new fuses

[richshoop]

Got a product announcement that is probably of interest. ATO style fuse with builtin led indicators, about 68 cents a piece, quantity 10 minimum order.
https://www.waytekwire.com/item/46283/Littelfuse-ATO-ATC-Fuse-LED-SmartGlow-/

 

[john r. lebetski]

I have heard of problems with LED fuses on this forum. Plus don't you have to orient them correctly at instal?
--
John Lebetski
Woodstock, IL
77 Eleganza II

 

[Ken H.]

Those are "nice" and can be useful for detecting failures. BUT, don't make
the mistake that I (with an MSEE) made once: Checking for voltage with a
high impedance voltmeter on a device supplied from one of those will give
incorrect results! Why? Because the small current passed by the
illuminated LED is more than adequate to supply the high impedance meter.
I incorrectly concluded that a refrigerator control board was bad because
it had full 12VDC applied but didn't perform its functions. The 12VDC was
indeed there, but the LED fuse limited current to a small fraction of the
current required by the board.

Using a trouble light with a bulb (NOT an LED) would have provided more
accurate troubleshooting results because the bulb would not have
illuminated with the tiny current.

Just a reminder.

Ken H.

> Got a product announcement that is probably of interest. ATO style fuse
> with builtin led indicators, about 68 cents a piece, quantity 10 minimum
> order.
> https://www.waytekwire.com/item/46283/Littelfuse-ATO-ATC-
> Fuse-LED-SmartGlow-/
> _______________________________________________
>

 

[RJW]

> Got a product announcement that is probably of interest. ATO style fuse with builtin led indicators, about 68 cents a piece, quantity 10 minimum
> order.
> https://www.waytekwire.com/item/46283/Littelfuse-ATO-ATC-Fuse-LED-SmartGlow-/

Those fuses have been around for a few years. On June 15, 2013, I bought a 42 fuse variety pack (included 7 of each: 5 10 15 20 25 30 Amp Fuses) of
them on Amazon for around $23. "Littelfuse 00940400ZGLO Smart Glow Blade Style Assorted Multi-Pack Fuse - 42 Piece".

I don't think they have to be installed in any specific way.

I was not aware of the problems Ken had with diagnosing electrical problems. I will keep that mind when I have problems.

I like having a LED to let me know a fuse has blown. That feature has saved me time on 2 different occasions.

--
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com


Coop Roller Cam 455, Howell TBI + EBL, 3.42 FD, Quadra Bag, Macerator, Manny Tranny etc.

 

[Bob Dunahugh]

There great as long as you take note of Ken Henderson's remarks. I have 3 - 12 volt panels that have the LED in the panel itself. The 8 circuit LED panel was about $7. Then uses the standard blade fuses. I have a 12 circuit panel for the house. One 8 for circuits that are ignition controlled. Takes the excess load off our stock ignition that wasn't meant to handle added 12v loads. Then one more 8 up front that is 12v on all the time. The last 2 are below the wiper motor. Under the front hatch. And have a clear plastic cover. Bob Dunahugh Member GMCMI