43. MOV Protection & Failures

Question.2

A 230VAC SMPS has the following input protection:
Fuse (T2A 250V) → MOV (V20E275P) → NTC → Rectifier Circuit
After a severe lightning event, Tony finds:
●    Fuse is blown
●    MOV reads short circuit
What is the correct failure sequence?

MOV-fail-sequence-connection-diagram

Select Answer