Fox ESS H3 Smart 12.0kW Three Phase Hybrid Inverter

The Fox ESS H3 Smart 12.0kW is a three phase hybrid and AC coupled inverter designed for commercial and larger scale storage systems. It supports high voltage battery integration, true three phase backup operation, and flexible system design with multiple battery compatibility options, all within a compact IP65 rated enclosure.

Key Technical Details

• Manufacturer series: Fox ESS H3 Smart Series
• Model: H3-12.0-Smart
• Part number: FE-H3-12.0-SMART
• Rated power: 12,000 W
• Max AC power (5 minutes): 12,000 W
• Surge AC power (1 second): 13,200 W
• Max DC power: 22,500 W
• Min PPT voltage: 140 V
• Max PPT voltage: 1,000 V
• DC startup voltage: 140 V
• DC shutdown voltage: 1,000 V
• Max input voltage: 1,000 V
• Max DC current: 60 A
• MPPT quantity: 3
• Max DC inputs: 3
• Has DC fuses: 1
• Has integrated DC switch: Yes
• Connector type: MC4
• Included connectors: 6
• Euro efficiency: 97.2 %
• Transformer type: hf
• Ingress protection: IP65
• Weight: 34 kg
• Warranty: 10 years

Key features

The H3 Smart Series is engineered for straightforward commissioning using a plug and play design with integrated fuse protection. High voltage architecture enables efficient energy conversion, while support for multiple battery types allows adaptable system configuration.

System capabilities

This inverter provides true three phase backup functionality, supporting balanced power delivery across all phases. With three independent MPPTs and high DC input capacity, it is suited to complex array layouts and higher power PV systems.

Safety, monitoring and control

Integrated DC isolation, DC fusing, and IP65 certification support safe operation in indoor or outdoor installations. Built-in Wi-Fi enables remote system monitoring and management via app or web portal.

Included components

The inverter is supplied with an integrated meter to support system measurement and control.

Installation notes

The compact 34 kg enclosure and integrated protective components are intended to simplify handling and installation. The IP65 rated housing allows flexible mounting locations without additional environmental protection.

About DECO Group

We are a UK-based solar wholesaler and distributor supplying professional installers with reliable PV and energy storage equipment. Our focus is on technically robust products, clear system integration, and practical support for trade professionals.