[Kenwood] TL-922 Fuse Source 250V 15A?

[Clif Holland]

The 922 uses metric fuses. 10x38mm.

Clif Holland KA5IPF
www.avvid.com




----- Original Message ----- 
From: "n6wk" <n6wk at skccgroup.com>
To: <kenwood at mailman.qth.net>
Sent: Sunday, October 24, 2010 1:18 PM
Subject: Re: [Kenwood] TL-922 Fuse Source 250V 15A?


> They are NOT 3AG fuses.
> I believe The TL-922 uses the 5AG type fuses which are around 3/8" in
> Diameter and about 1 1/2 " long
>
> 73,
> Gordon
> N6WK
>
>
> On 10/24/2010 11:13 AM, Bryan Swadener wrote:
>>> Does anyone have a source for the 250V 15A fuses
>>> that fit the TL-922
>>> Amp? Kenwood P/N is F05-1533-05
>>>
>>> Thanks,
>>> Paul -- N4PD
>> Hi Paul,
>>
>> They're commonly called "3AG" style fuses (an old Littelfuse type). 
>> Today, it just says 1/4" diameter x 1-1/4" length.  A few notes about 
>> fuses.  If run at 120V (transformer primaries in parallel), you can get 
>> by with glass fuses rated at 125V.  If run at 240V (transformer primaries 
>> in series), they need to be ceramic fuses rated at 250V.  If a glass fuse 
>> blows when run at 240V, there's a chance the glass can shatter, taking 
>> out the holder.  Ceramic fuses can be run at 125V.  The downside with 
>> ceramic fuses is, you can't visually tell if it has blown.
>>
>> The manual for the TL922 says it requires 120V @ 28A or 240V @ 14A. 
>> Likely, it requires no more than about 12A /while runnning at maximum 
>> power/.  However, if you don't have inrush current limiting, the fuses 
>> could see current high enough to blow them.  In that case, you'd use a 
>> slow-blow type rather than a quick-acting type.  Manfacturer part numbers 
>> would then be...
>>
>> Quick-Acting 125V:
>> Bussmann AGC15
>> Littelfuse 312-015
>>
>> Slow-Blow 125V:
>> Bussmann MDL15
>> Littelfuse 313-015
>>
>> Quick-Acting 250V:
>> Bussmann ABC15
>> Littelfuse 314-015
>>
>> Slow-Blow 250V:
>> Bussmann MDA15
>> Littelfuse 326-015
>>
>> Your local box store may (or may not) have 250V fuses.  Any electronic 
>> parts supplier (Digi-Key, Mouser, Allied, Newark, et al) will.
>>
>> vy 73,
>> Bryan WA7PRC
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