Can I Install a 120 Volt Hour Counter with a 220 Volt Circuit?

No – you cannot connect this hour counter up as you have described, here are your options to make it work…

Electrical Question from Kathy about 220 Volt Wiring Diagram – Hour Counter
Background: Kathy, a Homeowner from Oceanside, CA
Question: I have a 220VAC system that I need to add an hour counter to. It is a 2 wire system with both lines having 110VAC, together 220VAC. The hour meter says that it is rated 75 to 270VAC. It says to hook up the AC hot to Pin 1 and the AC neutral to pin 2. I just hook up 1 line to each pin right?

Dave’s Reply:
Thanks for your electrical question Kathy. No – you cannot connect this hour counter up as you have described because the 220 volt circuit of the vacuum does not have a neutral. So you either need to obtain a 220 volt hour counter or install a separate 120 volt power source to the vacuum unit for the hour counter and install a 220 volt relay which would be used to control the voltage to the hour counter.

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