Avoid most motor loads. Even something like a 1hp motor would draw 10 or
more amps on start up.
Motors with a controlled start up such as modern washing machines are
I suspect the 4amp rating will also apply to heavily capacitive loads
and should be thought of as a limit for Reactive loads.
As for the man in the street? Most won't know and that goes for the man
in the shop too I suspect and would be none the wiser if the restriction
was spelt out on the packaging.
I have run my Liebherr fridge on one since 2010 when the
thermostat failed just as the 2 year warranty expired,
and the UK agent for Liebherr won't sell me a thermostat.
However, I find that every few days it would lose all its
settings (Smiths timer). Eventually I plugged it into
a BT surge protector that I bought in an electronic
junk shop (ex BT exchange). Problem never re-occurred,
but I never worked out what was causing it. BY the time
I has realised that the fridge wasn't running, many hours
had already passed. I don't have an wireless tat in my house
but the neighbours on the same phase might have.
So beware of spurious resets if you are running something
I simply cannot get my brain around the setting instructions:-(
A sparks fitted one to control a heat recovery extract fan in a rented
flat. The tenant wanted to change the settings but neither she
(Portuguese) not I could grasp the required pin pushes to get a simple
fixed on/off daily operation.
They can be a pain, and I have certainly replaced some failed
electronic ones with cheap mechanicals.
However, as I think I discussed here some time ago, what the
mechanical ones cannot do nowadays is select permanently off, or
anticipate the next switching operation, then resume as
I also got through two digital immersion boost timers (one
replaced under warranty), only installed as back-up to my gas
heating, without ever using them in anger, and now replaced with
a mechanical timer, which doesn't even have to wear itself out by
Chris J Dixon Nottingham UK
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.