Today's Message Index:
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1. 05:31 AM - Re: Contactors (Sacha)
2. 06:47 PM - Re: Contactors (Robert L. Nuckolls, III)
3. 09:25 PM - Re: Contactors (Sacha)
Message 1
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Recommend you have either a battery contactor
or manually operated battery switch.
Yup, sounds like a good idea. For what it's worth there is an aircraft at
my local field which uses the same automotive "cube" 70A relay that I'm
using as a battery contactor. His engine is a Rotax 912 (the certified
version although his a/c is not TC being of his own custom design). I
measured the peak startup current this morning and it came to 110A, but the
automotive relay seems to take this in its stride. The owner told me he's
been running that way for 500 hours and 8 years without any problem.
Message 2
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At 07:29 AM 11/8/2013, you wrote:
>
> Recommend you have either a battery contactor
> or manually operated battery switch.
>
>Yup, sounds like a good idea. For what it's worth there is an aircraft at
>my local field which uses the same automotive "cube" 70A relay that I'm
>using as a battery contactor. His engine is a Rotax 912 (the certified
>version although his a/c is not TC being of his own custom design). I
>measured the peak startup current this morning and it came to 110A, but the
>automotive relay seems to take this in its stride. The owner told me he's
>been running that way for 500 hours and 8 years without any problem.
The plastic 'cube' relays I've seen all feature
fast-on tabs. The 70A versions too albeit larger
ones. How do you make wired connections to this
relay with robustness capable of carrying starter
current? Can you take some pictures of the installations
and post them?
Bob . . .
Message 3
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On Nov 9, 2013, at 3:46, "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectri
c.com> wrote:
> The plastic 'cube' relays I've seen all feature
> fast-on tabs. The 70A versions too albeit larger
> ones. How do you make wired connections to this
> relay with robustness capable of carrying starter
> current? Can you take some pictures of the installations
> and post them?
Yes the Faston tabs are 3/8" instead of the regular 1/4". Here's a pic I too
k yesterday but its not easy to see how the connections are made on the cube
.
Sacha
Note that he appears to be using something (on the left) that looks to me li
ke a battery contactor in lieu of a starter contactor. The master contactor i
s the red "384" series cube on the right.
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