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®

 

S-4 

MAGNETIC CONTACT 

s4_en 07/11 

1. Features 

  Surface mounted magnetic contact. 

  Screw terminals eliminate wires splicing and soldering. 

  Extra terminal for easy installation of EOL resistor inside the enclosure. 

 Tamper 

contact. 

 Spacers 

included. 

2. Installation 

The magnetic contact is designed for indoor installation. The switch should be mounted on a 
fixed surface (e.g. window or door frame), and the magnet on a movable surface (e.g. 
window or door). Mounting on ferromagnetic surfaces and/or near to strong magnetic and 
electrical fields is not advisable, because it can result in malfunctioning of the contact. 
1.  Open the enclosure containing the reed switch (undo the screw and remove the cover). 
2.  Make a hole for wires in the base. If a spacer is to be used, the same hole must be made 

in it as well. 

3.  Screw the wires (and optional resistor) to the appropriate terminals. Description of the 

terminals: 

NC

 - reed 

switch; 

M

 

-  terminal to facilitate EOL resistor mounting; 

TMP

 -  tamper contact. 

 

 

Fig. 1. Ways to connect the wires and resistors for EOL and 2EOL configuration. 

 
4.  Using screws, attach the base of reed switch enclosure (and, optionally, a spacer) to a flat 

surface at the selected mounting location. It is advisable that the reed switch mounted in 
the base be located on the same side on which the magnet will be installed (after the 
enclosure is closed, the arrow on the cover should point towards the magnet). 

5.  Close the enclosure with the reed switch (replace the cover, insert and tighten the screw). 
6.  Open the enclosure containing the magnet (undo the screw and remove the cover). 
7.  Using screws, attach the base of magnet enclosure (and, optionally, a spacer) to a flat 

surface opposite the reed switch. The magnet must be located within the operating gap 
(make distance). 

8.  Close the enclosure with the magnet (replace the cover, insert and tighten the screw). 

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