Door Interlocking System

The door interlocking system is used to control the entry of a person to a secure area such as a clean room, research lab, etc. where dust or small particles may be a problem or security is of high concern. In its simplest form, the door interlocking is composed of 2 doors that are electrically interlocked in such a way that the doors cannot be opened simultaneously. Another example of Door Interlocking is Man trap.