The Mastervolt AC Master Inverter 12/300 230V is a pure sine wave inverter that converts 12V battery voltage into reliable 230V alternating current with IEC socket compatibility. This successor model to the 28010300 delivers clean, stable power comparable to standard household electricity, ensuring the smooth operation of sensitive electronic devices. The inverter uses high-frequency switching technology to eliminate audible hum or buzz. With a continuous power output of 300W at 25°C and 250W at 40°C, along with a peak power of 600W, this unit handles demanding applications with a high efficiency of 90 percent. The pure sine wave prevents power issues and device damage that often occur with modified sine wave inverters, making it suitable for modern electronics such as laptops, televisions, and coffee machines. Installation is straightforward, with compact dimensions of 210x130x60 mm and a lightweight design at 1.16 kg. Comprehensive safety features include protection against overload, short circuit, high temperature, and high/low battery voltage. The temperature-controlled fan provides quiet operation at low power and optimal cooling under full load. Technical specifications include a 230V output voltage at 50Hz with ±0.1 percent accuracy, a rated input current of 22.5A at full load, and a no-load consumption of only 0.33A (4W) in energy-saving mode. The unit requires a minimum battery capacity of 60Ah and includes standard 1.5-meter DC cables. The operating temperature range is from 0°C to 40°C, with automatic shutdown at 50°C and self-recovery after cooling down. Certified with CE, E-mark, and ABYC A-31 standards, this inverter has an IP23 protection rating and is designed for vertical wall mounting.