Horsepower Specification for Electrical Switches

Discussion in 'General Electronics Chat' started by krishnan_hari83, Feb 25, 2012.

  1. krishnan_hari83

    Thread Starter New Member

    Feb 11, 2012
    21
    0
    Guys,

    I want to know why Horsepower specification is given for Electrical switches.

    eg. 1/4, 3/4 etc.

    Krishnan.H
     
  2. #12

    Expert

    Nov 30, 2010
    16,355
    6,852
    So you will know how many horsepower the switch is rated for.
    With a bit of searching you can probably use the hp rating to find voltage and current ratings, too.
     
  3. BSomer

    Member

    Dec 28, 2011
    433
    106
    Basically it means that the switch is rated to connect/disconnect power to a motor. In the US we follow the NEC (National Electrical Code) which says that the switch must be rated for that purpose. If the switch is not rated with a HP you cannot use it to power a motor.
     
    #12 likes this.
  4. krishnan_hari83

    Thread Starter New Member

    Feb 11, 2012
    21
    0
    Dear Sir,

    Thanks a very excellent and clear explanation...many thanks for that.

    I want to know whether the application of switches can be identified from the given set of specifications. Are there any articles for that.

    Krishnan.H
     
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