Inverter Isolater switch

Discussion in 'Motorhome Chat' started by Red Dragon, Jan 27, 2014.

  1. Red Dragon

    Red Dragon Funster

    Joined:
    Apr 23, 2010
    Messages:
    619
    Likes Received:
    1,266
    Location:
    Isle Of Man
    I have a 500watt inverter which I would like to connect direct to my battery bank.
    BUT how do I go about isolating it,and what isolated switch would I need.:Doh:
    Any help please.

    And use only simple terms,I have my blonde,blue eyed,thickos head on.:Rofl1::Rofl1::Rofl1:
     
    • Like Like x 1
  2. pappajohn

    pappajohn Funster Life Member

    Joined:
    Aug 26, 2007
    Messages:
    29,463
    Likes Received:
    16,906
    Location:
    YO11 2BD
    it wont need an isolator....just use the on/off switch.
    as long as the switch is off it uses no power.

    If you cant access the switch when installed you could use a 100amp relay in the battery live wire with an illuminated rocker switch in a convenient position.
    connect the battery live to the one of large terminals on the relay then from the second large terminal to the inverter positive and wire a switch to the small spade terminals.
    Wire switch between battery pos and one terminal on the relay then from the the other relay terminal to earth


    http://www.ebay.co.uk/itm/12V-4-PIN-100-AMP-RELAY-HEAVY-DUTY-SPLIT-CHARGE-CHARGING-12-VOLT-BOAT-KIT-CAR-/221192058305?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item338012f5c1
     
    Last edited: Jan 27, 2014
  3. Taran_Las

    Taran_Las Funster

    Joined:
    Mar 26, 2009
    Messages:
    6,480
    Likes Received:
    5,523
    Location:
    Near Mold North Wales
    Steve,

    Have a read here for JeanLuc's excellent article on fitting a small inverter. Hope this helps.
     
  4. pappajohn

    pappajohn Funster Life Member

    Joined:
    Aug 26, 2007
    Messages:
    29,463
    Likes Received:
    16,906
    Location:
    YO11 2BD
    a pictures worth a thousand words......:thumb:

    The diagram of what i wrote
     

    Attached Files:

    • Like Like x 2
  5. Allanm

    Allanm Funster

    Joined:
    Jun 30, 2013
    Messages:
    3,039
    Likes Received:
    4,106
    Location:
    Cotes d'armor, France
    I have an inverter permanently wired to the battery. Generally, I use the on / off switch, but when I am not going to use it for a while, I will isolate the pos wire with one of these..

    [​IMG]

    Halford sell them but they are available in other places.

    Allan
     
    • Like Like x 2
  6. Red Dragon

    Red Dragon Funster

    Joined:
    Apr 23, 2010
    Messages:
    619
    Likes Received:
    1,266
    Location:
    Isle Of Man
    Inverter Isolation

    Hi
    Many thanks to Pappajohn and Taran Las, thats great just what I was looking for:thumb:
     
  7. Wickolad

    Wickolad Funster

    Joined:
    Sep 10, 2013
    Messages:
    479
    Likes Received:
    517
    Location:
    Wickersley
    Hi Red Dragon, I have looked at the wiring layout in the above thread and although that system will work fine, IMO it seems a bit over the top. I don't wish to offend anyone but why not keep a simple job just that..simple.
    I too have fitted a 1500w pure sine inverter, I have incorporated a 80A maxi fuse in the supply to the inverter, close to the battery as recommended, I have also incorporated a Battery Isolator Switch ( http://bit.ly/1f7lUXV ), between the fuse and the inverter. I have fitted this so as to be able to isolate the inverter if needed and is readily accessible, being mounted to the base unit of the lounge seating area. I also fitted a CBE single gang 240v socket directly below the Isolator. The socket is supplied by the inverter via a standard 13a plug with a short flex wired directly in to the rear of the CBE socket.
    This way, the inverter is turned On/Off using the Battery Isolator switch, there is no leaving it turned on by mistake as the large red key used is clearly visible. When isolated, the key is removed and no chance of accidental activation and subsequent risk of running down battery.
    At the end of the day, if the job can be done with the least number of components to go wrong, then, why not keep it simple, and less wire runs.
    Only my view, if any pics are required I'll gladly snap and post.
    :Blush:
     
    • Like Like x 1
  8. Techno

    Techno Funster Life Member

    Joined:
    Jul 28, 2010
    Messages:
    13,857
    Likes Received:
    14,508
    Location:
    Leeds the one up North
    Last edited: Jan 27, 2014
    • Like Like x 2
  9. haganap

    haganap Funster Life Member

    Joined:
    Dec 5, 2007
    Messages:
    11,069
    Likes Received:
    13,677
    Location:
    Heavan
    Sorry wickload, I have to laugh (not at you I hasten to add)

    You say, "why make a job harder than it needs to be" then go on to explain something that complicated for the average Jo like my self and I'm sure he won't mind me saying red dragon.

    Steve, I have a Stirling with a remote switch. Simple to fit job done :Smile:

    I have the same one as in the eBay link above, works great.
     
    Last edited: Jan 27, 2014
    • Like Like x 3
  10. Techno

    Techno Funster Life Member

    Joined:
    Jul 28, 2010
    Messages:
    13,857
    Likes Received:
    14,508
    Location:
    Leeds the one up North
    If you do go the Sterling route Steve BEWARE the newer stock only has a 6 metre cable so check with the vendors if you might need 10 metres like they used to be. I used almost 10 myself
     
  11. Red Dragon

    Red Dragon Funster

    Joined:
    Apr 23, 2010
    Messages:
    619
    Likes Received:
    1,266
    Location:
    Isle Of Man
    Isolation

    Ha Ha i think I need some of the above:Doh:
    Cheers Guys if nothing else I have all I need to install an inverter. THANKS

    Paul thanks for rescuing me in my "Dumb Blonde Moment"
    I like Electricity, but the trickery(tricity) is beyond my grey cells:Rofl1::Rofl1::Rofl1:
     
  12. Wickolad

    Wickolad Funster

    Joined:
    Sep 10, 2013
    Messages:
    479
    Likes Received:
    517
    Location:
    Wickersley
    Hi haganap, I would actually agree with you, as papajon said, a picture paints a thousand words. I was almost there trying to explain the picture of the set up I had in my mind. It doesn't always work out the way you intend though hey?:Blush:
     
    • Like Like x 1
Loading...

Share This Page