Description

Mercury switches have one or more sets of?electrical contacts?in a sealed?glass?envelope that contains a small quantity of mercury. The envelope may also contain hydrogen at pressure, an?inert gas, or a vacuum. Gravity constantly pulls the drop of mercury to the lowest point in the envelope. When the switch is tilted in the appropriate direction, the mercury touches a set of contacts, thus completing an electrical circuit. Tilting the switch in the opposite direction moves the mercury away from that set of contacts, breaking that circuit.

Features:

The contacts are enclosed, so oxidation of the contact points is impossible.
In?hazardous locations, interrupting the circuit does not emit a spark that could ignite flammable gases.
Contacts stay clean, and even if an internal arc occurs, the contact surfaces renew on every operation, so they don??t wear out.
Even a small drop of mercury has low resistance, so switches can carry useful amounts of current in a small size.
The sensitivity of the drop to gravity provides a unique sensing function and lends itself to simple, low-force mechanisms for manual or automatic operation.
The switches are quiet, as no contacts abruptly snap together.
The mass of the moving mercury drop provides an?over-center?effect to avoid?chattering?as the switch tilts.

Package Includes:
1 x Mercury Tilt Switch ?? 10Pcs.