Automatic vacuum socket?

"standby saver"

Check that it is capable of switching enough power for the Henry and that they power detect on one socket. Some appear to monitor remote control IR signals rather than power detect.

vacuum attached to it.

vacuum on/off automatically when I operate the power tool(s). I know that many vacuums have such a feature built-in but alas my trusty Henry isn't one of them.

point me to such a device as surely they must exist?

Andy

vacuum attached to it.

vacuum on/off automatically when I operate the power tool(s). I know that many vacuums have such a feature built-in but alas my trusty Henry isn't one of them.

point me to such a device as surely they must exist?

When you refer to a "vacuum socket" I assumed that to be the sort of thing found in laboratories and hospitals like a gas-tap in reverse, providing a negative pressure at a small wall terminal.

I've seen these as "master slave sockets" or something close to that...

Thomas Prufer

Apologies, no, I mean a power socket for a vacuum cleaner!

Like this, but for 3-pin 240v:

Mathew

vacuum on/off automatically when I operate the power tool(s).

Thanks Andy - that might be worth a try.

The IR sensor however worries me a little as I'm not sure why it's necessary. If the socket is detecting current draw by the master (the TV, or in my case the power tool) I'm not sure why it needs to independently detect the IR on/off signal..?

Mathew

Yes, it seems so - certainly for the 'on' part of the process.

Mathew

Similar to this -

How about a roll your own option:

Normally called master slave socket on Ebay.

I did consider doing such but on this occasion would much rather buy something ready-made!

I think I've found one now based on the 'master slave' search suggestions:

No sign of any IR function to complicate matter and not too big either - I didn't really want something with 8 sockets given I'm only controlling the one item.

Mathew

I like the "normal" "master" and two "slave" sockets. A rather worrying abscense of it in google apart from amazon and ebay. So don't know what its switching capabilty is. The image on ebay item

Yes, it did seem ideal.

Indeed - very little info about it which can never be a good sign!

Ah, good spot. I was all set to order it but that's going to be no good - my mitre saw is something like 1500W...

I might try ebay item 380555697120 as whilst the details on the product page at

I could more understand the slave(s) having a current limit - but not the master?

My power take off vacuum has a 1500 watt limit to what's plugged into it, i.e. the tool, which triggers the vacuum to start up when switched to that mode... but then the vacuum is pulling another 1400 watts or so, so i guess the limit there is about keeping the loading of the cable from the vacuum to the socket on the wall within 3kw/13 amps.

Wonder if the extension lead type master slave jobbies are just equaling out the current across all the sockets, i.e. 500 watts each across 6 sockets including the master socket.

If the socket is detecting current draw by the master (the TV, or in my case the power tool) I'm not sure why it needs to independently detect the IR on/off signal..?

Didn't notice that. Just google power saver, and that's the first hit.

Andy

My vac's the same (Nilfisk), but it's useless on the Bosch multitool as slowing the tool slows the vac! I'd prefer a straightforward contactor as the output stage.

Well I have Status radio remote sockets (bought for fiver for a set of three from Asda IIRC). They work, slight snag is they forget which remote channel they were on if they lose power either due to a cut or being switched off/unplugged. But sturdy and reasonably well made inside.

vacuum on/off automatically when I operate the power tool(s).

a few diodes back to back to produce a few volts, apply to a 5v relay coil. Simple, effective.

NT