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Forum topic by 000 posted 08-19-2017 08:48 PM 1305 views 0 times favorited 13 replies Add to Favorites Watch
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2859 posts in 1671 days

08-19-2017 08:48 PM


13 replies so far

View MrUnix's profile


8089 posts in 2971 days

#1 posted 08-19-2017 08:52 PM

Breakers are not designed to be used as a light switch :)


-- Brad in FL - In Dog I trust... everything else is questionable

View Gilley23's profile


489 posts in 1154 days

#2 posted 08-19-2017 09:10 PM

I can’t tell by that picture, but that breaker probably isn’t rated for switch use. However, there are breakers rated to be used as switches and the one that you replace that one with should be just that.

View Fred Hargis's profile

Fred Hargis

6240 posts in 3265 days

#3 posted 08-19-2017 09:10 PM

I stand corrected about the switching function….still learning.

-- Our village hasn't lost it's idiot, he was elected to congress.

View becikeja's profile


1108 posts in 3585 days

#4 posted 08-19-2017 09:39 PM

Actually 10, 15, and 20 amp breakers used in your home are designed to be used as a switch. You will notice on the side SWD rated. This means the device is switching duty rated and must pass 10,000 operations. Larger breakers are not. The 10,000 on the side of the breaker represents AIR rating so don’t confuse the two. These are different ratings.

Looking at your breaker, you obviously had an over current situation. Most likely caused by stresses over time in the connection to the bus caused by the switching. The breaker only senses current on the load side not the line side. This fault was on the line side. I hope the main breaker feeding the bus tripped, if not, you escaped a potential fire, and I would I get the main replaced quickly.

-- Don't outsmart your common sense

View William Shelley's profile

William Shelley

609 posts in 2241 days

#5 posted 08-19-2017 11:19 PM

Fun fact: you can use an infrared camera to find breakers that are potentially going to fail soon. They will be much warmer (assuming relatively equal loads on all circuits)

-- Woodworking from an engineer's perspective

View TheFridge's profile


10859 posts in 2258 days

#6 posted 08-19-2017 11:41 PM

Bad connection to the bus and/or contact in breaker. Will cook itself out over time. A hot breaker is the first sign. Not coming back on losing continuity across it is obviously the last.

An overload of the breaker can make it burn out faster but it doesn’t really matter if it has good contact.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View 000's profile


2859 posts in 1671 days

#7 posted 08-20-2017 12:20 AM

I think it was a little of everything.
I did notice it being warmer the last couple of weeks.
I also noticed it being loose when switching off and on.

I’ll replace it with a SWD rated breaker.

Thank you all for the responses.

View Redoak49's profile


4731 posts in 2760 days

#8 posted 08-20-2017 12:23 AM

Why would you continue to use a breaker that was getting warm and loose??

I think you are very fortunate.

View firefighterontheside's profile


21045 posts in 2628 days

#9 posted 08-20-2017 12:32 AM

I would say it’s a good time to switch to LEDs.

-- Bill M. "People change, walnut doesn't" by Gene.

View 000's profile


2859 posts in 1671 days

#10 posted 08-20-2017 01:00 AM

Could be Bill

View Bill Berklich's profile

Bill Berklich

1108 posts in 1160 days

#11 posted 08-20-2017 02:29 AM

I would say it s a good time to switch to LEDs.

- firefighterontheside

Ditto on the LED suggestion. I just swapped 150W incandescents for 30W LEDs and boy what a difference! So worth the price just in light output not to mention the power savings. And reduced circuit load.

-- Bill - Rochester MI

View Sparks500's profile


277 posts in 1102 days

#12 posted 08-20-2017 12:51 PM

Thats a constant high load and the heat weakened the spring. Hope it didn’t damage that panel bus.
Ditto on LEDs.
Using them as a switch usually won’t wear out that part of the breaker, but will the actual switching mechanism.

-- A good day is any day that you're alive....

View Kelly's profile


3006 posts in 3716 days

#13 posted 08-21-2017 03:27 AM

I use my infrared thermometer and it detects differences between an open breaker and one running a load. It or the camera is a great way to monitor cable temps and such.

Fun fact: you can use an infrared camera to find breakers that are potentially going to fail soon. They will be much warmer (assuming relatively equal loads on all circuits)

- William Shelley

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