Quote Originally Posted by westom View Post
Because that poster is in the UK. Your plug in North American.

An electrician need only see that plug or its part number (NEMA L5-30) to know exactly what is required.

Wire 12 probably meant 12 AWG wire - which is only 20 amp wire (AWG - American wire gauge). Ignore the salesman. Plug and receptacle define how thick wire must be and the circuit breaker size.

Your electrician will run a new dedicated circuit to a new NEMA 5-30 receptacle. And will install a new 30 amp circuit breaker.
So as far as the new breaker or upgrade to current breaker, is that what I will be telling the electrician?... "to install a new NEMA 5-30 receptacle and a new 30 amp circuit breaker for this UPS" ?

Sometimes these local companies tell you need one thing but then do something else so I want to be sure of what I need to have before I contact the electrician and I want to be sure of what he will be required to do so he doesnt give me some bogus sales pitch of stuff I dont need and ends up charging me more.

Quote Originally Posted by westom View Post
You are running all equipment from that UPS (all must be nearby the UPS) for battery backup (uninterrupted) power. It is not a surge protector. If you need surge protection (and everyone does), then the only effective solution must be installed in the breaker box. And breaker box earthing must be upgraded to both meet and exceed post 1990 code requirements.

Earthing (not a protector) is what actually does protection. Nothing adjacent to electronics is effective surge protection.

View 880 joules in your APC spec. That means only 290 and never more than 585 joules do protection. That means hundreds of joules will magically absorb surges that are hundreds of thousands of joules? Of course not. That means even an APC needs protection provide by one 'whole house' protector and earthing in the breaker box. Superior protection that is for everything in the building - not just that one circuit.
oh yeah that is a good point.. so the breaker box must have built-in surge protection then to cover the UPS and whatever else will be connected to it?