|P & B Part No.||AMP
These bi-metallic single pole breakers weigh less than 2 oz. and are especially suitable for homebuilt aircraft. Used as original equipment in Beech, Cessna and Piper aircraft. Maximum operating voltages: 32 VDC and 250 VAC (to 400 Hz).
Toggle Thermal Circuit Breaker
0.5 amp to 50 amp ratings may be used as on/off switch.
Cannot be reset against overload.
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Excelent product and quality, always pleased with you guys.
These fail. 3rd one now. 1st lost contact and caused Pamel out on approach 2nd one broke off 3rd fails after install and does not stay up. Unclear if they are fakes as markings and production location vary significantly.
I have several of these installed that are 9 years old. The handles are breaking off systematically On the ones most frequently used. Obviously they have a cycle life. Ones currently used on every flight are failing one by one. Aircraft has 500 hours now.
Works as expected.
Good switch I was looking for that brand name.
Looks good. Fits in the hole. Seems fine. Query logical difference between line and load --- dont think that the electrons care
Good out of the box. Per earlier review, pulled SAIB CE-13-22. It reports design mods to mitigate the reported failures on high-use SSCBs (cycled multiple times per flight) and there are no additional ADs at this time. Will monitor building from scratch so have a set of all-new CBs right now. Many thanks to prior reviewer Jay for that info in 2018.
Good out of the box. Time will tell longevity.
In Brief. The FAA has issued SAIB (CE-13-22) which advises owners of airplanes with W31 series switch style circuit breakers made by Tyco or Potter Brumfield of an airworthiness concern. There have been known continued failures of these SSCBs on Cessna Aircraft and other and on homebuilt aircraft. They do nor advise using them beyond 600 hours in heavy usage. Spend a little more and get a better circuit breaker.
Iâve used these switches in my last 2 homebuilt RV aircraft. I like them. Only problems Iâve had are After plane parked on ramp for an hour on a hot summer day, I could not turn on switches on due to heat from sun. Covered / shaded with my map for about 10 minutes to cool them down - started workin again. Just had toggle arm break off at base when I flipped switch on. (8yr old-360hrs) This is a first for me but I see a review where it happened to someone else...hmmm.
The arm is the same length as a toggle switch that would be used with at switch guard, so it "should" work fine. If the switch/breaker is positioned to be on when the guard is down, it would stay on until the guard is lifted and manually turned off. Remember each application is different and we cannot guarantee that it will work in all application or situations.
These toggle switches are commercial and have no FAA approval by themselves. They are commonly approved by the airframe approval if they were OEM on certificated aircraft. Please confirm in your parts manual or with you A&P to determine whether these can be used in your airplane.
These toggle switches are commercial and have no FAA approval by themselves. They are commonly approved by the airframe approval if they were OEM on certificated aircraft. Please confirm in your parts manual AND with you A&P to determine whether these can be used in your airplane.