Litherra 3kW Low Frequency Inverter Charger

Reliable Power. Built for Demanding Off-Grid Life.

Main Description — Litherra 3kW Low Frequency Inverter Charger

The Litherra 3kW Low Frequency Inverter Charger is engineered to provide an extremely robust and durable power supply for serious off-grid vehicle life. Built using a low-frequency transformer-based design, it delivers reliable pure sine wave output suitable for powering sensitive electronics as well as high-demand appliances.

A built-in neutral-earth bond ensures safe and compliant integration into motorhome electrical systems, simplifying installation and improving safety. The inverter features automatic AC pass-through, allowing incoming shore or generator power to supply loads directly when available while simultaneously charging the battery.

Advanced features such as Litherra Shore Assist allow the inverter to boost low-amperage shore supplies by automatically supplementing available power with stored battery energy, preventing overload trips and allowing larger loads to run reliably. With a high-capacity 120A battery charger and exceptionally low standby consumption of just 14W, the unit delivers both powerful charging performance and efficient long-term operation.

Built-in Bluetooth connectivity allows smart monitoring through the Litherra app, and like all Zenith products, the inverter can be fully integrated into the Zenith System for complete monitoring and control from anywhere in the world.

Zenith System Compatibility & Expansion

Like all Litherra Zenith products, the 3kW Low Frequency Inverter Charger is designed to operate as part of a fully integrated and expandable system. When connected to the Zenith Control Unit and display system, it allows real-time monitoring of inverter performance, charging activity, and power usage.

Combined with Zenith charging systems, distribution units, and battery monitoring components, it forms part of a fully integrated off-grid power solution capable of supporting demanding electrical loads while maintaining a clean and simplified installation architecture.

Technical Specifications

Key Specifications

• 3000 W Continuous Pure Sine Wave Output
• 6000 W Peak Output Power
• Design Low-frequency transformer
• 120 A Integrated Battery Charger (12 V Model)
• AC pass-through Automatic
• Litherra Shore Assist Compatible
• Standby consumption <14 W
• UPS Transfer Time <10 ms
• Bluetooth, CAN, and RS485 communication: Supported Supported

Inverter Specifications

• Rated Output Power 3000 W
• Maximum Output Power 6000 W
• Output Voltage 220 / 230 / 240 VAC ±2%
• Waveform Pure Sine Wave
• Output Frequency 50 Hz / 60 Hz
• Rated Efficiency >87%
• Maximum Efficiency >94%
• No-load Consumption <14 W
• UPS Transfer Time <10 ms

Charger Specifications

• AC Input Voltage 180–256 VAC
• AC Input Frequency 45–65 Hz
• Maximum Charging Current 120 A (12 V model)
• Adjustable Charging Current 0–120 A
• Maximum AC Input Current Adjustable 6–32 A

Battery Specifications

• Rated Battery Voltage 12 VDC
• Supported Battery Types USE / FLD / GEL / LI / SLD

AC Output Specifications

• AC Output 1 Bypass Load Current 32 A
• AC Output 2 Bypass Load Current 30 A
• Inverter Output Switching Voltage 12.8 V (adjustable)

Physical Specifications

• Dimensions 470 × 280 × 157 mm
• Weight 23.35 kg
• Cooling Method Cooling Method: Natural cooling with Intelligent Fan
• Protection Rating IP20

Environmental Specifications

• Operating Temperature Range −20°C to 60°C
• Humidity 0–95%

Communication Interfaces

• Bluetooth communication Supported
• CAN (RV‑C protocol)
• RS485 communication: Supported Supported