Waterproof box is generally used as waterproof measures in construction, in many places have a very wide range of applications, which waterproof box has the difference between plastic waterproof box and cast aluminum waterproof box, the use and performance between the two is not the same, let's analyze it in detail.
The universal waterproof junction box is made of ABS engineering plastic injection molding, with dustproof, waterproof, anti-corrosion, insulation, impact resistance and other characteristics. The upper cover fastening screws are designed outside the water tank for a high level of protection, and the multiple internal mounting points provide maximum convenience for the installation of rails, circuit boards, power modules and expansion plates. In order to facilitate external installation of the equipment, the four corners of the waterproof junction box are provided with concealed screw holes. PC transparent cover is available for some models. Up to dozens of sizes can provide solutions for petrochemical plants, docks, sewage treatment plants, electroplating plants, gardens, residential lighting, rail transit, etc.
The cast aluminum waterproof junction box is die-cast with silicon aluminum alloy (AlSi12). The application of phosphating spraying surface treatment technology makes the cast aluminum waterproof box have a strong ability to adapt to the environment. Due to the characteristics of the metal itself, compared with similar plastic junction boxes, cast aluminum junction boxes also have the characteristics of heat dissipation, anti-static, flame retardant and so on. The operating temperature of -40℃ -120 ℃ can better adapt to the high and low temperature environment of the equipment. Most products are equipped with metal hangers to facilitate wall mounting of the device, the mounting boss at the bottom is pre-threaded for component mounting, and the internal mounting point can also be used for grounding of the electrical equipment housing.