In a perfect resistance-less frictionless world 1HP = 746 Watts
So at 115 Volts 1 HP = 6.5 Amps
A search through router specs shows that the manufacturers are rating their routers at 5 Amp per HP, which is pushing the honesty envelope (Yeah, they say "Peak HP"), so we'll give them a pass.
Relays are rated by amperage as well.
An "icecube" style 15 Amp 120 Volt relay is sold/rated as 1/3 HP (not 3HP but 1/3 !?)
A Printed Circuit Board relay that is rated at 10A @ 120V will fry when controlling a 2HP motor.
Whiskey Tango Foxtrot?
Obviously there are different measuring methods used by different manufacturers, anybody able to give me a clue?
Thanks!