Specific or complex project ahead? Get in touch for a free, fast quote.
Fox ESS H1 3.7kW Hybrid Inverter with EPS 1PH Gen 2
Regular price
£870.00
Inc. VAT
£725.00
Exc. VAT
FREE Express Delivery (1-3 days) in UK Mainland on most orders*
Excluding: Solar Panels (£170 delivery / free above £2,500), Batteries (£39 delivery), Small Items (£4.95/5.95 delivery / free above £500)
Contact Us to check for Next Working Day Delivery or Same-day Delivery options
Contact Us for Click & Collect options
Custom quote available on request
*See checkout or shipping policy for full details
Documentation
Downloads
Payment options
Tools & Kits
Build your kit
Need a full system?
Design your complete solution in minutes with our kit builders.
Do you have a question
about this product?
One of our expert advisors will be happy to help you!
Contact Us
FE-H1-3.7-G2 | Single-phase 3.7kW high-voltage hybrid inverter with dual MPPT, integrated EPS backup and IP65 rating for residential solar + storage.
Key Features
- 3.68kW rated AC output with dual MPPT trackers (max 5.5kW PV input).
- High-voltage battery compatibility (ECS2900/4100 series, 85-450V range).
- Integrated EPS backup port (5kW continuous, <20ms switch time).
- 97.8% max efficiency with wide MPPT range 80-550V DC.
- IP65 rated for indoor/outdoor installation with natural cooling.
- Export limitation via CT clamp or Modbus meter.
- WiFi dongle included for Fox ESS cloud monitoring.
- Parallel operation up to 10 units.
Electrical Characteristics
| Rated AC Power | 3,680 W |
| Max PV Input | 5,500 W |
| MPPT Voltage Range | 80-550 V DC |
| Max Efficiency | 97.8% |
| EPS Output | 5kW continuous / 6kW 60s |
| Battery Voltage | 85-450 V DC |
| Grid Voltage | 220-240 V AC |
Mechanical Specifications
| Dimensions (W×H×D) | 430 × 410 × 178 mm |
| Weight | 23 kg |
| Protection Rating | IP65 |
| Cooling | Natural convection |
| Operating Temp | -25°C ~ +60°C |
| Noise Level | <29 dB |
Installation & Compatibility
- Integrated DC switch and CT clamp included.
- Compatible with Fox ECS2900 (1M+1S min) and ECS4100 batteries.
- 5-year standard warranty (extendable to 10 years).
- G98/G99 compliant with remote firmware updates.
MPN: FE-H1-3.7-G2
Model: Fox H1 3.7kW Hybrid Gen 2
Powerful residential hybrid inverter combining PV optimisation, high-voltage battery support and seamless EPS backup in a compact IP65 package.
BTU & WATT Calculator
Room Dimensions
Room Type
Living Room
Bedroom
Kitchen
Bathroom
Conservatory
Hallway
Glazing Type
Single Glazed
Double Glazed
Triple Glazed
External Walls
0 Wall
1 Wall
2 Walls
3 Walls
4 Walls
Insulation Level
Poor
Average
Good (New Build)
Required Heating
0
Watts
0
BTUs
Documentation
Downloads
Tools & Kits
Build your kit
Need a full system?
Design your complete solution in minutes with our kit builders.
Do you have a question
about this product?
One of our expert advisors will be happy to help you!
Contact Us