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3000W 12V low frequency pure sine wave off-grid inverter (peak power 9000W)

3000W 12V low frequency pure sine wave off-grid inverter (peak power 9000W)

SKU:LK3000

Regular price Β£649.99 GBP
Regular price Sale price Β£649.99 GBP
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Imagine having reliable power for all your essential appliances, no matter where you are. The 3000W 12V Low Frequency Pure Sine Wave Off-Grid Inverter (with a powerful 9000W peak) makes this a reality. It's your ultimate solution for converting battery power into stable, clean electricity, perfect for motorhomes, boats, remote cabins, or as a reliable backup during power cuts. Enjoy the freedom and comfort of having mains-quality power for your TV, fridge, laptop, and more, giving you true energy independence and peace of mind.


This powerful inverter comes packed with features designed to meet your off-grid and backup power needs:

  • Robust Power Output: Provides 3000W of continuous power with an impressive 9000W peak, capable of starting demanding appliances.
  • Pure Sine Wave Technology: Delivers clean, stable 230V AC power, identical to your home's mains electricity, ensuring safe operation for all sensitive electronics and motor-driven appliances.
  • Low Frequency Design: Built with sturdy transformers, this inverter is more durable and less prone to damage than high-frequency models, offering a superior surge capacity (up to 300% nominal power for several seconds).
  • Integrated Battery Charger: Features a fast, built-in 90A charger (adjustable from 18A to 90A) with advanced 4-step charging, compatible with various battery types like sealed lead acid, gel, AGM, and calcium.
  • Flexible Power Modes:
    • AC Priority Mode: Automatically charges batteries from mains and powers appliances from mains when connected.
    • DC Priority Mode: Always powers appliances from batteries, even if mains input is available.
  • Energy-Saving Mode: Operates in "power on demand" standby, generating power only when a load is detected, which saves energy and battery life.
  • Uninterrupted Power Supply (UPS): Automatically switches to battery power during mains outages, ensuring your appliances stay on without interruption.
  • Bypass Functionality: When mains power is connected in AC priority mode, it efficiently routes mains directly to your appliances, bypassing inverter circuits and boosting overall efficiency.
  • Clear LCD Display: Monitor important information like voltages, battery status, and current operating mode at a glance.
  • Generator Compatible: Easily accepts AC power input from a generator (recommended nominal power at least twice the inverter's rated power).
  • Customizable Settings: Adjust output voltage (208V, 220V, 230V, 240V), output frequency (50Hz, 60Hz, auto), input voltage thresholds, and battery type/capacity to suit your specific setup.
  • Wide Appliance Compatibility: Suitable for powering most household appliances, including fridges, microwaves, TVs, power tools, vacuum cleaners, and kitchen appliances (Note: not suitable for cookers).
  • Comprehensive Protection: Equipped with essential safety features including overload, over-temperature, low battery, and overcharge protection.

Beyond its core features, this inverter offers specific advantages for enhanced performance and ease of use:

  • Automatic Battery Charging: When your battery charge drops below a set level, the inverter automatically uses mains input to charge your batteries and power appliances, ensuring continuous operation.
  • Robust Construction: The low-frequency design, utilizing heavy-duty transformers, makes this unit exceptionally strong and sturdy, ensuring long-term reliability even in challenging environments.

Technical Specifications:

  • Input: 12V DC
  • Output Voltage: 208V / 220V / 230V / 240V (programmable)
  • Output Frequency: 50Hz / 60Hz / auto (programmable)
  • Output Wave: Pure Sine Wave
  • Input Voltage Range: Normal or Wide (programmable)
  • Battery Bank Types: Sealed Lead Acid, Gel, AGM, Calcium (programmable)
  • Battery Charging Current Options: 18A / 36A / 54A / 72A / 90A (programmable)
  • Power Rating: 3000W nominal, 9000W peak
  • Nominal Inverter Efficiency: 88%
  • Minimum Battery Voltage: 10V
  • Low Battery Alert: 10.5V
  • Overcharge Protection Voltage: 15.7V
  • Power Factor: 0.9-1.0
  • Operating Temperature Range: 0 - 40Β°C
  • Weight: 26 kg
  • Size: 44.2 x 21.8 x 17.9 cm

Important Notes for Installation and Use:

  • This inverter features AC power screw terminals instead of standard mains power sockets. This allows for flexible and secure connection to one or multiple AC mains power sockets using appropriate AC cables.
  • Please note that connecting cables are not supplied with the inverter. Detailed recommendations for suitable cable length and thickness are provided in the comprehensive user manual.
  • The product includes a 1-year manufacturer warranty for your peace of mind.
  • A detailed user manual is provided, explaining all aspects of wiring, installation, and operation.
  • Should you require any assistance with installation or have technical questions, our team is available to provide free support via email or phone.

Choose this 3000W Low Frequency Pure Sine Wave Inverter for unmatched reliability and consistent power wherever you need it. Whether you're enhancing your off-grid lifestyle, equipping a mobile home, or preparing for unexpected power outages, this inverter provides the stable, clean electricity you can depend on. Invest in true energy independence and enjoy uninterrupted power for all your essential devices and appliances.

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