How To Choose Waterproof Junction Box Correctly?

1. Correctly choose the sealing level

When purchasing waterproof connection box, IP protection level is a very important factor. According to IEC-60529, the first digit of the IP (Ingress protection) level is the ability of the shell to resist the intrusion of solid particles, while the second digit indicates the shell's ability to protect against water droplets. Most waterproof plug box IP levels reach IP65 (a few reach IP66), which means that they can adapt to more demanding use environments.

The IP level is only defined for the shell, but the equipment should also meet the corresponding requirements after installation. That is to say, if the water tight electrical box needs to install a cable connector, its protection level should be higher than the box (the mainstream waterproof cable connectors on the market can reach the IP68 standard).

2. Choose the right size

Of course, choosing the right size of waterproof cable box is first determined by the size of the existing components and the location where the equipment is to be placed. However, we should also consider whether new components will be added in the future, and if so, whether there is enough space. Also note that the reference dimensions provided by the plastic weatherproof electrical box supplier are the external dimensions or the internal dimensions (other manufacturers may have different requirements. The installable space is usually smaller than the internal dimensions provided, which should also be noted).