Understanding Form A, Form B, Form C Contact Configuration Relays
Form C Contact. This type of contact controls two circuits: Form y = nc with both terminals disconnected when off.
It is hermetically sealed with 3 leads: This type of contact controls two circuits: Form y = nc with both terminals disconnected when off. A form c contact is also called spdt. When operated the common contact will swing from the normally closed contact to the normally open contact. Form c contact assembly has three terminals. Form c is a combination. These contacts have a common terminal. A form c isolated relay would have three terminals. They can be part of any type of a relay or auxiliary switch.
This is caused by the magnetic field produced by a coil or the magnetic field from a magnet. There is a common electrical connection between a contact of each pair that results in only three connection terminals. Form c contact assembly has three terminals. Web a form c reed switch is essentially a single pole double throw reed switch. One normally open and one normally closed. Web a single form c contact isn’t much good unless you are trying to design a system whose pl only requires pl a or pl b, but adding a second contact to this device adds the possibility of monitoring the relay. A form c contact is also called spdt. It is hermetically sealed with 3 leads: This is caused by the magnetic field produced by a coil or the magnetic field from a magnet. Form y = nc with both terminals disconnected when off. Web a dry contact is one that is a hard contact such as a relay or switch (as opposed to a triac or transistor).
