The Narva battery master switch is a compact and weather-resistant isolation solution designed for use in both 12V and 24V systems. Featuring an IP56 rating, it offers protection against dust and water, making it suitable for outdoor and exposed installations. Fitted with a removable key for added security, it provides a reliable way to disconnect power for theft prevention, maintenance, or storage. The switch is rated at 100A continuous load at 12V and 50A at 24V, delivering dependable performance in light commercial, recreational, and marine environments where durability and safety are essential.