nuckolls.bob(at)aeroelect
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 Posted: Fri May 13, 2011 10:00 am Post subject: Glasair contactors |
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| Quote: | Bob,
The contactors that Glasair sent in my 24V option package are Cole-Hersee 24063 85A continuous 24V units. The 12V guys received similar 85A units. |
Okay. C-H builds some robust stuff.
Let's keep in mind that relays and contactors are
rated in the tens of thousands of operations. Using
a C-duty contactor as a starter control may set
up a situation where design goals are not going
to be realized in the field . . . but a contactor
failing after 5 years of service is no big deal
to the owner.
I would judge that the vast majority of OBAM aircraft
flying have never had to replace a starter contactor . . .
whether "rated" for that service . . . or not.
We recommend the intermittent-duty, starter-rated
devices because they're no more expensive than their
C-duty cousins and are DESIGNED for that task. In
no way does that suggest that using a C-duty contactor
will produce unsatisfactory service life as perceived
by the owner/operator. However if that same owner/operator
were using the contactor in a crop duster than was
expected to produce a dozen starts every working day . . .
Bob . . .
[quote][b]
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