Fusible Links Blown

[Tanks_Alot]

ryanjones2150, In your photo, I like the links stamped "ECONOMY DELAY". That is an interesting marketing approach!

Thanks to all for the information with my issue. These forums are a great way to get perspective.

Thanks A Lot,
TanksAlot

[ryanjones2150]

My full time job I’m a captain in the fire department here for the city. The rank insignia for that is a pair of bugles.

[jjohn76]

What's with the 2bugles?

[ryanjones2150]

Weird. I just figured Miller electric was the only company in the entire world to use fusible links. The breadth of your knowledge is astounding.

[Franz©]

Like I been sayin 2bugles, ain't unique to the Miller department of that world wide combine.

Maybe you can text to some Chinee fellow and find some really cheap.

[ryanjones2150]

So glad you updated us on that.

[Franz©]

NEWSFLASH- those links were not specifically built for miller department of Interglobalsupergalactic.

Renewable fuses were the order of the day well into the 60s, and are still in use today across industry. Bussman and Shawmut still produce them every day.

[ryanjones2150]

Good lord man!

The one on the far right is the original one that I ruined. The others are what my local parts house got for me, including one that was a NOS exact match. The others are just the same rated fusible links that fit those dimension.

$2 each.

But at least you knew you were getting something that would fit. That’s price we pay to be certain I suppose.

[Tanks_Alot]

ryanjones2150, Through my Miller reseller $19 each. PN: 212988 see the photo in my previous post.

[ryanjones2150]

To blow mine, I was pushing the machine way over it’s limit for far too long. If you keep blowing them, either you’re over working your gear or there’s something wrong. I was running a scratch start tig rig at about 225 amps when the rectifier is very clearly marked to not exceed 150. Whooda thunk it was right?

How much did those cost you with a miller part number? I’m interested to know because mine were maybe $2 each from a parts house. They’re a very common component. I bought five, one to replace then have some spares, but I haven’t needed them. Most got 5 because there was a minimum order.

[Franz©]

Got lucky by switching from google to Duckduckgo for a search engine. "renewablefuselink" = search term

Bet they are all a lot less expensive than Miller department of Supergianttransglobal part sales.

https://www.moyerelectronics.com/Departments/Products/Cooper-Bussmann/Cooper-Bussmann-Renewable-Fuse-and-Fuse-Link/Renewable-Link.aspx

https://www.alans-sales.com/renewable-links-c-57_60.html

https://www.littelfuse.com/products/fuses/specialty-power-fuses/fuse-links/lkn/lkn225.aspx

Manufacturer lists higher amperages as "obsolete" and their site lets you search all their distributors for availability

https://www.grainger.com/category/electrical/power-management-circuit-protection-and-distribution/fuses-and-accessories/fuse-accessories/fuse-links

lists links as available in their system, usual insane pricing

I'd suggest if you have a machine using these fuses investing in spares now is a good idea.

[Tanks_Alot]

I could not find any issues with the welder so I changed out the fusible links with ones that I ordered from Miller (photo) and put back into production. Welding for 3 weeks 8 hours a day. No issues. Thanks for all your support.

[ryanjones2150]

I have a different machine that I popped mine in. I ended up going to a local industrial electric supply for them. They were maybe a few bucks a piece.

[jjohn76]

I popped mine a couple years ago, the max output is 150 amps, I was pushing 225 through it. Oops.

Those are each listed as 350 amp 250V links in the manual, but they're also listed as a recommended spare part... I guess they're meant to go out? It's still probably worth checking the output rectifier.

[ryanjones2150]

I popped mine a couple years ago, the max output is 150 amps, I was pushing 225 through it. Oops.