Household Inverter丨Off-Grid Inverter丨BK-VM-3KVA

Product Overview

The BK-VM-3KVA is a wall-mounted 230 V off-grid inverter-controller combo unit that integrates an MPPT solar controller, pure sine wave inverter, 24 V intelligent battery management, and UPS-level switching. With dimensions of just 95 × 270 × 348 mm and weighing only 5 kg, it can be installed on a wall in under 30 minutes, providing 24/7 stable green power for residential, RV, and small commercial applications. 

Application

• Urban balconies/roofs

3 kW panels + battery capacity up to 5 kWh, achieving 60–80% self-generation and self-consumption.

• RVs/campers

Lightweight 24 V system, 400–600 W panels on the roof, providing uninterrupted power for 1–2 days in the wilderness.

• Off-grid/low-power rural areas

Power water pumps, TVs, lighting, and internet, enjoying modern life even without grid connection.

• Small businesses

Convenience stores, clinics, charging stations, automatic power supply during outages, eliminating the need for diesel generators.

• Emergency backup power

Parallel operation with small gasoline/diesel generators, peak shaving, saving 30% fuel and reducing noise by 50%.

Product Features

• Ultra-wide MPPT

90–430 V input, 3 kW PV power, full-load generation even in low-light conditions.

• 10 ms UPS True Switching

Seamless integration between grid power, PV, and battery, ensuring zero power interruptions for computers.

• Surge 2×Rated

5-second 150% overload output, easily starting inductive loads such as refrigerators and water pumps.

• Battery Full Compatibility

24 V lead-acid & lithium-ion three-stage charging, with a maximum charging current of 60 A, and expandable plug-and-play functionality.

• Cloud Monitoring (Optional)

Built-in Wi-Fi, real-time monitoring of power generation, consumption, and SOC via mobile app. 

• Harsh Environments

Full-power operation from -10°C to 50°C, removable dust filter, suitable for deserts, islands, and high-altitude regions. 

• Lightweight and Portable

5 kg, easily carried with one hand, ideal for RV camping and moving. 

Specifications