can low hertz damage appliances

Hertz is the units used to measure clockspeed, which how fast an appliance can carry out instructions

Another Answer

Although the term "Hertz" is, indeed, used to reference the "Clock" speed of computers, in this case the reference confuses this specific question, which itself is confused about the term.

Hertz has the broader definition of "Cycles per Second". This is in relation to all frequencies, of all forms. This question is trying to gather an understanding of the term "Hertz" in physical reference to devices the questioner interacts with all the time. Appliances, here, encompasses all powered items found everywhere in our environment; any "appliance" that plugs into our local power grid. The reference to "Hertz" on an appliance is displaying one part of the power specification designed into the device. A nation's power grid has to have a common set of specifications. The USA uses a power standard that defines all the parameters about any power source feeding the grid. One of the specifics about power in the USA is that our AC power sources must have a frequency of 60 cycles per second, or 60 hertz (Hz). This is only in reference to the frequency of the power source. All the other specifications are important as well. The voltage of our public power sources have to fall into the power specification too.

Residential power is specified as "240V 2ø" (240 volt 2 phase), which is saying "two 120V circuits" feed our residential sub grids. This nations residential power specification defines that power sources plugged into this grid have to supply step down power in the range between 110-120Vac @ 60Hz. This places our in home 2ø power spec between 220-240Vac @ 60Hz. The power specification on the appliance, which includes "Hertz", defines that the appliance is designed to work on the power at your house; as opposed to the power in the UK, which has a different frequency specification of 50Hz.