[Amps] AC to DC

[R.Measures]

On Jan 30, 2006, at 7:06 PM, Barrie Smith wrote:

>>
>> At 10:24 AM 1/30/2006, David C. Hallam wrote:
>>
>>> Bill states that an AC relay will
>>> operate without damage at a DC voltage of about 70% of its rated AC.
>
>> I'd be careful of generic statements like that. You're likely to come
>> across a relay where that is not true. Use it as a starting point and
>> test it carefully.
>>
>> 73, Bill W6WRT
>
> All (quite a number, actually) of the 120 volt AC relays I've tried and
> tested have not closed at 12 volts DC, not even with help.  Many will 
> close
> at about 18 to 20 volts, some needing a nudge.  All will close at what
> appears to be proper speed at 26 volts DC.

I have found the same, Barrie.
>
> None exhibited over-heating.
>
> 73, Barrie, W7ALW
>
>
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Richard L. Measures, AG6K, 805.386.3734.  www.somis.org