Apr Closeup of a reed switch showing the magnetic contacts inside. Overhead plan view of a normally open magnetic reed switch. FREE DELIVERY possible on . Littelfuse is a global leader in providing magnetic sensing.
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Since their unalarmed state is for them to be open , if the cable going to . Normally Stocke New Products . A magnetic door switch, for example, is just a dressed up reed switch and a mating magnet. Adding a second non-moving magnet to balance the field will make it OPEN. The reed switch is an electrical switch operated by an applied magnetic field. The contacts may be normally open , closing when a magnetic field is present, or normally closed and opening when a magnetic field is applied.
Aug Remove the magnet and the reeds return to their original position breaking the circuit. Cut-out diagram of normally open reed switch.
I like normally open (with sense magnet ) for . A reed switch -based sensor that can be implemented either normally open to normally closed. If you want to buy cheap reed switch normally closed , choose reed switch normally. If you take an alarm system for example, then a magnetic door sensor will use a normally closed reed switch because the door magnet is ligned up with the reed. Simple magnetic reed switch module for proximity detection.
When the magnet is withdrawn the reed. Color White Material ABS Switch type N. Optional or Changeover) Maximum voltage 100V DC Maximum current . You have both types of contacts on the one unit, so you will always have the correct one! We are not responsible if you break the glass body of the reed switch during the . This distance will vary in accordance with the sensitivity of the reed switch and the strength of the magnet.
This sensor features SPST normally open or closed contacts. Learn more about magnetic reed switch technology with these application notes. Reed Switch – Electric Door alarm Switch for low-profile security. Phoenix America provides the definition and science behind reed switch.
When a magnetic field is applie the Reed Relay draws.
Magnet is within actuation Range. RECESSED MAGNETIC REED SWITCH. All reed switches are available as normally closed , normally open or bistable. The pigtail lead wires are inches long.
With straight slightly slanted X shaped.