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TYCO CIRCUIT BREAKER W31 SERIES

From $29.95 to $59.75
P & B Part No. AMP
Rating
Beech Cessna Piper Part No. Price Buy
W31X2M1G1 1 - - - 11-00805 $54.75
Quantity
W31X2M1G2 2 - - - 11-03893 $59.75
Quantity
W31X2M1G3 3 - - - 11-04268 $45.75
Quantity
W31X2M1G5 5 - - - 11-03936 $33.75
Quantity
W31X2M1G7.5 7.5 - - - 11-03894 $39.95
Quantity
W31X2M1G10 10 - - - 11-03931 $39.50
Quantity
W31X2M1G15 15 - - - 11-03932 $29.95
Quantity
W31X2M1G20 20 - - - 11-03933 $29.95
Quantity
W31X2M1G25 25 - - - 11-03934 $34.95
Quantity
W31X2M1G30 30 - - - 11-04123 $39.50
Quantity
W31X2M1G35 35 - - - 11-04124 $29.95
Quantity
W31X2M1G40 40 - - - 11-03935 $29.95
Quantity
W31X2M1G50 50 - - - 11-04125 $39.50
Quantity
Subtotal $0.00
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Overview

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.
• Screw termination.
• Trip-free operation.


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Reviews

Good switch I was looking for that brand name.

Jeffrey D
April 14, 2019

Looks good. Fits in the hole. Seems fine. Query logical difference between line and load --- dont think that the electrons care

Gwen W
February 21, 2019

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.

Phill
February 12, 2019

Good out of the box. Time will tell longevity.

Steve
October 4, 2018

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.

Jay
June 18, 2018

I’ve used these switches in my last 2 homebuilt RV aircraft. I like them. Only problems I’ve 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.

Wiley E
May 14, 2018

brand new 2 amp switch did not work - requiring a second switch to be installed.

Doug
February 6, 2018

I have several of these installed First one to break off at the root of the toggle. Switching has worked fine. A little expensive For what they are. Switch was eight years old. Hope this incident was isolated.

Steve C
August 17, 2017

I would like to see a design that provides a better visual cue that its tripped. The disparity in pricing between the same switch in different amperages seems high.

Frank
April 8, 2017

I have replaced the W31X2M1G15 installed on my Whelan Flasher circuit twice within the last 4 years. The last one lasted only one year! They short out and the circuit won't stay energized. Very dissatisfied!

Mike P
September 8, 2014

Q&A

Q: Can you use these with a switch guard? I want to use two of these to run two fuel pumps and want to guard them whilst on so they cannot be bumped off. But - Can they still trip against the guard?

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.

Q: Are these CB toggle switches FAA/PMA?

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.

Q: Can these breaker/switches be legally used to replace fuses in vintage certificated aircraft?

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.

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