Electrical contactor
Electrical contactors are electrically operated switches used for controlling motors and other types of electrical loads. Various types of electrical contact systems are well known and generally function to open or close at least one electrical contact for controlling the flow of electrical power from an electrical supply to some type of electrical or electromechanical device. Electrical contacting devices are used in a number of electro-mechanical applications to make and break electrical circuits. In essence contactors are switches which connect medium to large power consuming electrical loads, such as for instance electric motors, to a commercial power system. When combined with overload protection for a motor, the device is referred to as a motor starter. The purpose of the electrical contactor is to allow for either manual or automatic control of the electrical device so that its operation can be stopped and started either in normal operation or during abnormal operation where the supply of electrical current exceeds some type of desired maximum whereupon the electrical contactor opens and terminates flow of electrical power into the device. Typically, electrical contactors have two conductive surfaces and a contact member formed of a conductive material, wherein at least one of the conductive surfaces is attached to an electrical source. When the contact member is positioned such that it makes contact with both of the conductive surfaces, it electrically couples the two conductive surfaces, thereby making an electrical circuit. Conversely, when the contact member no longer makes contact with both conductive surfaces, then it no longer electrically bridges the conductive surfaces and the circuit is broken. Electrical contactors that interface chips and printed circuit boards that test the chips typically use conductive wires or spheres to conduct electrical signals between the chip and the printed circuit board and to ground the chip on the printed circuit board. There are presently two types of contactors used to temporarily connect to miniature electronic devices for the purpose of electrical measurement: A "wiping" or cantilever contactor, and an actuated contactor.
There's no product listing here. Be the first to
submit your product information.
Related products