Felicity ESS T-REX 50kW Three Phase Hybrid Inverter T-REX-50KHP3G01 | High Voltage Commercial Solar Inverter

The Felicity ESS T-REX 50kW Hybrid Inverter T-REX-50KHP3G01 is a powerful three-phase high-voltage hybrid solar inverter engineered for commercial and industrial solar installations in South Africa.

Delivering 50kW rated AC output, up to 65kW solar PV input, 180–600V high-voltage LiFePO₄ battery compatibility and 99.9% MPPT efficiency, the T-REX provides an advanced energy-management solution for businesses looking to combine solar panels, battery storage, grid electricity and generator backup.

With dual independent battery inputs, Smart Cloud Monitoring, a 3.5-inch colour touchscreen and an IP65-rated enclosure, this commercial hybrid inverter provides the flexibility, monitoring and reliability required for demanding three-phase solar installations.

Key Features

• 50kW three-phase hybrid inverter
• 55kW maximum AC output
• Supports up to 65kW solar PV input
• 180–600V high-voltage LiFePO₄ battery support
• Dual independent high-voltage battery inputs
• Maximum 50A battery charging current
• Maximum 50A battery discharging current
• 2 MPPT trackers
• Wide 200–850V MPPT operating range
• Maximum 1000V DC PV input
• Exceptional 99.9% MPPT efficiency
• Maximum conversion efficiency of 97.8%
• 3.5-inch colour LCD touchscreen
• Smart Cloud Monitoring for remote system management
• Programmable generator port
• Self-consumption, backup and grid-tie operating modes
• RS485 and CAN communication
• Intelligent air cooling
• IP65-rated enclosure
• Suitable for indoor and outdoor installation
• Integrated BMS, surge and isolation protection
• 5-year warranty with extension options

Felicity T-REX 50kW Technical Specifications

50kW Commercial Solar Inverter for South Africa

The Felicity 50kW hybrid inverter is designed for businesses and properties with substantial three-phase electricity requirements.

Its 50kW continuous rated output and maximum 55kW AC output make it suitable for larger commercial applications where conventional residential solar inverters cannot provide sufficient capacity.

The inverter can intelligently integrate solar PV generation, high-voltage battery storage and grid electricity, while its programmable generator connection provides an additional backup-power option.

65kW Solar PV Input

The Felicity T-REX supports up to 65kW of solar PV input, allowing businesses to install a substantial solar array to offset grid electricity consumption.

Its maximum 1000V DC solar input voltage and wide 200–850V MPPT operating range provide flexibility when designing commercial PV strings.

99.9% MPPT Efficiency

The inverter features 2 Maximum Power Point Trackers (MPPTs) with a specified tracking efficiency of 99.9%.

Efficient MPPT technology helps the inverter extract the available power from connected solar arrays as conditions change throughout the day.

The inverter provides a maximum overall efficiency of 97.8% and European efficiency of 97.3%.

High-Voltage LiFePO₄ Battery Support

The T-REX-50KHP3G01 is a high-voltage hybrid inverter, designed for compatible LiFePO₄ battery systems operating between 180V and 600V DC.

It provides two independent battery inputs, allowing greater flexibility when designing high-capacity commercial energy-storage systems.

Maximum battery charging and discharging current is 50A.

RS485 and CAN communication enable integration between the inverter and compatible battery BMS systems.

Battery model, voltage configuration, BMS communication protocol and firmware compatibility should always be confirmed before installation.

Solar + Battery + Grid + Generator

One of the key advantages of a commercial hybrid inverter is the ability to manage multiple energy sources.

The Felicity T-REX can be incorporated into systems using:

Solar PV + High-Voltage Lithium Battery + Grid + Generator

Its programmable generator port provides additional flexibility for businesses where a generator forms part of the property's existing backup-power infrastructure.

Multiple Working Modes

The inverter supports multiple operating strategies, including:

• Self-Consumption Mode – Prioritises the use of locally generated energy.
• Backup Mode – Supports battery energy storage for backup applications.
• Grid-Tie Mode – Integrates the solar installation with the electricity grid.

This flexibility allows installers to configure the system according to the property's specific energy requirements.

Smart Cloud Monitoring

The integrated Smart Cloud Monitoring System provides remote access to system information, helping users and installers monitor the performance of the solar installation.

Combined with RS485 and CAN communication, the T-REX provides the communication infrastructure required for intelligent commercial energy management.

3.5-Inch Colour Touchscreen

A built-in 3.5-inch colour LCD touchscreen provides convenient local access to system information and inverter settings.

The touchscreen interface simplifies system monitoring and provides installers with easier access during setup, commissioning and diagnostics.

IP65 Protection for Demanding Installations

The Felicity T-REX features an IP65-rated enclosure, making it suitable for both indoor and appropriate outdoor installations.

Its intelligent air-cooling system helps manage operating temperatures, with a specified operating range from -25°C to +60°C.

Integrated Safety & Protection

The inverter incorporates multiple safety and protection functions, including:

• Battery Management System integration
• Surge protection
• Isolation protection
• System monitoring
• Intelligent thermal management

These protection features help provide safe and reliable operation when the inverter is installed and configured correctly.

Ideal Applications

The Felicity ESS T-REX 50kW is suitable for:

• Commercial solar installations
• Industrial solar systems
• Factories and manufacturing facilities
• Warehouses
• Farms and agricultural businesses
• Office buildings
• Retail properties
• Workshops
• Guest houses and lodges
• Large three-phase properties
• High-voltage battery storage systems
• Commercial backup power
• Hybrid solar installations
• Business solar systems

What's in the Box?

• 1 × Felicity ESS T-REX-50KHP3G01 50kW Hybrid Inverter
• 1 × User Manual
• 1 × RS485/CAN Communication Cable Set
• 1 × Mounting Kit
• 1 × AC/DC Connector Set
• 1 × Warranty Card

Warranty & Installation Requirements

The Felicity ESS T-REX inverter carries a 5-year warranty, with extension options available subject to applicable warranty conditions.

All inverters and batteries must be installed by a qualified electrical wireman or Master Electrician with valid registration with the Department of Labour.

A valid Electrical Certificate of Compliance (COC) must be issued after installation, specifically covering the installed backup or solar system.

The installation must comply with SANS 10142 and all applicable parts.

Warranty claims submitted without the required installation photographs, valid COC and proof that the equipment was installed by a qualified wireman or Master Electrician may be rejected, rendering the warranty claim null and void.

Why Choose the Felicity ESS T-REX 50kW?

The Felicity ESS T-REX-50KHP3G01 combines high-power three-phase output, substantial solar capacity and high-voltage battery storage within one commercial hybrid inverter platform.

With 50kW rated output, 65kW PV capacity, dual HV battery inputs, 99.9% MPPT efficiency, generator integration, Smart Cloud Monitoring and IP65 protection, it provides a comprehensive solution for South African businesses looking to invest in commercial solar and battery backup.