1. Excellent Performance20 Amp AC DC 400V solar panel disconnect switch, no polarity, IP65 waterproof box. Rated Voltage: DC 12-400V protect - and + pole or AC 90~400V protect L and N pole. 2. Delicate DesignThe waterproof shell is made of PC material with an IP65 waterproof rating and UV resistance, making it suitable for outdoor use. Additionally, flame retardants have been added to ensure safety with a V1 flame retardant rating. The transparent cover also facilitates checking the status of the circuit breaker. 3. Easy to Use Solar Disconnect Switch with MC solar connector, integrated version already installed, faster and safer installation, plug and play. ACDC circuit breakers are designed to be more precise trips based on current, even in extreme temperatures ranging from -40ºC to 85ºC, without re-rating. 4. Widely ApplicationThe 20 amp circuit breaker box is suitable for photovoltaic solar panel grid-connected system and solar off-grid system solar power system, photovoltaic array, RV solar.