... , 2,21,22 3 IP55 4 Aluminum-alloy Terminal/junction box without hole on lidone entry on top side(cable diameter ... (cable diameter:Φ7~9mm/Φ8~12mm/11~17mm)Terminal/junction box with hole on lidone entry on top side(cable diameter ... (cable diameter:Φ7~9mm/Φ8~12mm/11~17mm) Junction/terminal box, aluminum alloy explosion-proof box