Normally Closed Door Switch

The internal reed switch is closed meaning the circuit is completed when the magnet is near the sensor meaning the door or window is closed.

Normally closed door switch.

Replacement for but not limited to gsm v1602a2 szm v16 fa62 wb24x824 wb24x10205 see more product details. Get it as soon as wed sep 9. This normally closed proximity door switch is built to monitor the opening and closing state of windows and doors. Speedda 6 sets 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.

The other sensor had been smashed when the door tracks were replaced by a technician not familiar with my improvements. Rated 16a 1 2hp 125 250 vac. Microwave oven door interlock switch normally closed nc. Get it as soon as sat sep 19.

4 3 out of 5 stars 64. If we program for normally closed but wire normally open the system will tell us the door is faulted when it s closed and that it s in the normal condition when it s open. It took me three mail order attempts to get the proper switch due to my misunderstanding of what normally open and normally closed means for a magnetic switch of this type. When replacing an existing contact you also need to know if the contact being replaced was normally open or closed especially if more than one contact is wired into a zone.