Today's Message Index:
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1. 10:13 AM - Wig wag switching (Larry Ford)
2. 12:13 PM - Re: Re: Interav OV relay: how to do an integrity test. (Bob Verwey)
3. 06:08 PM - Re: Wig wag switching (user9253)
Message 1
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| Subject: | Wig wag switching |
I am replacing the 12v incandescent wing recognition lights (2) and nose
landing light with a Flyleds array in the nose rated at 10 amps and the two
wing lights at 2 amps. I would like to maintain the two panel mounted SPST
switches from the previous installation but to operate the wigwag circuit
and switch all three to constant "on", one of the switches has to be a DPDT.
Theoretically, I could power a DPDT relay from the SPST switch but searching
Mouser and Digikey I am finding a dearth of possible candidates. Another
option would be to use two SPST relays of which there are plenty and operate
them both simultaneously via the panel switch. I would appreciate advice on
the variables for the contact materials, coil resistance, etc. for this
application.
Larry
Glasair I RG
Message 2
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| Subject: | Re: Interav OV relay: how to do an integrity test. |
Hi Bob,
Indeed, a potted version of the device so no salvageable knowledge there!
Appreciate the feedback; this is one for the bin!
Best Regards,
Bob Verwey
082 331 2727
>
Message 3
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| Subject: | Re: Wig wag switching |
If two SPST relays will work, then why not one DPST relay?
Mouser #:769-ACTL3CR3V
Silver Alloy contacts are good for power applications.
Gold contacts are for small signals, not power.
Coil resistance should be greater than 100 ohms. Otherwise the relay will get
too hot.
Here is a DPDT from Digikey. Part number: A102CS12VDC
Looks like both relays above have pins that require soldering.
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Joe Gores
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http://forums.matronics.com/viewtopic.php?p=502658#502658
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