Magnetic contacts are the first line of defense in the burglar alarm industry. They are inexpensive, very reliable, and in most cases out of sight. While PIR's and other interior detectors are an excellent back up, it is the contact that immediately triggers the alarm system when the door or window is open. Contacts should be used on all entry sights because a PIR will pick up the intruder after they are inside.
SENTEK Magnetic Contacts consist of the most common recessed, surface mount and overhead door sizes used in the security industry.
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* Mini Stick-on contact with flange
* Side leads with #22AWG 18" length
* Adhesive and screw mount included
* Special leads on request
* Switches or magnets available seperately
* Resistor, Diode and Supervisory Loop available on request
* Colors: White, Brown, Grey
* Without Flange (BS-2051)
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Â| PartNumber  |
Loop Type  |
Reed Form  |
ClosedGap (Inch(mm) )  |
DepatureGap [Inch(mm)] Â |
Maximum Initial ContactResistance (Ohm) Â |
Maximum ContactRating (W) Â |
Maximum SwitchingVoltage (VDC/VAC) Â |
Maximum SwitchingCurrent (A) Â |
| BS-2011 Â |
Closed  |
N/O Â |
 1 (25)  |
  1.06(27)  |
   0.150  |
      10  |
        100  |
        0.5  |
| BS-2011 MN2550 Â Â |
Closed  |
N/O Â |
 1 (25)   |
  1.1(28)  |
   0.150  |
      10  |
        100  |
         0.5  |
| BS-2011WG | Closed | N/O | Â 1 1/4 (31) | Â | Â Â Â 0.150 | Â Â Â Â Â Â 10 | Â Â Â Â Â Â Â Â 100Â | Â Â Â Â Â Â Â Â 0.5 |
| BS-2011A | Open | N/C | Â 1 (24) | Â | Â Â Â 0.150 | Â Â Â Â Â Â Â Â 3 | Â Â Â Â Â Â Â Â Â Â 30 | Â Â Â Â Â Â Â Â 0.2 |
| BS-2011C Â Â |
Closed & Open   |
SPDT Â Â |
 1 (24)  |
  |
   0.150  |
        3   |
          30   |
        0.2   |
Shengyi Door Co., Ltd. , http://www.china-security-door.com