Feature: 1. Safe Protection: Including overvoltage protection, overload protection and lightning protection functions, which can provide long distance communication and extend the working life of the solar system. 2. Great in Design: Equipped with the reliable DC modules to maximize the protection of photovoltaic DC disconnectors. The transparent cover is also convenient for checking the status of the circuit breaker. 3. For Outdoor Use: The disconnector is allowed to be installed indoors and outdoors, with built in DC switchgear, which can be effectively protected in severe weather and environment. 4. Extensive Using: Applicable to photovoltaic solar panel grid connected system and solar off grid system, solar power generation system. For household, RV, etc. 5. Easy to Install: The solar photovoltaic DC combiner box can be installed between solar panel and solar inverter, just plug and play. Specification: Item Type: Circuit Breaker Model: BOB7Z-63 20A Maximum Voltage: 1000V Maximum DC Short Circuit Current Isc of Each Input: 20A Material Type: Polycarbonate, ABS. Protection Grade: IP65 Product Size: Approx. 120 x 52 x 90mm / 4.72 x 2.05 x 3.54in Cable Inlet: PG20 4² Output Cable Gland: PG20 4² Rated Insulation Voltage Ui: 1000V Rated Current Le: 20A Maximum Working Voltage Ucpv: 1000V Rated Working Voltage: 1000V Segment Capacity ICU=6KA Widely Application: Applicable to photovoltaic solar panel grid connected system and solar off grid system solar power generation system. Household, RV, etc. . Package List: 1 x Circuit Breaker2 x Connector Cover2 x Connector2 x Waterproof Ring2 x Waterproof Rubber Head3 x Short Screw4 x Long Screw4 x Flat Screw4 x Wall Plug1 x Waterproof Tape