Maple Leaf Northern Fox FLEX Hybrid Solar Inverter & Modular Battery Kits | 9.6kW or 11.4kW Inverter | 8kW to 28kW Expandable Energy Storage System | Optional Fox ESS Hub G2 Smart Energy Management

$8,399.99
$8,399.99
$8,399.99
Sold out
Quantity must be 1 or more

PRE-ORDER SALE - Estimated March 2026 Arrival

Downloads:

Extended Warranty Claim

For Maple Leaf Northern Fox Standalone FLEX Inverter:

For Maple Leaf Northern Fox ECM4000 & ECS4000 Batteries:

For Fox ESS Hub G2 (Optional):

Bundle Overview:

  • Maple Leaf Northern Fox Solar Power Inverter & Energy Storage Kits
  • Available in 8 kW, 12 kW, 16 kW, 20 kW, 24 kW, and 28 kW versions, with or without Fox ESS Hub G2 (optional)
  • Includes Maple Leaf Northern Fox FLEX Hybrid Solar Inverter at 9.6kW or 11.4kW output and battery modules from 8kW storage capacity up to 28kW storage capacity
  • Backed by a 15-Year Extended Warranty with Maple Leaf Power Systems support!

Unlock reliable, scalable energy storage with Maple Leaf Northern Fox FLEX Hybrid Solar Power Kits, a premium hybrid solution combining Fox ESS’s cutting-edge energy technology with Maple Leaf’s trusted Canadian support and distribution. These all-in-one bundles include a Maple Leaf Fox FLEX H1&AC1 split-phase hybrid solar inverter in either 9.6kW output or 11.4kW output, and a modular Maple Leaf Fox ECS battery system with ECM4000 master control. The Fox ESS Hub G2 smart energy management system is optional for additional flexibility and installation capabilities.

Whether you’re going off-grid, staying grid-tied, or operating a hybrid setup, this kit delivers maximum performance, flexibility, and peace of mind, ideal for residential or commercial energy systems.

What’s Included in Each Kit

Kit Battery Capacity Master Battery (ECM4000) Slave Batteries (ECS4000) Hybrid Inverter 9.6kW / 11.4kW Fox ESS Hub G2
8 kW 1 1 1 Optional
12 kW 1 2 1 Optional
16 kW 1 3 1 Optional
20 kW 1 4 1 Optional
24 kW 1 5 1 Optional
28 kW 1 6 1 Optional

Note: System is expandable up to 27.8 kWh. Additional modules and inverters can be added for larger installations.

Key Features & Benefits

  • Maple Leaf Northern Fox H1&AC1 9.6kW or 11.4kW Split-Phase Hybrid Solar Inverter: 9.6 kW output or 11.4kW output with 97.6% efficiency, AFCI protection, app-based monitoring, and support for parallel inverter operation.
  • Maple Leaf Northern Fox ECM4000 + ECS4000 Battery System: Durable LiFePO₄ battery chemistry with modular scalability, >6000 cycle life, and over 95% round-trip efficiency.
  • Easy Plug-and-Play Battery Expansion: Simply stack to connect up to 6 slave batteries to the master battery to increase storage to up to 27.8kW capacity
  • Smart Monitoring via FoxCloud App: Track and control your energy usage from anywhere with intuitive mobile and web interfaces.
  • Compatible with Fox ESS Hub G2: Smart hub energy management solution to provide flexible whole-home or partial home backup capabilities
  • Outdoor-Ready & Certified Safe: All components are IP65/IP66-rated for indoor or outdoor installation, UL and CSA certified for North American compliance.

Maple Leaf Northern Fox FLEX Split-Phase 9.6kW or 11.4kW Hybrid/AC Solar Inverter

Key Features

  • Split-phase 120/240V output, 9.6kW or 11.4kW options

  • Supports high-voltage Fox ESS modular battery storage system

  • Remote monitoring via app or browser

  • Rapid backup switchover during outages

  • Flexible whole-home or partial home backup options

  • Advanced protection: AFCI, anti-islanding, surge

  • Weatherproof (Type 4X) & silent cooling

Specifications

  • Output Power: 9.6 kW standard or 11.4kW standard

  • Solar Input: Max 12,960 W / 600V

  • Battery Voltage: 85 – 460 V

  • Efficiency: Up to 97.6%

  • MPPT: 2 independent trackers

  • Max Backup Power (10 min): 17.1 kVA

  • Noise: <35 dB

  • Dimensions: 18.2 x 25.9 x 9.2 in

  • Weight: 83.8 lbs

  • Certifications: UL 1741 SB, UL 1998, IEEE 1547, CSA 22.2, Rule 21, HECO

  • Warranty: 12.5-year manufacturer warranty +2.5 years extended coverage through Maple Leaf Power Systems - 15yr total warranty

Maple Leaf Northern Fox ECM4000 High-Voltage Master Battery

Key Features

  • Controls up to 6 ECS4000 slave modules

  • Plug-and-play with integrated BMS

  • IP65 weatherproof design w/ integrated battery heater for cold climate conditions

