Horsepower Specification for Electrical Switches


Joined Nov 30, 2010
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.


Joined Dec 28, 2011
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.

Thread Starter


Joined Feb 11, 2012
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.