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Recent content by gfunkdave

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    Questions about setting up a wall connector

    Three phase wye systems are 120V line to neutral and 208V line to line. Unless it's a high leg delta system (uncommon) then there's one phase that's 208 line to ground, the other two are 120V to ground, and all phases are 240V phase to phase. The wall connector's specified input voltage is...
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    Do you need conduit for in wall 4-awg thhn?

    In addition, just about all the Chicago suburban area requires conduit. I think it's Cook, Lake, McHenry, Dupage, Kane, and Will counties...and maybe more.
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    Charging 2 tesla 3's in same 50 amp circuit in garage

    Can't have a 6-20 with a breaker that isn't 20A. OP should just install two wall connectors set up in power sharing mode and be done with it.
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    20 or 30 amp breaker for tesla wall charger

    Ask your electrician to do a load calculation for your house to determine the largest car charging circuit your existing service can accommodate.
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    what wire is this?

    It looks like 8-3 to my eyes. I'd just replace the breaker with a 40A one and call it a day. 40A breaker is still plenty fast unless you routinely need to pull into the garage with a nearly flat battery and then expect to drive 300 miles five hours later without a Supercharger.
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    8 gauge wire implications with a Tesla Gen 3 Charger

    If your electrician used Romex it can be on up to a 40A circuit. If they used individual wires in conduit you can have a 50A breaker. If you decide to buy the wall connector, you'll just put that on the wall instead of an outlet. There are no drawbacks. An electron is an electron. You will...
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    Mobile Charger no longer included

    No you don't, it will work with anything from a 15-60A breaker.
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    70amp main breaker - what can I install?

    No, a 14-50 needs to go with a 50A or 40A breaker. The 40A is allowed because there's no such thing as a 14-40 outlet. On a 30A breaker you'd use a 14-30 outlet (if you have a neutral) or a 6-30 outlet (if you have no neutral)
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    Mounting TWC or Other EVSE on a Post?

    At our last meeting our condo board all agreed that we should put in electric car charging circuits for the four units. We are leaving the choice of EVSE up to the individual unit owners, so the board is just going to put in the wiring. There is a convenient steel post adjacent to each parking...
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    Home circuit breaker 208 volts?

    For some reason you have 3 phase power (well, two of the three phases are connected to your house). It's odd that they would put a residential neighborhood on 3 phase power. Do you live in a condo or other multiunit building? Generally larger buildings (say, anything bigger than a 4-flat and all...
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    What type of outlet is this?

    Generator inlets do have male plug ends, so that you aren't holding a cord with a live male plug attached to your running generator. :) Besides, then you'd need a double-male cord to connect your generator to your house, which is called a suicide cord for a reason. (example)
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    6/3 NM-B on conduit

    I don't want this thread to become a "romex in conduit" thread but this isn't really relevant. 312.1 (2020 edition, free access at nfpa.org) states the scope of section 312 is to cover "cabinets, cutout boxes, and meter socket enclosures" below 1kV and not branch circuits. Section 334 covers...
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    6/3 NM-B on conduit

    There is no rule against using romex in conduit (contrary to popular belief) but if you are using conduit you should use individual wires. Running 6/3 romex through conduit will be more trouble than you may realize. It's incredibly stiff and difficult to maneuver. If you use wires in conduit...
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    Confusing outlet vs breaker

    Yup, that's loose wire in conduit so you can use a 50A breaker. But the fact that there isn't a ground wire doesn't matter since the NEMA 10 outlet that was there already does not have a ground connection, and they didn't run a ground wire. You can see it's conduit because you can see the...
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    Confusing outlet vs breaker

    If the breaker for this circuit is in the main panel (i.e., the first panel immediately after your meter) then the neutral bus and ground bus are connected together at that panel and the neutral is effectively a ground. Well, it should always effectively be a ground - that's why pre-1996 code...