12 V plug?

Discussion in 'rec.audio.pro' started by Christopher Glaeser, Sep 2, 2003.

  1. I want to power a 600 W inverter from my Suburban and according the
    manufacturer, it is too large to power from a cigeratte lighter. The wires
    included with the inverter can be attached to the battery using the terminal
    post screws. Is there a 12 V wireharness/plug available that can be
    attached to the battery such that the inverter can be plugged and unplugged
    easily, without screwing and unscrewing the terminal posts with each use?

    Best,
    Christopher
  2. Scott Dorsey

    Scott Dorsey Guest

    Christopher Glaeser <cdg@nullstone.com> wrote:
    >I want to power a 600 W inverter from my Suburban and according the
    >manufacturer, it is too large to power from a cigeratte lighter. The wires
    >included with the inverter can be attached to the battery using the terminal
    >post screws. Is there a 12 V wireharness/plug available that can be
    >attached to the battery such that the inverter can be plugged and unplugged
    >easily, without screwing and unscrewing the terminal posts with each use?


    Sure. Try an auto parts place. They sell kits for this sort of thing
    for applications like tow trucks, where they frequently need to hook up
    booster cables to the battery. They'll put a huge 2-pin connector on
    the grille, hooked with #4 up to the battery, and then connect cables with
    #4 to the car being started.

    You could make your own with something like the Russelstoll connectors
    too. Just be sure it's rated for 50 amps DC; a lot of connectors that
    are fine at 50A AC will be badly damaged if they are disconnected under
    load with DC because DC will sustain an arc for much longer.
    --scott
    --
    "C'est un Nagra. C'est suisse, et tres, tres precis."
  3. > Sure. Try an auto parts place. They sell kits for this sort of thing
    > for applications like tow trucks, where they frequently need to hook up
    > booster cables to the battery. They'll put a huge 2-pin connector on
    > the grille, hooked with #4 up to the battery, and then connect cables with
    > #4 to the car being started.


    Many thanks for the quick response. I'll check the local auto store.

    > You could make your own with something like the Russelstoll connectors
    > too. Just be sure it's rated for 50 amps DC; a lot of connectors that
    > are fine at 50A AC will be badly damaged if they are disconnected under
    > load with DC because DC will sustain an arc for much longer.


    Good suggestion. In addition, I'll also power-down the inverter first to
    minimize any arcing. Thanks again.

    Best,
    Christopher
  4. Scott Dorsey wrote:
    > Christopher Glaeser <cdg@nullstone.com> wrote:
    >
    >> I want to power a 600 W inverter from my Suburban and according the
    >> manufacturer, it is too large to power from a cigeratte lighter. The wires
    >> included with the inverter can be attached to the battery using the terminal
    >> post screws. Is there a 12 V wireharness/plug available that can be
    >> attached to the battery such that the inverter can be plugged and unplugged
    >> easily, without screwing and unscrewing the terminal posts with each use?

    >
    >
    > Sure. Try an auto parts place. They sell kits for this sort of thing
    > for applications like tow trucks, where they frequently need to hook up
    > booster cables to the battery. They'll put a huge 2-pin connector on
    > the grille, hooked with #4 up to the battery, and then connect cables with
    > #4 to the car being started.


    Most of the tow trucks use Anderson SB175 connectors (175A) which are a
    bit large for some applications. Anderson also makes a 50A model and
    there's a new 120A version in limited colors.
    http://www.andersonpower.com/products/mp/sb.html

    Most industrial battery places handle them and you can also get them
    from Wrangler NW online http://www.wranglernw.com/

    I have a case of the 50A versions with 6 ga. contacts and yellow bodies
    (Anderson's recommended color for 12V applications) that I had to order
    in from the factory since nobody was stocking them yet. They just
    arrived last month and even with the overnight freight I paid on them
    they are quite affordable. Drop me a line if you can't find what you
    need and I'll sell you a few at cost.

    Keep in mind that a 600W inverter can draw somewhat more than 50A but
    it's not very likely to do so for any length of time.

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