Magnetic door catches are great for almost any application where a lightweight door needs to stay closed and a mechanical latch is not needed. Some specific uses for magnetic door latches include drawers, HVAC panels, and can commonly be found in RVs and Industrial trucks and trailers where locking is not necessary but the jostling of roads can cause damage to doors and surrounding structures.
Being completely passive, magnetic latches are also great for durability. with no corrodible components, they can last a long time in even the harshest conditions. Typically you will find magnetic door catches with two components. the door catch with magnetic catches and a ferrous striker plate to attract to the catch and can hold around 5-15 lbs. depending on its size.
Additionally, they are very versatile as the magnetic catch can be mounted with or without the ferrous striker plate depending on the material it is being used on, and the striker plate does not have to be perfectly aligned like most catches or latches.