NVR switch

[Andy Morrison]

Hi,anyone know where I can purchase a no volt return switch.

cheers

andy.

[Andy Hall]

Yes (although I assume you mean No Volt Release). Axminster Power Tools Centre sells one

KJD12E240 £17.63 inc.

There is also a Trend one with a 13A plug and socket if you are feeling lazy and don't want to wire it up, but it costs more than twice as much.

[John Rumm]

CPC do some that are cheaper and do require wiring up. Do a search for "no volt".

[Dave]

Sorry for posting this, but what TTH is a No Volt Release switch?

TIA

Dave

[Andy Hall]

It's a stop/start switch for a machine or fixed power tool which releases to off if the power is turned off on the supply side.

A typical application that may be the application here is for a router fitted in a router table. The NVR switch gives single action start and stop, but also drops to the off position when there is no power on its input. Therefore the machine/tool can't start if it is simply plugged in or if the supply is turned off and on. THe green button has to be pressed.

[Dave Plowman (News)]

It's a switch which works normally, but if the power supply is cut in any way goes off and stays off until re-set. Normally done with a form of relay or solenoid latch.