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Description
Fox ESS H3 Pro 25kW 3PH Hybrid InverterFox ESS H3 Pro 25kW Three Phase 3 MPPT Hybrid Inverter The Fox ESS H3 Pro 25. 0 (part number FE H3 PRO 25. 0, manufacturer model H3 PRO 25. 0 E) is a 25 kW three phase hybrid inverter with three independent MPPT trackers and two battery inputs. As a hybrid inverter and battery storage controller, the H3 Pro combines solar PV conversion with high voltage battery management for full three phase emergency power capability. It accepts a maximum DC input
Fox ESS H3 Pro 25kW Three-Phase 3-MPPT Hybrid Inverter
The Fox ESS H3 Pro 25.0 (part number FE-H3-PRO-25.0, manufacturer model H3-PRO-25.0-E) is a 25 kW three-phase hybrid inverter with three independent MPPT trackers and two battery inputs. As a hybrid inverter and battery storage controller, the H3 Pro combines solar PV conversion with high-voltage battery management for full three-phase emergency power capability. It accepts a maximum DC input of 37,500 W (12,500 W per MPPT) at up to 1,000 V with an MPPT range of 150 V to 850 V, and achieves a maximum efficiency of 97.80% with a Euro efficiency of 97.4%. The two battery inputs support dual battery stacks for maximum storage capacity. Up to 10 inverters can be installed in parallel (Fox H3 Pro EMS required). IP65 rated, WiFi dongle and three-phase meter included. Available from DECO Group, a UK-based solar trade wholesaler.
Key Technical Details
- Part number: FE-H3-PRO-25.0
- Supplier part number: FE-H3-PRO-25.0
- Manufacturer model: H3-PRO-25.0-E
- Inverter type: Three-phase hybrid (PV inverter and battery storage controller)
PV Input
- Maximum recommended DC power: 12,500 W per MPPT (37,500 W total)
- Maximum input voltage: 1,000 V
- MPPT operating voltage range: 150 V to 850 V
- DC startup voltage: 160 V
- Maximum DC input current: 32 A per MPPT (96 A total)
- Maximum DC inputs: 6
- MPPT quantity: 3
- Strings per MPPT: 2 / 2 / 2
- Connector: MC4 (12 included)
- Integrated DC switch: Yes
AC Output
- Nominal AC power: 25,000 VA
- Maximum AC power (5 minutes): 25,000 W
- Surge AC power (1 second): 27,500 W
- Maximum efficiency: 97.80%
- Euro efficiency: 97.4%
- Phases: 3
- Transformer: None (transformerless)
Battery
- Battery type: High-voltage lithium
- Battery voltage range: 150 V to 800 V
- Battery inputs: 2 (supports dual battery stacks)
- Maximum charge rate: 30 kW
EPS (Emergency Power Supply)
- EPS maximum apparent power: 25,000 VA
- Full three-phase emergency power capability
General
- Cooling: Natural convection (fanless)
- Ingress protection: IP65
- Dimensions: 600 x 560 x 225 mm (W x H x D)
- Weight: 52.5 kg
Key Features
- Three independent MPPT trackers with 2 strings each (6 string inputs total) for flexible array design
- Full three-phase hybrid functionality: PV inverter and battery storage controller in a single unit
- Two battery inputs support dual battery stacks for maximum storage capacity
- 97.80% maximum efficiency with 97.4% Euro efficiency
- Full three-phase EPS at 25,000 VA for backup power during grid outages
- Up to 10 inverters in parallel (Fox H3 Pro EMS required)
- IP65 rated with natural convection cooling for quiet outdoor installation
- WiFi dongle and three-phase meter included in the box
- Compatible with the full range of Fox ESS high-voltage batteries
- FE-LAN-STICK is not compatible with this range
System Compatibility
- Compatible with Fox ESS ECS batteries (Energy Cube range)
- Compatible with Fox ESS EQ batteries
- Compatible with Fox ESS HV2600 batteries
- Compatible with Fox ESS MIRA HV25 batteries
- Maximum 2 battery stacks per inverter, with up to 7 modules per stack (1 x Master + 6 x Slaves). Consult the Fox ESS Battery Sizing Guide for maximum storage capacity by battery type.
- Up to 10 x H3 Pro inverters in parallel (Fox H3 Pro EMS required for parallel operation), each with two full battery stacks
- This is a hybrid inverter and battery controller; if retrofitting, it replaces the existing PV inverter
- FE-LAN-STICK is not compatible with this range; contact Fox ESS for alternative LAN connectivity
Included Components
- 1 x Fox ESS H3 Pro 25.0 kW three-phase hybrid inverter
- WiFi dongle for Fox Cloud monitoring
- Three-phase meter (Modbus)
- CT clamp
Installation Notes
- At 52.5 kg, a two-person lift is required
- IP65 rated for indoor or outdoor installation
- Modbus meter supplied as standard; a CT clamp is also included
- For parallel installations, the Fox H3 Pro EMS is required
- Must be installed by a qualified electrician or technician in compliance with local wiring regulations
Certifications and Compliance
- G100
Warranty
- Standard warranty: 5 years
- Extended warranty: 10 years when the installation is registered with Fox ESS online
Common Questions
Click a question below to reveal the answer.
Why does the Fox ESS H3 Pro have two battery inputs?
The two battery inputs allow the H3 Pro to connect two independent battery stacks, significantly increasing maximum storage capacity compared to single-input inverters. Each stack can contain up to 7 modules (1 x Master + 6 x Slaves). Consult the Fox ESS Battery Sizing Guide for maximum capacity by battery type.
What batteries are compatible with the Fox ESS H3 Pro?
The H3 Pro is compatible with the full range of Fox ESS high-voltage batteries: ECS (Energy Cube), EQ, HV2600, and MIRA HV25.
How many Fox ESS H3 Pro inverters can be installed in parallel?
Up to 10 x H3 Pro inverters can be installed in parallel, each with two full battery stacks. The Fox H3 Pro EMS is required for parallel operation.
Does the Fox ESS H3 Pro provide three-phase backup power?
Yes. The H3 Pro provides full three-phase EPS (emergency power supply) at 25,000 VA when paired with a battery system.
What are the dimensions and weight of the Fox ESS H3 Pro 25kW?
The H3 Pro 25 kW measures 600 x 560 x 225 mm (W x H x D) and weighs 52.5 kg. A two-person lift is required.
About Fox ESS
Fox ESS is a global manufacturer of inverter and energy storage solutions. Engineered by leading inverter and battery specialists, Fox ESS products deliver high efficiency and long-term reliability across residential and commercial solar installations.
DECO Group supplies Fox ESS H3 Pro hybrid inverters alongside the full range of compatible batteries, EMS controllers, monitoring modules, and system accessories. Browse our Fox ESS hybrid inverter catalogue for complete three-phase storage system components.
About DECO Group
We are a UK-based solar and energy storage wholesaler supplying three-phase hybrid inverters, battery modules, and system accessories to professional installers and electrical contractors. Our Fox ESS H3 Pro range is stocked alongside dual-stack battery configurations and parallel installation hardware for scalable commercial projects. Visit decogroup.co.uk for the full catalogue.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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