8L21-12-11

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Reed relays are electro-magnetic switching devices that can be used in many different applications. The 8L21-12-11 is a standard reed relay that is used in a wide range of applications. It has a low power consumption and is designed to stand up to long-term use in harsh environments. Its compact size also makes it an excellent choice for applications where space is limited.

The 8L21-12-11 reed relay consists of a magnetically sensitive reed switch, encapsulated in a sealed glass case. Inside the case is an armature with an air gap that holds a reed switch. When a pulse of electricity is sent across the gap in the armature, the reed switch closes and an electric current is allowed to flow.

The reed switch is normally open – meaning it is off until energized. When the current passes through, it closes the switch and the current path is completed. This allows the relay to perform a variety of switching functions, including on/off switching, selecting between multiple connections, and analog modulation. It is especially suitable for use in data communication applications.

The 8L21-12-11 relay works by controlling an electromagnet. The electromagnet is typically located within a spring-loaded armature that houses the reed switch. When the current passes through the electromagnet, it creates a magnetic field that interacts with the switch. This causes the armature to move and the reed switch to open or close.

When the reed switch opens, the current is no longer able to flow and the circuit is broken. Conversely, when the switch is closed, the current is able to flow and the circuit is completed. This ability to quickly open or close the circuit allows the relay to be used in a number of applications, including as a switch in automation systems and as a controller for motors and other devices.

The 8L21-12-11 reed relay is also ideal for use in applications that require a low power consumption. The reed switch is only energized when the current passes through and so it uses much less power than other types of switches. This makes it an excellent choice for battery-powered devices, such as portable medical equipment.

The 8L21-12-11 reed relay is a reliable and cost-effective way to control current in a variety of applications. Its low power consumption and long-term durability make it an ideal choice for applications where space is limited and power savings are desired. Its simple design and low cost make it a popular choice for many industries, from medical to industrial.

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