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02-24-2015, 03:40 PM
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Join Date: Dec 2013
Location: Spokane Wa
Posts: 106
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Warning..Caution...
While Were on the subject.... Thought I could add some info for you...
Military Tech order 1-1a-14 Par 028 00
44. AS A SWITCH. Normally, a circuit breaker should
not be used as a switch. Most circuit breakers have a
life expectancy of 1/10 or less of the life of a switch.
They are not usually snap-action devices and should
not be considered as substitutes for switches, unless
defined as such in the particular specification. Devices
which are designed as circuit breaker / switches include
MIL-C-27588 and MS25004. Thermal C/B cycling should
be reduced as much as possible. When required should
be done with the circuit de-energized. Energized circuit
cycling should be reduced for safety applications,
required operational checks and flight crew training.
49. Periodic Cycling. During the yearly cycling (or
annual flight hour equivalent) inspection maintenance
interval, all circuit breakers should be mechanically
cycled. This cycling must be controlled by applicable
Maintenance Requirement Cards (MRC) and scheduled
with other aircraft inspections. If MRC's do not exist
for this requirement, contact cognizant engineering
authority to determine the correct interval for this action.
Once per year, pull the button out and push the cycle
circuit breaker in and out three times with no electrical
power applied. This helps clean possible corrosion from
the contacts. Opening circuit breakers a few times a year
does not lower their service life; however, the manual
operation of the circuit breaker should be limited in order
to avoid excessive dynamic wear of the trip mechanism.
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02-24-2015, 04:04 PM
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Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,019
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Quote:
Originally Posted by rvisnext
https://onedrive.live.com/redir?resi...nt=photo%2cJPG
All latching push buttons. The led light can come on when circuit is made, or like I did all the lights are wired to a dimmer. When "on" the button is in about an 1/8", when "off"button is flush. I still used regular toggles for a few functions, e-buss, starter etc.
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Where did you find these? Do you have part numbers? These are the types of push buttons I want to use with my VP-X Pro.
__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF
"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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02-24-2015, 04:18 PM
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Join Date: Oct 2012
Location: Clearwater, FL KCLW
Posts: 1,281
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I am mostly sticking with Van's KISS ideals, so used the Tyco SCBs. But I found that the colored toggled switch covers (I got mine from ACS) make things a lot neater and professional looking.
Chris
__________________
Chris Johnson
RV-9A - Done(ish) 4/5/16! Flying 4/7/16
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02-24-2015, 06:29 PM
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Join Date: Oct 2014
Location: WA
Posts: 70
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Quote:
Originally Posted by pazmanyflyer
Where did you find these? Do you have part numbers? These are the types of push buttons I want to use with my VP-X Pro.
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Search "plasmaglow switch" on amazon. U can also find them cheaper on eBay. I think I paid about $10 per switch when I bought in quantity
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02-25-2015, 02:21 AM
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Join Date: Nov 2006
Location: Savannah, GA
Posts: 1,029
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Personally , I'd love to find a cheaper equivalent of the Korry pushbutton switches you find on large aircraft, especially if I could get the switch lighting working the way I want. Honeywell's AML ones come close, but their current ratings aren't quite high enough for everything Iwwant to use them for.
__________________
RV-7ER - finishing kit and systems installation
There are two kinds of fool in the world. The first says "this is old, and therefore good"; the second says "this is new, and therefore better".
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02-25-2015, 09:22 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,419
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Quote:
Originally Posted by rmartingt
Honeywell's AML ones come close, but their current ratings aren't quite high enough for everything Iwwant to use them for.
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I used the AML switch for a high current on/off application by "Y"ing the two sides of a DPST switch so it shared the current between a pair of contacts, from a functional standpoint it became a SPDT.
So far, 4 1/2 years and 220 hours and doing just fine.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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