[SOLVED] Why snubber circuit is used at output of a relay switch?

[shantilal.s50]

I found that a snubber circuit is used at output of a relay switch.
Here snubber circuit as shunt at o/p which is combination of a "Resistor and Capacitor"

 

[ch wazir]

I found that a snubber circuit is used at output of a relay switch.
Here snubber circuit as shunt at o/p which is combination of a "Resistor and Capacitor"

resistor and capacitor combination is used to quench the spark,it is a spark quenching arrangement,if the same is not used the contact/contacts of a relay may get spark and burn.regards

 

[atripathi]

In other words- You can not suddenly interrupt current from inductive circuit, if this the case then you should provide alternate path to current and snubber does precisely the same.

 

[Ogu Reginald]

The reason why snubber network is placed at the output of a relay is to suppress transient. In other word, it is to protect the circuit from sudden changes in voltage (dV/dt). It is worth noting that the type of transient that the snubber is effectively working against is initiation transient.
Initiation transients are produced when a circuit is originally dead is energized suddenly and very fast (the switching of the relay).