Litherra Mono MPPT Solar Controller

Efficient Solar Charging. Silent Operation. Built for Every System.

The Litherra Mono MPPT Solar Controller range provides efficient and reliable solar charging in a compact and easy-to-install design, available in multiple power levels to suit a wide range of motorhome and off-grid systems. Using advanced MPPT technology, the Mono controllers maximise solar energy harvest while delivering stable charging performance across 12V and 24V battery systems.

Designed for quiet operation with passive cooling, the units operate silently while maintaining high efficiency in demanding environments. With support for multiple battery types including lithium, sealed, gel, and flooded batteries, the Mono range offers flexible compatibility for modern energy systems.

Built-in communication capability allows monitoring through the Litherra smart app, while integration with Zenith system components enables full visibility of solar charging performance as part of a complete off-grid power system.

Zenith System Compatibility & Expansion

Like all Litherra Zenith products, the Mono MPPT Solar Controller range is designed to operate as either a standalone solar charging solution or as part of a fully integrated Zenith System. When connected to the Zenith Control Unit and display system, solar performance data can be monitored in real time alongside battery and load information.

Multiple Mono units can be used across different system sizes, allowing solar capacity to grow as energy requirements increase while maintaining clean and simplified installation architecture.

Technical Specifications

Key Specifications

• Available in 20 A, 30 A, 40 A and 50 A models
• MPPT Tracking Efficiency >99%
• Maximum Conversion Efficiency ≤98%
• Supported battery systems 12 V and 24 V
• Passive Cooling Silent operation
• Supported battery types Lithium and lead-acid
• Design Compact and lightweight
• Bluetooth monitoring Supported (with module)

Mono 20 Specifications

• Charge Current 20 A
• Max PV Power (12 V) 260 W
• Max PV Power (24 V) 520 W

Mono 30 Specifications

• Charge Current 30 A
• Max PV Power (12 V) 400 W
• Max PV Power (24 V) 800 W

Mono 40 Specifications

• Charge Current 40 A
• Max PV Power (12 V) 550 W
• Max PV Power (24 V) 1100 W

Mono 50 Specifications

• Charge Current 50 A
• Max PV Power (12 V) 660 W
• Max PV Power (24 V) 1320 W

Battery Specifications

• Battery Types Lithium, Battery Type: Battery Type: Gel, Flooded, Sealed, User Defined
• Rated Battery Voltage 12 V / 24 V
• Battery Voltage Range 9–32 V
• Efficiency
• MPPT Tracking Efficiency >99%
• Maximum Conversion Efficiency ≤98%

Physical Specifications

• Mono 20 Dimensions 150 × 105.6 × 61.5 mm — Weight: 0.65 kg
• Mono 30 Dimensions 150 × 105.6 × 67.5 mm — Weight: 0.83 kg
• Mono 40 Dimensions 183 × 127 × 65.5 mm — Weight: 1.04 kg
• Mono 50 Dimensions 183 × 127 × 69.5 mm — Weight: 1.335 kg

Environmental Specifications

• Operating Temperature Range −35°C to 60°C
• Protection Rating IP32