Thing I don't like about those superstrip overvoltage protectors is that
yes, they work - once. After that, you don't have any more protection.
And you have no way of knowing!

So a prudent guy would be soldering in new whatever-they-ares, look like
Chiclets with leads on them, every few months. And who's going to do that?

Grant Erwin

Eastburn wrote:

- e.g. buy a power plug strip that has lightening
strike
protection - and use it between the speed controller and the motor.
That will
protect both motor and speed controller to a great extent.