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Looking for a budget latching relay which needs manually resetting once triggered


lardconcepts

tl;dr version:

I'm looking for a mains-voltage simple latching relay which will simply open a circuit as soon as it's triggered, and then stay latched open until reset either physically, or by some kind of push-button trigger.

Without going into the tedious details*, I need to cut out a 300 watt inductive mains-powered water pump if it has been running for more than 10 minutes. 

After a few phone calls to RS and others, it became clear I needed to make this out of two components, delayed-on timer and a latching relay. I found the timer at https://quasarelectronics.co.uk/Item/cebek-i-137-230vac-delayed-on-timer-relay-module-2-45-minute

Now I just need the latching relay. So many choices, mind-boggled, not quite sure which one.

I'm in the UK, and this is a home hobby project, so suggestions of "just simply use this £395 PCL" wouldn't be so helpful!

And optionally, I'm also looking for a cheap mains-voltage buzzer which will just go "beep beep beep" when energized. Again, struggling to find that.

Thank you.

(*OK, if you REALLY want to know the story behind why I want to do this, read this. It gets tedious... https://www.diynot.com/diy/threads/looking-for-mains-latching-timeout-relay-to-prevent-water-pump-flooding.509128/)

 

 

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