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#1 |
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diyAudio Member
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I'm searching for a push button on/off power switch (rated >220V, >2A) for a 10 mm black anodized aluminum front panel. It will be the only button on the panel so I would like it to look great!!!
LED illuminated would be fantastic. Thanks for any suggestions. Nic |
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#2 |
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diyAudio Member
Join Date: Sep 2009
Location: Central NY
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Look to the industrial modular stuff like Allen-Bradley or Idec. You pick the operator then add switch blocks to tailor it to your needs. Most of the operators will tolerate a 10mm panel. They're not cheap, but are very high quality and live forever.
Push Buttons from Allen Bradley
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220,221 Whatever it takes. |
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#3 |
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diyAudio Member
Join Date: Mar 2004
Location: Budapest, Hungary
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I used RAFI switces for similar purpose:
LUMOTAST 75, serie costruttiva di pulsanti e interruttori a chiave 250 V |
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#4 |
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diyAudio Member
Join Date: Apr 2007
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One thing you could do is to get one of these nice momentary push button switches for computer cases
![]() And then use the AMB ε24 driver circuit to latch a relay: The ε24 Power Switch Driver Circuit |
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#5 |
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diyAudio Member
Join Date: Dec 2003
Location: Toronto Canada
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#7 |
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Sometimes a square peg fits a round hole just fine
diyAudio Member
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you will really need an LED driver circuit like the softstart one from AMB or Hypex. its not absolutely necessary, but a separate power supply really should be used. the inrush from a DAC??? isnt usually that large in general, but the LED type momentary switches are not usually rated for switching mains, so you need some other circuit to take care of that using a relay and something to keep the relay latched. some of these also include sophisticated soft start circuits as well for large amps, some not. but its definitely not as simple as using one of these switches instead of a regular type, no matter the application
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#8 |
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diyAudio Member
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The push button will turn on a power amp and I already have a nice (at least I think so) soft-start circuit from 41Hz that features some surge protection, fair quality mains filtering, AC direct and AC delayed output, power for an ON/OFF LED. All operated by a latching power switch.
I intend to connect the AC direct output to IEC outlets wired to my DAC and possibly a pre-amp. The delayed AC output to feed the power-amp transformers (2x180VA). I hope this will ensure a correct start-up sequence, some mains protection and filtering for the whole system - all with the push of a single button. I do like momentary switches but I have bad experiences with the efficacy of simple de-bouncing circuitry. I did find and order this switch that I think will fit my needs perfectly. Thanks for all the suggestions! Last edited by NicMac; 22nd February 2010 at 08:26 PM. Reason: typo |
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