DIYbanter - View Single Post - Timed on switch with times around an hour or so

[email protected]

Owain wrote:
wrote:
Are there any plug in (or even wired in) timers which allow one to
turn something on for an hour or so and then turn off automatically?
I'm after something like the immersion heater 'booster' switches that
allow you to press a button to turn the immersion heater on for an
hour but then revert to normal timed operation. I really want a plug
in version though for controlling 1kW or so and I want it at a
reasonable price, not the 20 pounds or more that the immersion heater
switches cost.

You could make one with a Maplin timer board and a relay to do the
switching, or a programmable relay from RS.

RS have mechanical run-back timers - try stock codes 536-2779 328-184

But by the time you've added on the cost of a case, 13A panel socket,
etc, you're probably looking at £20 or so anyway.

Very true, that's the problem. Plug in timers do most of what I want
(and only cost a few pounds) but a "turn on for an hour" button would
make them perfect.

I don't know their prices, but Elkay have switches which do exactly what
you want (although not plug-in).

Horribly expensive! Like £75 for some of them.

--
Chris Green