1.explosion proof 2,corrosion proof 3,BMC composite material 4,quality guarantee Explosion proof junction box Anti-explosion power junction box used to connect ... 1,When find the junction box broken,shell deformation,crack,pls don’t use it and replace new one.2,When install the heating ... choose 3×2.5mm2.rubber cable,If the current higher than 15A,choose 3×4mm2 rubber cable.5,The power junction box have ...