Composed as a sturdy box type using steel or iron sus angel, and designed to withstand mechanical, electrical, and temperature stresses from shocks, vibrations, and short circuit accidents that can happen on a ship.

1. The switch is easily accessible from the front and rear.
2. It needs to be installed on a wall with a ventilation window, away from combustible an acid gases.
3. There should be proper treatment if a pipe is installed over the switchboard.