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jskiba(at)icosa.net
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 Posted: Sun Dec 22, 2013 8:28 am Post subject: Any know is there a typical faliure mode for Soild State Rel |
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Any know is there a typical failure mode for Solid State Relays?
Like do they typically fail OPEN ??? or do they Typical fail CLOSED (just like sometimes of a typical mechanical relay that the points weld together or the spring fails ?)
I am considering using solid state relays to replace mechanical relays but do not know if the ssr has a failure mode worse than them.
I have attached one relay I found thus far to possibly replace a hydraulic motor contactor for a landing gear pump.
Thanks in advance and HAPPY HOLIDAYS !
No virus found in this message.
Checked by AVG - www.avg.com
p>
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ssr.pdf |
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sprocket(at)vx-aviation.c
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| Posted: Sun Dec 22, 2013 9:44 am Post subject: Any know is there a typical faliure mode for Soild State Rel |
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The failure mode for these devices are highly dependent on the internal construction. Contacting the manufacturer is only way to be sure.
If it was just the internal powerFET that was the issue, the failure modes are well understood but details of the mechanical packaging may dominate.
Vern
From: Jeffrey Skiba (jskiba(at)icosa.net)
Sent: Sunday, December 22, 2013 8:27 AM
To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)
Subject: Any know is there a typical faliure mode for Soild State Relays
Any know is there a typical failure mode for Solid State Relays?
Like do they typically fail OPEN ??? or do they Typical fail CLOSED (just like sometimes of a typical mechanical relay that the points weld together or the spring fails ?)
I am considering using solid state relays to replace mechanical relays but do not know if the ssr has a failure mode worse than them.
I have attached one relay I found thus far to possibly replace a hydraulic motor contactor for a landing gear pump.
Thanks in advance and HAPPY HOLIDAYS !
No virus found in this message.
Checked by AVG - www.avg.com
p>
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.3462 / Virus Database: 3658/6941 - Release Date: 12/22/13
[quote][b]
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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berkut13(at)berkut13.com
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| Posted: Sun Dec 22, 2013 9:00 pm Post subject: Any know is there a typical faliure mode for Soild State Rel |
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That’s what I did...less weight, less space, less environmental issues, cleaner operation (no contact bounce), etc.
http://www.berkut13.com/berkut50.htm#SSR
If you hydraulic system is anything like mine, you should also be used the snap action hydraulic pressure switches.
Good luck,
James
Berkut/Race 13
www.berkut13.com
Facebook: Berkut13
From: Jeffrey Skiba (jskiba(at)icosa.net)
Sent: Sunday, December 22, 2013 10:27 AM
To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)
Subject: Any know is there a typical faliure mode for Soild State Relays
Any know is there a typical failure mode for Solid State Relays?
Like do they typically fail OPEN ??? or do they Typical fail CLOSED (just like sometimes of a typical mechanical relay that the points weld together or the spring fails ?)
I am considering using solid state relays to replace mechanical relays but do not know if the ssr has a failure mode worse than them.
I have attached one relay I found thus far to possibly replace a hydraulic motor contactor for a landing gear pump.
Thanks in advance and HAPPY HOLIDAYS !
No virus found in this message.
Checked by AVG - www.avg.com
p>
[quote][b]
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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jluckey(at)pacbell.net
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| Posted: Sun Dec 22, 2013 9:52 pm Post subject: Any know is there a typical faliure mode for Soild State Rel |
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they sure are pricey - $130 ea. (at) Mouser, ouch!
From: "berkut13(at)berkut13.com" <berkut13(at)berkut13.com>
To: aeroelectric-list(at)matronics.com
Sent: Sunday, December 22, 2013 8:59 PM
Subject: Re: Any know is there a typical faliure mode for Soild State Relays
That’s what I did...less weight, less space, less environmental issues, cleaner operation (no contact bounce), etc.
http://www.berkut13.com/berkut50.htm#SSR
If you hydraulic system is anything like mine, you should also be used the snap action hydraulic pressure switches.
Good luck,
James
Berkut/Race 13
www.berkut13.com
Facebook: Berkut13
From: Jeffrey Skiba (jskiba(at)icosa.net)
Sent: Sunday, December 22, 2013 10:27 AM
To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)
Subject: Any know is there a typical faliure mode for Soild State Relays
Any know is there a typical failure mode for Solid State Relays?
Like do they typically fail OPEN ??? or do they Typical fail CLOSED (just like sometimes of a typical mechanical relay that the points weld together or the spring fails ?)
I am considering using solid state relays to replace mechanical relays but do not know if the ssr has a failure mode worse than them.
I have attached one relay I found thus far to possibly replace a hydraulic motor contactor for a landing gear pump.
Thanks in advance and HAPPY HOLIDAYS !
[url=][/url] No virus found in this message.
Checked by AVG - www.avg.com
p>
[quote]www.aeroelectric.com * HomebuiltHELP [url=http://wwe [b]
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edpav8r(at)yahoo.com
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| Posted: Mon Dec 23, 2013 9:03 am Post subject: Any know is there a typical faliure mode for Soild State Rel |
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On Dec 22, 2013, at 10:51 PM, Jeff Luckey <jluckey(at)pacbell.net (jluckey(at)pacbell.net)> wrote:
| Quote: | they sure are pricey - $130 ea. (at) Mouser, ouch!
|
eBay is your friend. A search for "SSR 100A" returns 91 hits, including appropriate heatsinks, starting at ~$9 delivered.
This presumes the words "China" and "Hong Kong" don't scare you. For solid state devices like these, I wouldn't lose any sleep.
Eric
[quote][b]
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