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Are quad breakers safe?

Discussion in 'Model Y: Battery & Charging' started by DadRS99, Jun 6, 2020.

  1. DadRS99

    DadRS99 Member

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    I have a full breaker box. Electrician says he can get a “quad breaker” 50A

    is that a thing? Is it safe?

    I do have 200A coming into house.

    was going to install a NEMA 14-50 with charge point flex.

    Need to charge an i3 as well.

    this the best way to go?
     
  2. paulk

    paulk Member

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    perfectly safe. its just a way to fit more circuits in a panel. a quad takes up two regular sized spaces but might have two double pole breakers or one double pole and two single pole breakers.
     
    • Informative x 2
  3. DadRS99

    DadRS99 Member

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    Thanks!
    Good to know!

    does anyone have a charger installed inside the garage w/ the cable going through the wall to the outside?

    I will be charging outside,
     
  4. user212_nr

    user212_nr Active Member

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    Sure, somebody does, but its not a great idea. Just install the Tesla wall connector on the outside of the garage. It is a weatherproof enclosure.

    I see that you are installing an i3 as well. You can also find ChargePoint chargers that are outdoor safe. If you have two cars, you should install two chargers. The extra cost is minimal compared with adding it later.
     
    • Like x 1
  5. Rocky_H

    Rocky_H Well-Known Member

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    Yes, quad are certainly a normal thing if your panel is made to take them. I was looking at those to fit in my extra circuit, but then I discovered that my particular model of panel will not allow either twin or quad kinds of breakers, so I had to just sacrifice one little used circuit.
     
  6. qdeathstar

    qdeathstar Active Member

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    I wouldn’t exactly call quad breakers ideal. But sometimes necessary.


    Can you take a picture of your panel?
     
  7. DadRS99

    DadRS99 Member

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  8. qdeathstar

    qdeathstar Active Member

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    Unless you have tons of recessed lights i might consider combining some of the lighting circuits instead of getting a 40-50 quad. Each of those lighting circuits is probably only pulling a few amps. Your electrician should be able to confirm. Then you could use a full sized breaker for the EV.

    That will help dissipate heat. With the quad breaker You’d be pulling around 80 amps though the fingers of the bus if the stove and ev chargers are operating at the same time. The panel is rated for that, sure, but nothing lasts for ever and the additional stress in that one location could cause the bus to overheated in that section. If you combine the lighting circuits, because they don’t draw all that much each of the fingers of the bus are drawing less current and generat lower heat which should help make your panel last longer
     
    • Like x 1
  9. DadRS99

    DadRS99 Member

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    That’s a good suggestion. Per the electrician, who’s in my house now (!) he can’t combine lights because there are outlets and lights currently on some of the breakers
     
  10. qdeathstar

    qdeathstar Active Member

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    hmm.... you should ask him how much current those circuits are drawing :)
     
  11. DadRS99

    DadRS99 Member

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    If they aren’t drawing a lot of power can they be combined? Does it matter what’s connected to it (lights or outlets?)
     
  12. qdeathstar

    qdeathstar Active Member

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    The only ones that have to be kept separate are the bathroom receptacles and kitchen receptacles, as well as major appliances. There’s no rule that says you bedroom outlets and lights can’t be on the same circuit as the living room lights, for instance.
     
    • Like x 1

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