Series connection [t-head2-col]

Q1 is controlled by a series circuit consisting of three make contacts (AND circuit).

Q2” is actuated via three normally closed contacts connected in series (NAND circuit).

In the easy circuit diagram, you can connect up to three make or break contacts in series within a rung. Use M marker relays if you need to connect more than three make contacts in series.

Logic table [t-head3]