Fuse for the rear jacks

[Wayfinder]

This very old thread (Rear power jacks don't work) did not mention which was a good replacement for the Bussmann fuses that were arriving from Amazon with a single fuse in the bags. 

What is another "good" fuse to use on these rear jacks that are also  "time delayed" or "slow blowing" fuse?

This is what was mentioned in the thread.

https://www.amazon.com/Bussmann-MDL30-Time-Delay-Glass-Fuse/dp/B00139MFXM/ref=pd_cp_263_1?_encoding=UTF8&pd_rd_i=B00139MFXM&pd_rd_r=941YEBKBVDQW08XNT36X&pd_rd_w=zg0Jw&pd_rd_wg=eElSR&psc=1&refRID=941YEBKBVDQW08XNT36X&pldnSite=1

These are do not indicate slow blow, yes still a MDL30:
https://www.amazon.com/Bussmann-MDL-30-Fuse-Buss-MDL30/dp/B078SYLF3H

 

[Geronimo John]

I too have stumbled over the terminology. It is important that owners know where to use Slow Blow/Time Delay or Fast Acting fuses.  Fuses are application specific.  Motors with high current inrush need the SB/TD type.  Most electronics do not.  

Below is what I found from 9 years ago from Viperwk.  It is no longer totally inclusive for all manufacturers today, but gives us a pretty good hint.  For our jacks, the Bussman MDL  would be a good choice.

https://www.google.com/search?q=For+fuses%2C+what+is+time+delay+vs.+slow+blow&oq=For+fuses%2C+what+is+time+delay+vs.+slow+blow&aqs=chrome..69i57.10832j0j7&sourceid=chrome&ie=UTF-8

 New Haven, CT

10y 42,650 4,167

 More 

312 and 313 are specifically for Littelfuse.

In the glass cartridge variety for the 1/4 x 1 1/4" size, "time delay" fuses are
New Edison - MDL
Old Edison - BDL
Bussmann - MDL
Old Bussmann - MSL (http://tinyurl.com/mgjbq2c)
Gould - GDL
Littelfuse - 313

For "fast acting"
New Edison - AGC
Old Edison - BGC
Bussmann - AGC
Gould - GGC
Littelfuse - 312

So a fuse that has on it 3A BDL is a 3A slow blow fuse made by the old Edison company.

viperrwk

 

[Wayfinder]

Geronimo John,

 

Thanks for the education.  I researched the differences between all these acronyms for fuses I'm a bit more smahta now, until tomorrow when I forget.  Nothing like keeping it easy for dumb consumers like me.  LOL

Someone might ask what the downside, or upside, of a ceramic fuse is, like this one (YOLISTIC 30 Amp Slow-Blow Time Delay Fuse Ceramic 6x30mm). Compared to glass.

Also Grainger seems to spell it out quite well for the Brussmann 30amp fuse, and "should be" trustworthy compared to some Amazon resellers out there.

 

Take care!

Chris

[Geronimo John]

From my perspective the ceramic fuses work just as well as the glass cartage variety as listed above for our Ollie applications.   A ceramic fuse contains a blowout and can arch less than a glass ones for high current events.  However the down side is that the ceramic ones cost more.

Grainger likes it when customers absolutely trust that their products are genuine.  Casting stones at Amazon is part of that game, but not totally without merit.  Problem is knockoff products used in critical applications must work as advertised... such a fuses.   Hence for fuses, axle bearings and seals I buy from "more trusted" vendors than some Amazon resellers are.  That said I have bought fuses stocked at Amazon and they appeared to not be knock-offs.  So research the reseller if you really want to go that route.    

[Steve Morris]

I bought two 2-packs of the Blue Sea 30A slow-blow fuse from Amazon. Expensive, but I've used Blue Sea products for decades, and have never had even a hint of a problem.

 

https://www.amazon.com/dp/B00GZOIR1O?ref=ppx_yo2ov_dt_b_product_details&th=1

[Wayfinder]

14 hours ago, Steve and Deb said:

I bought two 2-packs of the Blue Sea 30A slow-blow fuse from Amazon. Expensive, but I've used Blue Sea products for decades, and have never had even a hint of a problem.

 

https://www.amazon.com/dp/B00GZOIR1O?ref=ppx_yo2ov_dt_b_product_details&th=1

Thanks Steve and Deb for the link to a product which, surprisingly, details out what the fuse is "typically" used for.  Also Geronimo John's links to better educate Ollie Owners, who are not super heroes with electrical yet.  It's great that the Blue Sea 30A slow-blow fuse really does a great job describing what these fuses are.  It's the first fuse description I've seen that does that well.  Agreed?

About this item (Blue Sea Systems MDL Fuses)

• 2 slow blow glass fuses per retail package
• For use with Blue Sea Systems' ST Glass Fuse Blocks and AGC or MDL fuse holders
• AGC and MDL fuses are typically used in DC systems up to 32V DC
• Visible indication of blown condition
• Slow blow glass fuse for pumps and other motors
• For use with Blue Sea Systems' ST Glass Fuse Blocks and AGC or MDL fuse holders
• AGC and MDL fuses are typically used in DC systems up to 32V DC
• Five per retail package
• 1,000A Interrupt Capacity

[Steve Morris]

2 hours ago, Wayfinder said:

• 2 slow blow glass fuses per retail package
• Five per retail package

Note that the description contradicts itself.There are TWO fuses per package. 

[Wayfinder]

Here's an update to the fuses.  

I finally received the new fuses.  They must have taken the low-boat from Ebay, so the receipt indicates.  But what is surprising is how heavy the fuses are.  They really have some weight to them.

Details:

5-pack of Littlefuse MDL-30, 30A 32V Time Delay (Slow Blow), as noted on the receipt.

A total of $11.10 (including shipping - $4.29)

See the 10% off code in my pic.  It may help a bit.

Thanks everyone for the help. 

I also finally received my Mobilith SHC PM 460 White Lithium Complex Multipurpose Grease for the rear jacks, time to re-grease those gears.  The 2016 grease is quite dry as noted in other threads.

[Ollie-Haus]

I've been putting together an on board tool kit for our future LE2 and I'm including in that kit spare fuses specific to our build. 

For anyone that needs spares or wants to do the same and put a kit together, a good source for high grade UL rated fuses at reasonable prices and quick shipping is McMaster-Carr. Most come in multi packs of 5pcs. Also I've found they usually ship within 24 hours. I usually receive items I order within 3 days. Here are links to pages for various fuses that would apply to our campers:

Time delay fuses:    https://www.mcmaster.com/products/fuses/time-delay-glass-tube-fuses/

Fast-acting fuses:  https://www.mcmaster.com/products/fuses/fast-acting-glass-tube-fuses/

Blade style fuses:  https://www.mcmaster.com/products/fuses/automotive-fuses/

Blade Style circuit breakers:  https://www.mcmaster.com/products/circuit-breakers/blade-style-dc-circuit-breakers/

For those unaware McMaster-Carr is one of the largest industrial supply companies in the US and carry substantial inventories of hardware items, industrial components and materials. And they sell retail to the general public. They aren't the cheapest, but you will find almost anything you would ever need in their warehouses ready to ship.