need a switch - Electronic Circuits Projects Diagrams Free

andrew2022 · 12th December 2004, 05:53 PM

i need a switch but dont know if this type is available

it has to have 3 options and double pole

on pole one it needs OFF/ON/ON
the secons pole needs to be OFF/OFF/ON

voltage will be 230VAC on pole 1, at lunder 1A
voltage will be 12VDC on pole 2, at under 1A

basically its to switch between 3, mains/auto and backup.

when set to mains, both need to be off. on auto, pole 1 needs to be on and pole 2 needs to be off and on backup, both need to be on

i have had a look thru some catalogues but couldnt find any

crust · 13th December 2004, 07:08 PM

Based on the description of what you need, why not just use
a regular on-off-on switch? It seems that it would accomodate
what you need. They are easily available at the V/I you talk
about in DPDT.

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12th December 2004, 05:53 PM	(permalink)
andrew2022	need a switch i need a switch but dont know if this type is available it has to have 3 options and double pole on pole one it needs OFF/ON/ON the secons pole needs to be OFF/OFF/ON voltage will be 230VAC on pole 1, at lunder 1A voltage will be 12VDC on pole 2, at under 1A basically its to switch between 3, mains/auto and backup. when set to mains, both need to be off. on auto, pole 1 needs to be on and pole 2 needs to be off and on backup, both need to be on i have had a look thru some catalogues but couldnt find any

13th December 2004, 07:08 PM	(permalink)
crust	Based on the description of what you need, why not just use a regular on-off-on switch? It seems that it would accomodate what you need. They are easily available at the V/I you talk about in DPDT.