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Alan Carter
Joined: 02 Jul 2012
Posts: 378
Location: Kent, England.
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 Posted: Tue Feb 26, 2013 5:56 pm Post subject: Starter Relay, Press button switch is 6 Amps OK |
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starter motor.
I want to install a separate starter button, i have purchased a press button switch, rated at 6 amps (at) 12 v and 6 amps (at) 250v
Is this OK.
The switch spec.
http://uk.rs-online.com/web/p/push-button-switches/6915242/?
Alan
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jay(at)horriblehyde.com
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| Posted: Wed Feb 27, 2013 2:18 am Post subject: Starter Relay, Press button switch is 6 Amps OK |
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Yep, that will be fine; your starter relay will draw 3-5 A and since you're
only drawing that for a couple of seconds at a time no problem. Be sure to
put a reverse biased diode across the coil of the starter relay as this will
prolong the life of your switch; if you're not sure how to do that I can
send you a diagram.
The diode short circuits the relay coil when you release the switch so that
the stored magnetic energy in the coil 'recirculates' in the coil and dies
down, rather than keeping an arc going across your switch contacts and
burning them.
Jay
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rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
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| Posted: Wed Feb 27, 2013 1:16 pm Post subject: Starter Relay, Press button switch is 6 Amps OK |
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Alan, I use this one:http://www.bandc.biz/starterpush-buttonswitch.aspx
Works great, comes from Newton, KS so no currency conversions.
You might also consider the Aeroelectric Connection also here on the Matronics forums. Bob has two proven electrical architectures for Rotax engined aircraft. Easier than inventing something new and Bob's book will give you great insight into how to efficiently herd electrons about.
Rick Girard
On Tue, Feb 26, 2013 at 7:56 PM, Alan Carter <alancarteresq(at)onetel.net (alancarteresq(at)onetel.net)> wrote:
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Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
[quote][b]
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