Normally Open (N.O.) and Normally Closed (N.C.) per pair.
Contacts are closed circuit when the magnet is alongside the switch. For alarm installation this is denoted as the "normal" state as the door/window is secure and the alarm is armed.
|Operating Temperature : -40.°C|
|Dimension details : Dimensions identical on switch and magnet|
|Width : 55.mm|
|Height : 12.5mm|
|Depth : 13.mm|
|Mounting Method : Surface|
|Attachment / Securing Method : Screw Down, Self Adhesive Tape/Pad|
|Overall Screw Spacing (H) : 44.5mm|
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