The working principle of 10a relay and the choice of voltage

10a relay belongs to a classification of relay products, and it also has certain requirements for the environment in which it is used and operated. For those who have purchase considerations in this regard, they can refer to the basic knowledge of the learning professional section to determine a trustworthy 10a relay, and they can also study and analyze in-depth in the post-operation processing process. So the popular knowledge this time is about the working principle of 10a relay and the content of reference value in power calculation. Friends who are interested can learn from the actual situation.

1.10a Relay working principle

10a relay is generally composed of iron core, coil, armature, contact reed, etc. As long as a certain voltage is applied to both ends of the coil, a certain current will flow in the coil, which will produce electromagnetic effects. Under the action of electromagnetic force, the armature will overcome the pull force of the return spring and attract to the core, thereby driving the armature. The moving contact and the static contact (normally open contact) are pulled together. When the coil is de-energized, the electromagnetic attraction will disappear, and the armature will return to its original position under the reaction force of the spring, releasing the moving contact and the original static contact (normally closed contact). This pulls in and releases, so as to achieve the purpose of conducting and cutting off in the circuit. For the "normally open and normally closed" contacts of 10a relay, it can be distinguished as follows: the static contact that is in the off state when the 10a relay coil is not energized is called "normally open contact"; the static contact that is in the on state The points are called "normally closed contacts".

2.10a selection of relay rated working voltage

10a relay rated working voltage is one of the most important technical parameters of the relay. When using the 10a relay, the working voltage of the circuit should be considered first, and the rated working voltage of the 10a relay should be equal to the working voltage of the circuit. Generally, the working voltage of the circuit is 0.86 of the rated working voltage of the relay. Note that the voltage of the workpiece in the circuit must not exceed the rated working voltage of the relay, otherwise the 10a relay coil is easily burned.