How to select a waterproof terminal box?
Generally, the material of the terminal box is Acrylonitrile-Butadiene-Styrene (ABS) and polycarbonate (PC). So how to select a waterproof terminal box?
1. Select the correct IP.
When selecting a waterproof terminal box, the IP protection level is a very important factor. According to IEC-60529, the first number of the IP (Ingress protection) is the ability of the housing to resist the intrusion of solid particles, while the second number represents the housing's ability to protect against water droplets.
IP is only defined for the housing, but the equipment should also meet the corresponding requirements after installation. That is to say, if the waterproof terminal box needs to be installed with a waterproof cable connector, its protection level should be higher than that of the box (The mainstream waterproof cable connectors on the market can meet the IP68 standard).
2. Select the correct size.
Of course, selecting the correct size waterproof box is based on the size of the existing components and the location of the device. However, we should also consider whether new components will be added in the future, and if so, whether his space is sufficient. Also note that the reference size provided by the terminal box supplier is the external or internal dimensions. It should also be noted that the installable space is usually smaller than the internal dimensions provided.
3. Pay attention to what parts are included in the standard configuration of the product.
The part number of most manufacturers (especially domestic manufacturers) does not reflect what standard accessories are included. In general, a terminal box contains a cover, a box body, a sealing strip, and a screw. To meet different needs, manufacturers will also have optional accessories such as floor installation, cable joints. In order not to cause any trouble afterwards, it is necessary to find out which are standard parts and which are optional accessories before ordering.
4. Consider the environment where equipment works.
The prices of waterproof terminal boxes vary greatly in price depending on the material. Before selecting, you should first find out whether the device will work indoors or outdoors for a long time. If it is the former, we recommend ABS waterproof terminal box with relatively lower price. ABS can fully meet the general needs of the room with its excellent comprehensive performance; if it is outdoor environment, it is best to use polycarbonate waterproof terminal box, which has better weather resistance, heat resistance, flame resistance, UV resistance, aging resistance and other properties but, of course, the price is higher.
The above four points must be paid attention to when selecting a waterproof terminal box.