  • Extremely long cycle life with advanced LiFePO₄ chemistry

  • Compatible with FOX inverters via CAN/RS485

Specifications

  • Capacity: 3.975 kWh

  • Voltage: 57.6V

  • Max Charge/Discharge Current: 50A

  • Cycle Life: >6000 cycles @ 90% DoD

  • Efficiency: >95%

  • Weight: 108.4 kg (238.5 lbs)

  • Dimensions: 22.4 x 18.5 x 15.0 in

  • Certifications: UL1973, UL9540, UL9540A, UN38.3

  • Warranty: 12.5-year manufacturer warranty +2.5 years extended coverage through Maple Leaf Power Systems - 15yr total warranty

Maple Leaf Northern Fox ECS4000 High Voltage Slave Battery

Key Features

  • Expandable up to 7 modules (1 master battery + 6 slave batteries) for 27.8 kWh total storage

  • Cooled by fanless high-efficiency heatsinks for zero-noise operation

  • 90% depth of discharge for maximum use

  • Plug-and-play installation

  • CAN communication

  • IP65 weatherproof design w/ integrated battery heater for cold climate conditions

Specifications

  • Voltage Range: 97.2 – 459.9V

  • Nominal Capacity: 3.97 kWh per module

  • Charge/Discharge Current: 50A continuous, 65A peak

  • Efficiency: >95%

  • Installation Type: Freestanding, indoor/outdoor

  • Operating Temp: -10°C to 55°C

  • Certifications: UL1973, UL9540, UL9540A, UN38.3

  • Warranty: 12.5-year manufacturer warranty +2.5 years extended coverage through Maple Leaf Power Systems - 15yr total warranty

Fox ESS Hub G2 Smart Energy Management System

Key Features

  • Automatic Off-Grid Protection: Ensures energy flow safety and protects against unexpected power failures.
  • Seamless On/Off Grid Transition: AC couple input capability enables a smooth switch between grid and battery power without disruption.
  • Smart Load Shedding Circuit: 3x Smart Load Circuits prioritize critical loads for optimal energy distribution.
  • Inverter Scalability: Supports multiple inverters to enhance power capacity and system flexibility.
  • Generator Compatibility: Integrates with generators for additional backup power.
  • Remote Monitoring & Control: FoxCloud US App enables real-time energy tracking and smart management.
  • Reliable Safety Features: Includes microgrid interconnection, short-circuit protection, and automatic disconnection.
  • Flexible Installation: Compact design with a Type 3R weather-resistant enclosure for outdoor and indoor setups.
  • Warranty: 12.5-year manufacturer warranty +2.5 years extended coverage through Maple Leaf Power Systems - 15yr total warranty.

Specifications

Electrical Data

  • AC Input Voltage (Nominal): 240 V
  • AC Output Voltage (Nominal): 120/240 V Split-Phase
  • Rated AC Power: 48 kW
  • AC Voltage Range: 211-264 V
  • AC Frequency (Nominal): 60 Hz
  • AC Frequency Range: 57-63 Hz
  • Microgrid Interconnection Device Rated Current: 200 A
  • Short-Circuit Breaking Capacity: 22 kA
  • Grid Disconnection Switchover Time: <20 ms

Generator (Optional)

  • Maximum Rated AC Power: 80 kW
  • AC Voltage Range: 200-280 V
  • Maximum Continuous Input Current: 80 A
  • Dry Contact Switch Voltage Rating: 250 V AC / 30 V DC
  • Dry Contact Switch Current Rating: 0.5 A (250 V AC) / 3 A (30 V DC)
  • 2-Wire Start Switch: Yes

External Connections

  • Solar Terminal: 200 A
  • FOX Inverter Input: 200 A
  • Smart Circuit 1 (240 V): 80 A
  • Smart Circuits 2, 3 (120 V): 80 A each
  • Backup Load Terminal: 200 A
  • Busbar Rating: 250 A

Additional Features

  • Maximum Number of Inverters Supported: 4
  • Communication Protocols: CAN, RS485
  • Energy Meter Accuracy: 0.5%

Installation Specifications

  • Dimensions (HWD): 26.2 x 17.4 x 6.2 inches (665 x 443 x 156.6 mm)
  • Weight: 37.4 lbs (17 kg)
  • Supported Inverters: FOX US Series
  • Grid Conduit Size / AWG Range: 2.5" Conduits / 6 AWG - 250 kcmil
  • Generator Input Conduit Size / AWG Range: 2.5" Conduits / 6 AWG - 250 kcmil
  • Communication Conduit Size / AWG Range: 1" Conduits / 24 AWG - 16 AWG
  • Cooling Method: Natural Convection
  • Noise Emission: <35 dB
  • Operating Temperature Range: -4°F to +122°F (-20°C to +50°C)
  • Protection Rating: Type 3R (Outdoor Rated)
  • Warranty: 12.5-year manufacturer warranty +2.5 years extended coverage through Maple Leaf Power Systems - 15yr total warranty.

Certifications & Compliance

  • Safety Certifications: UL67, UL869A, UL916, UL1741, CSA22.2 NO.107
  • Emissions Compliance: FCC Part 15 Class B
Go to full site