SCOPE OF APPLICATION SISO-40/F, SISO-40/M, SISO-40/MF, SISO-40/S DC isolating switch waterproof bus-box is suitable for photovoltaic system.The voltage Ue:DC1500V, The rated current le:40A and below, as the wiring device in the system, it has the function the orderly connection of photovoltaic modules.The confluence box can confluence the photovoltaic series electric energy,the form a complete photovoltaic and wind power generation system through the controller and inverter, so as to realize also application in off-grid, energy storage system and maintenance function.It can match DC circuit breaker,fuse,surge protector,MC4 connector,M25 waterproof connector and photovoltaic cable connector.(IP66) protection performance,with super waterproof,dustproof,anti-corrosion, anti-ultraviolet and other characteristics