My problem is you’d need two of those per fuse, so $40 for used holders with no protective cover.
A new one with cover is $45.50 on Amazon.
Class t fuse without holder
- Thread starter Bluedog225
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My problem is you’d need two of those per fuse, so $40 for used holders with no protective cover.
A new one with cover is $45.50 on Amazon.
SniperX
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I get that. I just paid $177 for that stupid fuse but I think I bought the last one in the country (400A), so past the "things cost too much money" stage, lol. When I get the fuse in, I will order that and see if it fits, if not, I will ship it back because it definitely needs a cover.
You're not kidding.. and Mouser is giving this for when they are expecting to have stock again!
SniperX
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I searched for days and another forum member found it (last one) and I bought it. Could have been $1000 and I guess I would have had to cough it up because my system is worth 10's of thousands of dollars and I am not scrimping on a fuse. Now, I need to find a fuse block holder with cover (or I can have someone 3D print me one at this point)You're not kidding.. and Mouser is giving this for when they are expecting to have stock again!
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chess-equality
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Well if I'm not buying I will just DIY any cover...I don't want my fuses to be nekked!
You're not kidding.. and Mouser is giving this for when they are expecting to have stock again!
View attachment 108216
I recently got a similar response to an order I placed:
SniperX
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Never a bad idea to have spares for most things in life, lol, but especially when you start to notice how hard it is getting to get these. I called a local company this morning to see if they had any on a shelf and they were all cheerful telling me they would call their supplier and how many did I need? I laughed and said, "If you can find one, that would be great, if you can find 2, that would be even better but you won't be able to find it. Oh, by the way, see if you can find a fuse block with a cover for it while you have your supplier on the phone."
Bluedog225
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Best strategy as far as I can tell, in these times of shortage, it to buy the holder and fuse together, and several spares to fit the holder. All at once. T fuses of a particular size are a pain to find these days.
I ended up buying from China. Couldn’t find any in stock here.
SniperX
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In the pre-COVID world, that would have been easy, but I am not going to pass up a 400A T class fuse because it does not come with a fuse block holder in a Post-COVID world. It was not sold with a holder but it was the last one I could find. Do a search for 400A T Class fuses and you will see what we are talking about. If you find any, buy them all and then resell. You would make a mint.
Found my 250A at Shunts.com where i got the first ones. More than I paid the first time but not terrible, much less than the $100+ that other places wanted (IF they had it!). Includes a bare wire holder, which I realize now is the same holder I bought the first time which sucks because I should have gotten the lug holder. Dummy....
Yeah.. I see they still have 250A and 300A ones available
Oh.. and the 175A and 200A.. but again the Midnite 175A and 250A would work as well and you have cutoff switch (breaker) to boot.
chess-equality
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How about a DC MCCB (molded case circuit breaker) as alternative? I'm using the Suntree / Renogy 160A DC MCCB for my 12v system, breaking capacity is up to 20kA.
But the really big ones are quite expensive, I think. This one's up to 100kA:
But the really big ones are quite expensive, I think. This one's up to 100kA:
NOARK Electric: Ex9MD4H TM 400 3P
www.noark-electric.eu
Found my 250A at Shunts.com where i got the first ones. More than I paid the first time but not terrible, much less than the $100+ that other places wanted (IF they had it!). Includes a bare wire holder, which I realize now is the same holder I bought the first time which sucks because I should have gotten the lug holder. Dummy....
They have good prices.
Those are good breakers but Noark is pretty hard to get in USA. Closest I found was an 150A version of an MCCB at automationdirect.com for about $260 and is 3 pole version.
SniperX
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I will go check.
chess-equality
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Schneider also makes DC MCCBs but I'm also not sure if they're available there.
Molded Case Circuit Breakers - MCCB | Schneider Electric Global
Schneider Electric Global. Discover our range of products in Molded Case Circuit Breakers - MCCB: ComPact NS
www.se.com
Hedges
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And here it is, in stock.
Class T Fuse Block with Insulating Cover - 225 to 400A - Blue Sea Systems
Allows use of Class T fuses for high speed circuit protection of electronic equipment and inverters.
www.bluesea.com
If you can find it, I suggest the one with clips to hold cover instead. I have the above one, difficult to remove.
Class T Fuse Block with Insulating Cover - 225 to 400A - Blue Sea Systems
Allows use of Class T fuses for high speed circuit protection of electronic equipment and inverters.
www.bluesea.com
I'm not sure those are UL listed. I used them for battery.
I bought the UL listed Bussman for use on AC side, wanted to add a fuse as additional protection coordinated with main breaker.
Interesting they are heat sinked; does Bussman know something? You're probably fine in free air, maybe makes a difference in a box (which also takes care of the need for a cover.)
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