Auto master/slave switch

[fleyh]

I would go DPDT….
DP= Double Pole - it switches two wires
DT= as above
this allows both live and neutral wires to be switched.
There are also ‘DPDT Centre Off‘ switches which do what they say - there is a central off position where there is no connection.

Understood. Thank you very much for the clarification.


FYI - for anyone wondering what kind of load is required for "multi-way extension block to the tool socket" option HamsterJam suggested here - with the auto-switch model discussed in this thread - I found that 20W 11W dummy load on the master socket is sufficient to turn the slave socket on.

Update: turns out 11W in Master socket works to trigger Slave socket just as well

 

[flying haggis]

rather than unplugging and plugging in the vac, if you have changed the master socket to a multiway or have a multiway extension plugged into the master socket. get an old small table lamp with a 25w bulb and switch the lamp on which will bring the vac on.

 

[fleyh]

rather than unplugging and plugging in the vac, if you have changed the master socket to a multiway or have a multiway extension plugged into the master socket. get an old small table lamp with a 25w bulb and switch the lamp on which will bring the vac on.

Thank you for the suggestion.
Yes, this is exactly what I did and eventually found that with 5W lamp in the multi-way extension it does not trigger slave socket, but with 11W lamp it does.

Will probably have to do some more permanent re-wiring eventually, as table lamp in a quarter garage "workshop" takes too much room , but my main issue with having to plug/unplug cords all the time is now sorted, thanks to nice people of this forum.

 

[flying haggis]

for anyone who has one of these (yep, thanks) this is what the insides look like so easy to modify if required to build in to a different housing perhaps

 

[Rorschach]

Pretty much as I expected to see inside.

What's the rating on that fuse?

 

[flying haggis]

Da woodster said in an earlier post it had an internal 13A fuse ( I must admit despite opening it up, and it has a silly security screw to hold it together, I didnt read the fuse value.

 

[Rorschach]

Da woodster said in an earlier post it had an internal 13A fuse ( I must admit despite opening it up, and it has a silly security screw to hold it together, I didnt read the fuse value.

I assumed he meant in the plug.

 

[flying haggis]

I actually dont see the point of the internal fuse unless it is a quick blow one (hope not)

Just opened the case again to see the fuse value. its 10a. with an L marker so low capacity what ever that means.

 

[MARK.B.]

Thank you just ordered two

 

[JBCarpentry]

interesting work around for the PTO on my MAXVAC DV35 vacuum MAXVAC 35L M-Class Vacuum with PTO & Manual Filter-Clean, Complete Accessories Set.

sounds like the power on/off is a little tricky and cables are a little thin so glad I went for the upgrade with it built right into the vacuum

 

[fleyh]

interesting work around for the PTO on my MAXVAC DV35 vacuum MAXVAC 35L M-Class Vacuum with PTO & Manual Filter-Clean, Complete Accessories Set.

Ignoring the price - if it is 230V Maxvac version with 2000W power take off then (on paper) it is indeed a better option than the switch discussed in this thread.

sounds like the power on/off is a little tricky and cables are a little thin so glad I went for the upgrade with it built right into the vacuum

For anyone wondering - cables to Master and Slave receptacles of the switch are 0.75mm and the mains one is 1.0mm