Maple Leaf Northern Fox H1&AC1 Split-Phase Hybrid Solar Inverter (FLEX Version) | UL & IEEE Certified | Off-Grid & Grid-Tied | Type 4X Outdoor Rated

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• Maple Leaf Northern Fox FLEX Inverter User Manual
• Maple Leaf Northern Fox FLEX Inverter Datasheet
• UL1741 Descriptive Report
• CSA Compliance

Maple Leaf Northern Fox ESS H1&AC1 Split-Phase Hybrid AC Solar Inverter - FLEX Version

The Maple Leaf Northern Fox H1&AC1 Series is a high-performance hybrid solar inverter designed for both on-grid and off-grid applications. 

With flexible battery expansion, seamless integration, and advanced monitoring, this inverter is ideal for residential and commercial solar energy systems. Its split-phase functionality and high efficiency make it a reliable solution for optimizing energy usage and backup power.

The Maple Leaf Northern Fox H1&AC1 Series Flex solar inverter combines reliability, efficiency, and scalability, making it an excellent choice for modern energy storage and solar power applications. Capable of being installed with or without the Fox ESS Hub G2, the Flex inverter simplifies the installation process and provides multiple options to homeowners for partial-home or whole-home backup applications.

KEY FEATURES:

• Split-Phase Hybrid & AC Solar Inverter: Operates efficiently with both grid and battery power for versatile energy management.
• Flexible Battery Expansion: Designed for Fox ESS modular high-voltage lithium solar batteries and scalable storage up to 27.8 kWh.
• Smart Monitoring: When equipped with a WiFi connection dongle (sold separately) remote monitoring provides real-time performance data through your smartphone or PC.
  • Note: WiFi capability is achieved by connecting the inverter using the WiFi dongle included in the Fox ESS Inverter Accessory Kit or the ESS Hub G2, each sold separately.
• Seamless Backup Power: Ensures reliable operation during grid outages with rapid switchover to battery storage.
• High Efficiency: CEC efficiency up to 97.6 percent, maximizing energy conversion and cost savings.
• Advanced Protection: Includes insulation monitoring, residual current detection, surge protection, anti-islanding, and arc fault circuit interrupter (AFCI).
• Weatherproof Design: NEMA Type 4X rating for outdoor installation, with natural convection cooling for silent operation.
• Multiple Configurations: Available in 3.8 kW, 5.7 kW, 7.6 kW, 9.6 kW, and 11.4 kW models to suit various energy needs.
• Parallel Operation: Supports up to four inverters in parallel via the Fox ESS hub for increased power output for 200A services and unlimited expansion for larger systems (additional batteries will be required)
• Warranty: 12.5-year manufacturer warranty +2.5 years extended coverage through Maple Leaf Power Systems - 15yr total warranty.

PRODUCT SPECIFICATIONS

 

• Dimensions (WHD): 18.2 x 25.9 x 9.2 inches (462 x 658 x 234.5 mm)
• Weight: 83.8 lbs (38 kg)
• Installation: Wall-mounted
• Cooling Method: High-efficiency fanless heatsinks
• Noise Emission: Less than 35 dB

Operating Conditions

• Operating Temperature: -13°F to 140°F (-25°C to 60°C), with power derating above 104°F (40°C)
• Maximum Operating Altitude: 9,843 feet (3,000 m), derating above 6,560 feet (2,000 m)
• Humidity: 0 to 100 percent (no condensation)
• Protection Rating: Type 4X (suitable for outdoor installation)

Battery Compatibility

• Battery Type: High-voltage lithium-ion (LFP)
• Battery Voltage Range: 85 to 460 V
• Rated Battery Voltage: 360 V
• Max Continuous Charge/Discharge Current: 50 A
• Max Discharge Current (60s): 60 A
• BMS Communication: CAN 2.0

PV Input (Only for Hybrid Models)

• Max Solar STC Power: 12,960 W (for H1-11.4-US model)
• Max Input Voltage: 600 V
• MPPT Operating Voltage Range: 80 to 550 V
• Max Input Current: 28 A per MPPT
• No. of Independent MPPT Trackers: 2

AC Input & Output (Grid)

• Rated Grid Voltage: 240 V (split-phase)
• Rated Grid Frequency: 60 Hz
• Power Factor: >0.99 (adjustable from 0.8 leading to 0.8 lagging)
• THD (Total Harmonic Distortion): <3 percent

Backup Power (Off-Grid Mode)

• Rated Output Power: 3.8 kW to 11.4 kW (model dependent)
• Peak Output Power (10 min): Up to 17,100 VA
• Peak Output Power (60 sec): Up to 11,400 VA
• Rated Backup Voltage: 240 V (split-phase)
• Backup Frequency: 60 Hz

Certifications & Compliance

• Grid Compliance: IEEE 1547-2018, IEEE 1547a-2020, IEEE 1547.1-2020
• Safety Certifications: UL 1741 SA/SB, UL 1741 CRD, UL 1998, UL 1699B, CSA C22.2 No.107.1-16, Rule 21, HECO SRD-V2.0
• EMC Compliance: FCC Part 15 Class B