Off-Grid Hybrid Inverter 6kW 48V or 4kW 24V, Pure Sine, MPPT 80A to 120A, 230V, WiFi

Meet the Off-Grid Hybrid Inverter SMR II — a versatile, high-efficiency power solution available in 6kW 48V and 4kW 24V configurations. Designed for true off-grid living, this inverter delivers a reliable pure sine wave at 230V with intelligent MPPT charging and built-in WiFi monitoring. It prioritizes solar power or grid/generator input as needed, while supporting battery-enabled and battery-free operation (PV voltage must exceed 200V to run without a battery).

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Benefits & Tips

• Pure Sine Wave AC output ensures compatibility with sensitive electronics and household appliances.
• Smart, flexible charging with MPPT solar charger (60–450VDC) up to 120A allows optimized battery performance and faster solar recharging.
• Works with lithium or lead-acid batteries and can be used with or without a battery, offering adaptability for different solar setups and budgets.
• WiFi monitoring keeps you informed about system health, charge status, and energy production from anywhere.

Product specifications

• Model variants:
  • Isolar SMR II 6KW WIFI — Rated Power: 6000VA/6000W; Dimensions: 400x300x115 mm; Net Weight: 9 kg
  • Isolar SMR II 4KW WIFI — Rated Power: 4000VA/4000W; Dimensions: 400x300x115 mm; Net Weight: 8.5 kg
  • Isolar SMR II 3.2KW WiFi — Rated Power: 3200VA/3200W; Dimensions: 348x270x95 mm; Net Weight: 5.5 kg
• AC input: 230 VAC
• Voltage ranges: 170–280 VAC (for personal computers); 90–280 VAC (for home appliances)
• Frequency: 50/60 Hz (autosensing)
• AC output surge power: 8000 VA (4KW variant); 12000 VA (6KW variant); 6400 VA (3.2KW variant)
• AC output voltage regulation: 230 VAC ±5%
• Rated frequency: 50/60 Hz
• Efficiency (peak): 93%
• Transfer time: 10 ms (PCs); 20 ms (Home appliances)
• Battery voltage: 24 VDC or 48 VDC
• Floating charge voltage: 27 VDC (24V), 54 VDC (48V)
• Overcharge protection: 33 VDC (24V), 63 VDC (48V)
• Battery type: Lithium or Lead-acid
• Maximum PV array open-circuit voltage: 500 VDC
• Maximum PV array power: 5000 W (SMR II 4KW); 6000 W (SMR II 6KW); 3500 W (SMR II 3.2KW)
• MPPT voltage range: 60–450 VDC
• Maximum MPPT input current: 27 A (SMR II 4KW); 15 A (SMR II 6KW)
• MPPT tracker/strings: 1
• Maximum solar charge current: 120 A (SMR II 4KW); 80 A (SMR II 6KW)
• Maximum AC charge current: 100 A (SMR II 4KW); 60 A (SMR II 6KW)
• Maximum charge current: 120 A (SMR II 4KW); 80 A (SMR II 6KW)
• Protection & features: AC over current, AC over voltage, over temperature protection
• Smart load management: Optional on some models
• CAN communication for BMS; WiFi monitoring
• Operation temperature: -10°C to 50°C
• Relative humidity: 5% to 95% non-condensing
• Altitude derating up to 2000 m
• Interfaces: RS232, USB, CAN & RS485, WiFi
• Safety standards: EN/IEC 62109-1, EN/IEC 62109-2

Package includes:

• Inverter unit

Warnings/Reminders

• When operating without a battery, PV voltage must be above 200V.
• Ensure PV array open voltage does not exceed 500 VDC and total PV power matches the model specification.
• Operate within the stated temperature (-10°C to 50°C) and altitude (up to 2000 m derating) limits for reliable performance.

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