Reed relay
2021-04-25
The reed relay is a relay that activates the reed switch by generating a magnetic field from the coil, and is a coil sensing device. Therefore, the characteristics of the reed relay, small size, light weight, fast response speed, short runout time and other characteristics.
When a piece of ferromagnetic metal or other magnetically permeable material is in close proximity, an action occurs, opening or closing the circuit. It consists of a permanent magnet and a reed switch. The permanent magnet and the reed switch are attached to a bracket that is non-magnetic and magnetic. Taking the line connecting the north and south poles of the permanent magnet as the axis, this axis should coincide with or substantially coincide with the axis of the reed switch. Adjusting the distance between the permanent magnet and the reed switch from far and near, when the reed switch just happens to move (for the normally open reed switch, it becomes closed; for the normally closed reed switch, it becomes disconnected) When fixing the position of the magnet.
At this time, when there is a whole piece of magnetic conductive material, for example, the iron plate is close to the magnet and the reed switch at the same time, the reed switch will act again to return to the state when there is no magnetic field; when the iron plate leaves, the reed switch That is, the action in the opposite direction occurs. The reed relay has a solid structure, sealed contacts, high durability, can be used as a position limit switch for mechanical equipment, and can also be used to detect whether iron doors, windows, etc. are in a designated position.
Thermal Relay is used to protect AC three-phase asynchronous motor/electric motor against overload and open phase. Korlen electrical appliances produce thermal relay switch in wholesale,being a good thermal overload relay suppliers from china. We also offers Manual Motor Startor , AC Contactor, led light, Circuit Breaker etc.
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