Voltage Sensor (switch) without cutting into wires

Discussion in 'The Projects Forum' started by gt550, Jun 5, 2011.

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  1. gt550

    Thread Starter New Member

    Jun 5, 2011
    Hi All,

    I'm looking to build a circuit to enable me to switch a relay based on when 12volts passes through a wire.
    BUT I can't cut into the wire.

    It's an automotive project to add a trailer board to a car without cutting into the wires, I have CAN Bus based electrics and warning stickers forbidding me to cut into wires.
    It's a project really to see if it's possible, I heard of a fibre optics similar solution, suction couplers and the like which I'm not keen on.

    Any pointer would be appreciated, Hall effect? or some sensors that could start me off in the right direction.

  2. bertus


    Apr 5, 2008

    I am closing this thread as it violates AAC policy and/or safety issues.

    6. Restricted topics. The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

    • Any kind of over-unity devices and systems
    • Automotive modifications
    • Devices designed to electrocute or shock another person
    • LEDs to mains
    • Phone jammers
    • Rail guns and high-energy projectile devices
    • Transformer-less power supplies
    This comes from our Tos:
    Terms of Service
    There will be enough sites where automotive questions can be discussed :
    Member selected automotive forums

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