nuckolls.bob(at)cox.net
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 Posted: Sat Dec 15, 2007 11:20 am Post subject: Jabiru 3300 Schematic and "solid state contactors" |
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There's another issue with respect to substituting the
silicon marvels for a metalic switching device as a battery
contactor . . . battery contactors are noted for their
ability to carry current equally well in BOTH directions.
I.e., the contactor must allow current FROM the battery
to start the engine and power useful goodies in case of
alternator failure. The contactor must also carry current
TO the battery to recharge it.
The present state of the art for solid state contactors
makes them VERY good substitutes for carrying current
one way (under 1 milliohm) but not good at going the
other way.
Bob . . .
At 05:29 PM 12/14/2007 -0800, you wrote:
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When I raised exactly the same point a couple of months ago in re: the Rotax
20A alternator, I was quickly reminded that the starter current is a wee bit
more than the 20A that the SS relay can handle.
Best regards,
Rob Housman
The standard alternator for the Jabiru 3300 is rated at 20-amps.
Would a solid state relay, such as the AEC3030 or the Perhellion PowerLink
Jr. III 35A Solid-State Relay, perform satisfactorily as the main battery
contactor in the Z21A design?
Has anyone tried using a solid state relay as a battery contactor?
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