Inverex Nitrox 3kW Hybrid Inverter 1 Phase LV IP65 (5Y)

Yes, the Inverex Nitrox 3kW Single Phase Hybrid Inverter is the best entry-level hybrid inverter for apartments and small homes in Pakistan. It can simultaneously run ceiling fans (50W each), LED lights (10W each), a refrigerator (150W), LED TV (100W) and a desktop computer (200W) — a combined load of 800-1200W, well within its 3000W capacity. For an 80-120 gaz apartment in Karachi experiencing 6-8 hours of K-Electric load shedding, pairing it with a 24V 100Ah LiFePO4 battery provides 4-6 hours of backup for essential loads. It is significantly better than a conventional UPS because it charges from solar panels during the day, reducing your electricity bill by 40-60% on sunny days. In Lahore, the same setup handles LESCO load shedding comfortably in winter months when AC demand is low.

The Inverex Nitrox 3kW operates on a 24V low voltage battery system and is compatible with both Lead-Acid and Lithium-ion batteries in the 20-30V voltage range. LiFePO4 lithium batteries are strongly recommended over lead-acid for three key reasons: they deliver 100% depth of discharge versus 50% for lead-acid, last 6000+ cycles versus 300-500 cycles, and require zero maintenance. For a 3kW inverter in a small Pakistani home, a 24V 100Ah LiFePO4 battery (2.4kWh usable) is the minimum recommended size. It uses self-adaption to BMS technology for automatic communication with the battery management system, ensuring safe and optimal charging at all times. Compared to SAJ H2 or GoodWe ES Uniq which use 48V systems, the Nitrox 3kW is one of the few modern hybrid inverters still supporting 24V — ideal for buyers with existing 24V lead-acid battery banks.

Yes, the Inverex Nitrox 3kW supports AC coupling, allowing it to be retrofitted alongside an existing solar system without replacing your solar panels. This makes it an excellent and cost-effective upgrade for homes in Pakistan that already have a basic solar setup but want to add battery backup. The AC coupling feature is particularly valuable in Karachi and Lahore where many homeowners installed basic on-grid solar systems in 2021-2023 and now want to add backup capability for load shedding without a complete system replacement. The inverter manages power flow intelligently between solar panels, battery, grid and loads — prioritising solar, then battery, then grid in sequence. It also supports diesel generator connection as a fourth power source for extended outages.

The Inverex Nitrox 3kW comes with a 5-year manufacturer warranty from APT Inverex Solar Energy, Pakistan leading local solar brand. Unlike imported brands such as SAJ or GoodWe where warranty claims often require international coordination, Inverex has an established nationwide service and spare parts network across Karachi, Lahore, Islamabad, Faisalabad, Peshawar and other major cities. This means warranty claims are resolved locally, replacement parts are stocked domestically, and field technicians are available for on-site support. Always purchase from an authorised Inverex dealer like MartOnline to ensure genuine warranty coverage — grey market imports do not qualify for manufacturer warranty. For a small home system, the 5-year warranty combined with Inverex local support makes it a lower-risk choice than similarly priced imported alternatives.

The Inverex Nitrox 3kW has a single MPPT input supporting up to 4000W of solar panel capacity with a maximum DC input voltage of 500V. You can connect 8-10 solar panels of 400-500W each in a single string configuration. In Pakistan where 400W Tier-1 monocrystalline panels are the most common and cost-effective choice, 10 panels of 400W gives exactly 4000W — the maximum the inverter can harvest. On a typical Karachi day with 5-6 peak sun hours, this generates 20-24kWh of electricity, enough to run essential appliances and fully charge a 2.4kWh battery with surplus energy. For apartments with limited roof space of 200-300 square feet, 6-8 panels of 400W are more practical, generating 14-19kWh daily — still enough to cover most of the day electricity needs and reduce the monthly K-Electric bill significantly.