using mov varister in ac line 230v

[raman00084]

what value of mov can i use in ac power line to reduce spikes, how should i connect the mov should i connect any resistor through it ,
please suggest the value and circuit thank you.

 

[barry]

1) You want a MOV with a rating greater than 330 Volts (230VAC peak voltage)
2) Don't use a resistor, that would defeat the purpose of the MOV.

 

[ashugtiwari]

This may help:
https://www.ehow.com/how_8708803_size-mov-surge-protection.html
You can directly connect the MOV between power lines i.e. phase and neutral.

Hope that helps.