Form C Contacts - When the relay is not energized, the normally closed contacts are closed, and the normally open contacts are open. Form a contacts (called normally open (no) contacts) form b contacts (called normally closed (nc) contacts) form c contacts structured by combining form a and form b contacts; Web in general, the following contact methods are used for switches. When the relay is energized, the opposite occurs—the normally closed contacts open, and the normally open contacts close. Web form c contacts, also known as “changeover” or “transfer” contacts, are a specific type of contact arrangement commonly used in relays, switches, and other electrical devices. Even the same contact method has various names. Web form c (or changeover/co) relays have a set of normally open contacts and a set of normally closed contacts.
Form a contacts (called normally open (no) contacts) form b contacts (called normally closed (nc) contacts) form c contacts structured by combining form a and form b contacts; When the relay is energized, the opposite occurs—the normally closed contacts open, and the normally open contacts close. Web in general, the following contact methods are used for switches. Web form c contacts, also known as “changeover” or “transfer” contacts, are a specific type of contact arrangement commonly used in relays, switches, and other electrical devices. Web form c (or changeover/co) relays have a set of normally open contacts and a set of normally closed contacts. When the relay is not energized, the normally closed contacts are closed, and the normally open contacts are open. Even the same contact method has various names.