About this item 【RATED VOLTAGE】This circuit breaker can use DC 12‑400V to preserve ‑ and + poles or AC 90‑400V to preserve L and N poles. 【IP65 WATERPROOF】The isolator switch is IP65 waterproof grade, which is not afraid of rainy days and can be used safely outdoors, which can be effectively protected in severe weather and environment. 【TRANSPARENT COVER】The transparent upper cover of the circuit breaker box is convenient for user to check the status of the device. 【APPLICABLE CABLE】This PV solar disconnect switch is suitable for 6 to 8.7mm diameter, 7 to 5 AWG cables. 【EXTENSIVE USING】This disconnect switch is suitable for photovoltaic solar panel grid connection systems and solar off grid systems solar power generation systems, PV array, RV solar energy, etc. › See more product details