Normally Closed Magnetic Door Switch

Nc switches are the opposite.

Normally closed magnetic door switch.

4x cabinet lamp switch wardrobe touch switches drawers open on close door applicable to 12v 24v 110v black. They re often used to detect when a door or window opens and can be used with movable machine guards. Put another way if you have a meter capable of displaying when it sees a closed circuit short or an open circuit and you attach the meter to the wires or screw terminals for the contact with the magnet next to the contact the normal position if you read an open then the device is normally open and if you read a short then the device is normally closed. The internal switch is closed when the magnet is against the switch.

Round magnetic normally open. All are rated ip67 for protection from washdowns and temporary submersion. All mounting hardware included for easy installation. Can be mounted to any door or window to detect an opening or closing event.

No normally open means that the internal switch is open when the magnetic module is against the switch module door is closed. 2x magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch to dc 5v 12v 24v light white 4 3 out of 5 stars 11 8 99 8. An accessory for any sensaphone remote monitoring system the magnetic reed switch adds physical security monitoring to your location. Adds alarming for intrusion or unauthorized entry to your monitored conditions.

2x magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch to dc 5v 12v 24v light black 4 2 out of 5 stars 15 9 99 9. 2sets magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch for gps alarm or other device dc 5v 12v 24v light 4 2 out of 5 stars 119. 2 surface mount rectangular switch. Door switches large rect magnetic door switch black 1 surface mount rectangular switch.

2x magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch to dc 5v 12v 24v light white 4 1 out of 5 stars 8 8 99 8. Mount the switch in a stationary position such as a door frame and mount the magnet to a movable object such as the door.