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billhuntersemail(at)gmail
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 Posted: Fri Mar 29, 2019 9:17 am Post subject: Klixon Circuit Breakers |
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I am needing to replace a klixon 7277 circuit breaker and I see that they come in two varieties.
Does anybody know what the difference between the 7277 - 1 and the 7277 - 2 circuit breakers is?
Thanks,
Bill Hunter
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jsajpf
Joined: 21 Feb 2019
Posts: 8
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billhuntersemail(at)gmail
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| Posted: Fri Mar 29, 2019 10:03 am Post subject: Klixon Circuit Breakers |
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| Quote: | The -2 is a military spec grade device
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I guess another way to explain is "the - 2 is more expensive"
John thanks for the quick reply in your help!
Thanks,
Bill Hunter
On Fri, Mar 29, 2019, 11:00 jsajpf <john.friday_adis(at)sbcglobal.net (john.friday_adis(at)sbcglobal.net)> wrote:
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harleydixon
Joined: 17 Sep 2016
Posts: 18
Location: Henrietta, NY
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| Posted: Fri Mar 29, 2019 10:06 am Post subject: Klixon Circuit Breakers |
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From Sensata (https://www.sensata.com/);
The military grade version of this circuit breaker is the Klixon® 7274- 2 series. The 7277 and 7274-2 series circuit breakers are physically and electrically identical, with the exception that the 7277 has wider calibration limits.
Harley
On 3/29/2019 1:16 PM, William Hunter wrote:
| Quote: | I am needing to replace a klixon 7277 circuit breaker and I see that they come in two varieties.
Does anybody know what the difference between the 7277 - 1 and the 7277 - 2 circuit breakers is?
Thanks,
Bill Hunter
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| | - 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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_________________
Harley Dixon
Long EZ N28EZ
Canandaigua Airport (D38)
Canandaigua, NY |
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billhuntersemail(at)gmail
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| Posted: Fri Mar 29, 2019 10:20 am Post subject: Klixon Circuit Breakers |
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| Quote: | The military grade version of this circuit breaker is the Klixon® 7274- 2 series. The 7277 and 7274-2 series circuit breakers are physically and electrically identical, with the exception that the 7277 has wider calibration limits.
Looking at the Aircraft Spruce website the Klixon circuit breaker 7277-1-10 is $36 and the Klixon circuit breaker 7277-2-10 is only $21 so it seems to me that the - 2 would be lower quality and therefore lower cost.
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Thanks,
Bill Hunter
On Fri, Mar 29, 2019, 11:11 Harley Dixon <harley(at)agelesswings.com (harley(at)agelesswings.com)> wrote:
| Quote: | From Sensata (https://www.sensata.com/);
The military grade version of this circuit breaker is the Klixon® 7274- 2 series. The 7277 and 7274-2 series circuit breakers are physically and electrically identical, with the exception that the 7277 has wider calibration limits.
Harley
On 3/29/2019 1:16 PM, William Hunter wrote:
| Quote: | I am needing to replace a klixon 7277 circuit breaker and I see that they come in two varieties.
Does anybody know what the difference between the 7277 - 1 and the 7277 - 2 circuit breakers is?
Thanks,
Bill Hunter
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jsajpf
Joined: 21 Feb 2019
Posts: 8
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| Posted: Fri Mar 29, 2019 4:47 pm Post subject: Re: Klixon Circuit Breakers |
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Bill,
I owe you an apology. The info I posted was incorrect due to my mis-reading of the web site info.
The 7277-1 contains an auxiliary circuit that closes when the CB trips. Ref. the drawings available on the Sensata site for the 7277 series breakers (https://www.sensata.com/sites/default/files/media/documents/ourproducts_AircraftCircuitBreaker_7277Series_7277-1-R_drawing_pdf.pdf) and (https://www.sensata.com/sites/default/files/media/documents/ourproducts_AircraftCircuitBreaker_7277Series_7277-2-P_drawing_pdf..pdf).
The aux circuit would be suitable for a CB monitoring system (i.e. Airbus a/c display cb status to the crew and annunciate a trip for critical systems).
Sorry for the confusion,
John
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billhuntersemail(at)gmail
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| Posted: Fri Mar 29, 2019 6:02 pm Post subject: Klixon Circuit Breakers |
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Not a problem... I was able to figure out that the - 2 was the cheaper so that is what I got... thanks again!!!
Thanks,
Bill Hunter
On Fri, Mar 29, 2019, 17:53 jsajpf <john.friday_adis(at)sbcglobal.net (john.friday_adis(at)sbcglobal.net)> wrote:
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