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Tyco W31 toggle breaker

 
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dlm34077(at)gmail.com
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PostPosted: Sun Mar 27, 2022 12:03 pm    Post subject: Tyco W31 toggle breaker Reply with quote

Anyone have any experience with their reliability, MTBF, failure indications? probability of failure and any relationship to current load?

David
N46007


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Bob Turner



Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA

PostPosted: Sun Mar 27, 2022 6:48 pm    Post subject: Re: Tyco W31 toggle breaker Reply with quote

I have about 8 of them. One of them suffered infant mortality at about 4 hours since new. Mechanically failed, knocked a hole in the back of the plastic case, when first turned on, I think. Others (plus replacement) are all still working fine, ten years later.

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bdgillespie215(at)gmail.c
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PostPosted: Mon Mar 28, 2022 5:42 am    Post subject: Tyco W31 toggle breaker Reply with quote

Another data point. I had one semi D.O.A.
No connectivity up front with switch on - unless the screw tab was “wiggled” then it was intermittent. It was replaced under warranty. The replacement has been flawless for over a year now.

Byron

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Quote:
On Mar 27, 2022, at 10:52 PM, Bob Turner <bobturner(at)alum.rpi.edu> wrote:



I have about 8 of them. One of them suffered infant mortality at about 4 hours since new. Mechanically failed, knocked a hole in the back of the plastic case, when first turned on, I think. Others (plus replacement) are all still working fine, ten years later.

--------
Bob Turner
RV-10 QB




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carl.froehlich(at)verizon
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PostPosted: Mon Mar 28, 2022 9:47 am    Post subject: Tyco W31 toggle breaker Reply with quote

I used them in three RVs over the last ~22 years. Never had a failure.

I use them for things like:
- Boost Pump
- Landing and Nav/Strobes
- Pitot heat

I use the Tyco pull breakers for stuff that is not controlled with a switch, like:
- Avionics
- Alternator voltage regulator
- Trim servos
- Autopilot servos

Carl

Quote:
On Mar 27, 2022, at 9:12 PM, dlm <dlm34077(at)gmail.com> wrote:


Anyone have any experience with their reliability, MTBF, failure indications? probability of failure and any relationship to current load?

David
N46007


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