Thanks for your reply and comments. When I saw the plot on break response
time, I immediately ordered the 20A instant breaker. As someone has
suggested, I will probably use the breaker as the off/on switch for my
Orion.
John, N9JG
>Now lets look at the 20A instant breaker.
>The instant break at 100% rating will not trip in one HOUR.
>At 135% rating (27A) it may trip.
>At 150% rating (30A) it will trip in .1 seconds MAX.
>We don't need to look at other currents from this point.
>
>I bought a 20A Fast breaker and one time I saw 26A on the Astron
>RS-35M meter and the breaker didn't trip so I killed the power
>after about 5 seconds. At this time I went back to the 18A
>instant breaker I had used with the Corsair II and now it will
>trip at a max of about 24.3A though it happens so fast I can't
>really tell but it's over 20A. Therefore with my Jupiter I use
>the 18A instant though a 20A would be ok. With the Orion I think
>that the 20A would be the best choice though a 22A MIGHT be ok if
>you're willing to accept 33A and up to 5 seconds before trip.
>
>73 Jim K4CGY
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