[Amps] 130 V MOV placement ??
Jim Thomson
jim.thom at telus.net
Fri Sep 21 15:23:18 EDT 2018
IF using a 130 V rated MOV, where does it get wired ? Do you wire between 120 vac and neutral.... or 120 vac and chassis of equipment in question ?
IF a spike / transient / glitch etc occurs.and MOV conducts..which path do you want the fault current to flow through, the ground wire or the neutral ?
The only place the neutral and ground are bonded together is at the main 200A panel. On my 100 A sub panel, the neutral + ground are NOT bonded, per the electrical code.
Either way, the MOV is fused, so if it does fail shorted... the fuse opens up. Also I use a neon / led wired between output of fuse..which is also the input to the MOV...and neutral.
In normal operation, the neon / led is illuminated. IF fuse opens up, the neon / led goes out.... telling me the MOV is doa.
Tnx... Jim VE7RF
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