Input Voltage: 600V
• Battery Type: Lithium (LFP)
• Maximum Charge/Discharge Current: 40A
• MPPT Trackers: Dual MPPT
• Battery Voltage Range: 85V–450V
• Switching Time: <20ms
• Communication Interfaces: CAN, RS485, USB, Wi-Fi, LAN, GPRS (optional)
• Efficiency (PV to Grid): 97.8%
• Battery Charge Conversion Efficiency: 98.5%
• Protection Rating: IP65 (indoor/outdoor)
• Cooling Method: Natural convection
• Noise Level: <35 dB
• Operating Temperature Range: –25°C to +60°C
• Dimensions: 430 × 410 × 178 mm
• Weight: 23 kg
• Compatible Battery Expansion: Up to 7 modules (18.2kWh maximum capacity)
• Certifications: G98, G99, VDE-AR-N 4105, CEI 0-21