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  1. #1

    Default What is this device on the breaker?

    This was on the furnace breaker in this morning's condo. Is it a security device of some kind?

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  2. #2
    Join Date
    Jan 2014
    Location
    India
    Posts
    13

    Default Re: What is this device on the breaker?

    Generally furnaces breaker requires a dedicated circuit of their own to supply the electrical power requirements for the blower and thermostatic controls. A Furnaces breaker can easily install a lock to lock when cb works on the equipment.




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  3. #3
    Join Date
    Sep 2012
    Location
    Houston
    Posts
    3

    Default Re: What is this device on the breaker?

    lockout tagout device so repairman can safely work on item. See them in industrial plants all the time.


  4. #4
    Join Date
    Jun 2008
    Location
    Maryland
    Posts
    1,049

    Default Re: What is this device on the breaker?

    Breaker lockout. Usually when you see one, you will not see a service disconnect at the appliance that it serves. Code usually requires either a service disconnect at or within sight of the appliance , or, a breaker lockout device. It's a safety device to protect service personnel. You should have seen a little hole on the breaker lockout where the service tech could put a small padlock.


  5. #5
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,248

    Default Re: What is this device on the breaker?

    Quote Originally Posted by John Dirks Jr View Post
    Breaker lockout. Usually when you see one, you will not see a service disconnect at the appliance that it serves. Code usually requires either a service disconnect at or within sight of the appliance , or, a breaker lockout device. It's a safety device to protect service personnel. You should have seen a little hole on the breaker lockout where the service tech could put a small padlock.
    The use of a lockout at the breaker is okay for basically all appliances except air-conditioning or refrigerating equipment, which requires the disconnect to be within sight from readily accessible from the equipment - within 50 feet straightline sight - nothing is permitted to block the view from the equipment to the disconnect.

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