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What am I looking at? 5

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itsmoked

itsmoked

Electrical
Feb 18, 2005
19,114
Screenshot_20220106-144758_Messages_mscj1z.jpg


Yeah yeah I got the fuse at the top than can be repaired with a penny..

Those things at the bottom?

This panel is controlling a 240V water heater... with the one screw in fuse.
6faghec.gif


Keith Cress
kcress -
 
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I believe those are all branch circuit fuses. The screw-in is not for your water heater. I have a somewhat similar panel in a house that was electrified in the '50's. The larger capacity circuits used pull out fuse holders that contained cartridge fuses, which look somewhat like those in your picture. My panel does have a main fuse but it is separate component mounted at the top of the panel. Your main fuse may be in another panel.
 
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Brings back memories. The horizontal bars are the grab handles for giving enough grip to yank those out. I had a neighbor one time ask if I knew how to repair a cartridge fuse. Thanks to blue laws and it being Sunday night, not a store was open; not a good thing when the A/C no longer works. My (then) new house had been changed to a breaker panel, so no fuses remained.
 
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Yep. Pull out fuse holders. The retractable handles pull out so that you can grip them, then you can yank the entire assembly out, which is holding the cartridge fuses. It has a secondary function as the disconnect. I've seen those before in old old buildings. General Switch maybe? Bulldog? I can't remember any more.


" We are all here on earth to help others; what on earth the others are here for I don't know." -- W. H. Auden
 
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AHhh yes.. That's making sense now! Creepy that there's bare metal on those yank-outs.

Ol' sharp eyes IR. I see that now.

Thanks all for the education.

Keith Cress
kcress -
 
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If my eyes were really sharp, I'd be able to see more than "??LL??? ELECTRIC PRODUCTS"

fuse_azubm5.png


The material looks like Bakelite, so any handle made from it might snap off, although I did see a couple of examples where it looks like a pull handle is Bakelite.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
 
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I think it might say Bulldog Electric Products on one end and Detroit Mich USA on the other end
 
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Definitely says "Bulldog", who went on to become ITE/Imperial, then ITE/Gould, then ITE/Siemens, then just Siemens. The "Bulldog" name was dropped in the late 70s I believe when Siemens bought them and already had a competing line of disconnects and fused pullouts (the other "Bulldog" products were "Pushmatic circuit breakers, which Siemens kept but later discontinued too). Most of the Bulldog pull-out switches I encountered were from the 50s and 60s, they all had a steel "D Ring" handle. Those are likely older, maybe 30s or 40s? Might be time to replace that stuff, parts will be unobtanium.


" We are all here on earth to help others; what on earth the others are here for I don't know." -- W. H. Auden
 
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Ooooh! How very Avatar of you, jraef!!

Um . . . spelling? Unobtanium? Unobtainium? Where did I leave that screenplay again . . .

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
 
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So that's where they got it! [atom]

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
 
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Yeah, one type is the infinitely stiff material with zero density that we always need to solve our system design problems. Almost needed it for a remodel of our previous house, but we gave up on doing certain mods. A 320C80 that can process video in real time is yet another type; we once cleverly bought a quad C80 board (9 GLFOPS!!) to do some processing, but it was pitifully slow on video and we had to swap out for a quad PowerPC, which was far better but was still a dog. Wasn't necessarily the boards' problem, our algorithm design sucked, as it later turned out.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
 
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[hammer]

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
 
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