Summary:An 80a latching relay is an electrical switch that allows a low power control signal to control a high power circuit. It can be used to make or break ......
An 80a latching relay is an electrical switch that allows a low power control signal to control a high power circuit.
It can be used to make or break contact between two terminals or can change the current path in a circuit. Latching relays are useful because they do not require a constant power supply like other types of switches do. This article will discuss how they work, their advantages and disadvantages, as well as give an overview of the different types of latching relay available.A relay consists of an iron core held in a frame or yoke, from which a copper coil is wrapped around it.
The ends of the coil are connected to an armature that is hinged. When the coil is energized, it creates a magnetic field that pushes the armature down onto one of the contact terminals. When this occurs the high current circuit is switched on & the relay is said to be in its 'on' position. When the coil is de-energized, the armature springs back to its 'at rest' position & breaks the contact circuit.
Once the armature is in its 'on' position the relay contacts are locked, but this can only be done if an on button is pushed. An off button is normally closed & in parallel with the coil, if this is pressed, it interrupts the always-on supply of power to the coil & the relay is turned off. An on/off switch can then be plugged into the relay terminals to turn it on or off again.
Another advantage of a latching relay is that it does not produce the buzzing noise that non-latching relays do when they are kept energised for too long. This makes it ideal for use with electronic equipment that requires low noise levels.Latching relays also require less space in a circuit than other types of electrical switches.
This can be helpful if you need to fit a large amount of switching in a small space or in a tight application where there is little room for error. This type of relay can be used for a wide variety of applications, including centralized meter reading systems & IC card prepayment meters.
The main benefit of a 80a magnetic latching relay is that it does not need a continuous current source to operate. This can be important in some applications where the power supply needs to remain on for a long period of time, such as battery chargers or alarms. Latching relays have a very long mechanical life & are extremely reliable. They are also very quiet to operate.
A common use for a relay is to control lighting through various push buttons. This can save a lot of space as it is possible to control many more lights than can be controlled with crossbar switches. In addition, a relay's coil only consumes power during the switching action & does not need a constant supply of electricity, which can save power consumption in the lighting circuit.