C Pro Series 3 and 5 kW Single Phase Off Grid Inverters

The C Pro Series is an MPPT-based single-phase off-grid inverter family designed for projects that require higher PV input voltage, battery-management communication, and remote system visibility. Its pure sine-wave output supports conventional residential and light-commercial loads, while the selectable AC input range allows the project engineer to choose operating behaviour suited to computer equipment or broader household-appliance tolerances.

The 3 kW model uses a 24 V battery architecture and supports up to 3000 W of PV input, while the 5 kW model uses a 48 V battery system and supports up to 5000 W of PV power. Their MPPT operating windows are 60-400 V DC and 120-450 V DC respectively, enabling longer PV strings than the New Basic MPPT models.

Battery-independent operation provides additional project flexibility where PV energy is expected to support loads without a connected battery under suitable operating conditions. RS232/RS485 communication and Wi-Fi monitoring support enable integration with compatible BMS and remote-monitoring arrangements. The final supplied communication configuration should be confirmed during project specification because the official technical table lists Wi-Fi as optional.

Key Features

• 3 kW and 5 kW single-phase models
• Pure sine-wave output
• MPPT solar charging
• Wide high-voltage PV operating range
• Battery-independent operating capability
• BMS communication support
• Remote-monitoring capability
• Grid and generator input compatibility
• High charging-current support
• Integrated dust-protection design

Recommended Applications

• Medium-size remote homes and rural villas
• Farm buildings, barns, workshops, and field offices
• Small commercial premises in weak-grid regions
• Telecom and technical service installations
• Generator-assisted PV and battery systems
• Systems requiring lithium-battery BMS communication
• Battery-optional solar power architectures

Engineering and Selection Notes

• Confirm whether the project requires battery-connected or battery-independent operation and design the PV start/operating conditions accordingly.
• The PV string must remain inside the applicable MPPT window during operation and below the maximum open-circuit voltage under the coldest site condition.
• Select 24 V or 48 V battery architecture according to the inverter model; these battery voltages are not interchangeable.
• Confirm the supplied Wi-Fi/communication hardware and compatible battery BMS protocol before order finalisation.
• Check surge demand for motors, pumps, compressors, and transformers separately from continuous rated power.