A make contact is normally open, meaning no current flows.
When actuated, the contact closes, allowing current to flow.

A break contact is normally closed, meaning current does flow.
When actuated, the contact opens, interrupting the current flow.

Suitable for key switches with a depth of 54 mm. This circuit board disables the key switch function as soon as it is tampered with. After resetting the circuit board, the key switch can be used again.