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Schlage Electronics

Resolution: Normally-open (NO) contacts connect the circuit when the relay is activated; the circuit is disconnected when the relay is inactive. It is also called a Form A contact or "make" contact. Normal...:

What is a MS 700 from Von Duprin? Is there replaceable parts?

Resolution: MS776 and MS774 were door position switches offered by Von Duprin. The same switches are now sold by Schlage as 7764 and 7766.:

What is a Door Position Switch (DPS) for a Chexit device?

Resolution: A Door Position Switch is a switch and magnet mounted on the door and frame that monitors the door status. If door is held open beyond rearm time or if door is forced open, alarm wil...:

What is the MS 7766

Resolution: Surface mount DPS.LINK 7766:

What is the model 7764

Resolution: This is a mortise style door position switch. Link 7764: