Switching Control Electrical Components

There are many kinds of electronic components, even the components with the same function will have a lot of differences, this article is to take you to understand the function of the components which can disconnect or connect in the circuit- circuit breaker, air switch, relay.

I . What is the difference between circuit breaker, air switch and relay?

1. The circuit breaker is equipped with arc suppression equipment, which can trip by itself, so it can break the resistance and obstacle current;The air switch is not equipped with arc suppression equipment, so it can not be used to break the resistance and barrier current.

2. In the operation of the circuit breaker can be far away from the electric control;Air switches, on the other hand, are mostly manually controlled.

3. The circuit breaker interface insulation level is low, so it is usually used to deal with resistance and barrier current;And the ability to over-voltage is very weak, and the air switch interface insulation level is very high, usually is to deal with voltage, can not deal with resistance and barrier current.

4. Circuit breaker can protect the current circuit and motor, disconnect the obstacle current;The air switch is usually isolation effect, with no resistance operation.

5. The biggest difference between relays and circuit breakers and air switches is that they act in different positions in the circuit. Relays are generally used in the branch circuit of the circuit to play the on-off role, while circuit breakers and air switches are used in the main circuit.

II. What is a circuit breaker?

A circuit breaker is a switch installation capable of closing, sustaining and interrupting the current in a normal circuit and of closing, sustaining and interrupting the current in an abnormal circuit for a limited period of time.Circuit breaker according to its use category is divided into high voltage and low voltage 2, high and low voltage boundary distinction is not clear, usually more than 3KV is high voltage appliances.

III. What is the air switch?

Air switch is actually a kind of overload protection switch, use the principle of thermal, understandable that is within the line current is beyond the rated current, beyond the capacity of current hot components can make heat, thus makes the bimetallic strip distortion cause trip drop, this line was cut off by oneself, to achieve very good protection effect, so this kind of open is a home and often appear in the distribution network system.

IV. What is a relay?

Relay is an electrical control device, is when the change of the input (excitation) to meet the specified requirements, in the electrical output circuit to make the controlled amount of a predetermined step change of an electrical appliance.It has the interaction between the control system (also called the input loop) and the controlled system (also called the output loop).Usually used in automatic control circuits, it is actually a small current to control the high current operation of an "automatic switch".Therefore, it plays the role of automatic adjustment, safety protection and conversion circuit in the circuit.

I believe that this article can bring you a lot of harvest. Subscribe here to understand more electrical knowledge! IVY has been focused on Switching for more than 25 years. For more Latching relay and Power relay needs, please contact us at ebp@ivy-metering, or visit our website at www.ivy-metering.com