[Elecraft] Need a Fuse on the K3's Power Line?

[Ron D'Eau Claire]

There's also a separate 6A fuse protecting the rest of the K3. Anything in
the power cable is strictly redundant. I don't use one.

73, Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of iain macdonnell -
N6ML
Sent: Thursday, June 13, 2013 6:17 PM
To: mteberle at mchsi.com
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] Need a Fuse on the K3's Power Line?

I believe that the circuit breaker only protects the KPA3.

If you're running off battery, or other unprotected power-source, I think
you would really want an external fuse (as close to the power source as
possible, in case you get a short in the supply cable somehow).

73,

    ~iain / N6ML


On Thu, Jun 13, 2013 at 6:06 PM, Michael Eberle <mteberle at mchsi.com> wrote:
> Yes, that is a circuit breaker on the K3 so a fuse probably is not 
> necessary.  Of course there would certainly be nothing wrong with 
> using a fuse.
>
> Mike
> KI0HA
>
>
> On 6/13/2013 7:46 PM, PGrig wrote:
>>
>> I was just looking at my new K3's (#7489) power cable, and see that 
>> it is not protected by a fuse (although I think I saw an instruction 
>> to use an in-line fuse if I connect it to battery power).
>>
>> I see what looks like a 20a fuse (or breaker) on the back of my 
>> K3/100, although I believe I read that it draws 25a  continuous duty.
>>
>> I was thinking of connecting my radio either directly to a 70a Astron
p.s.
>> (which will also handle my 50w 2m mobile rig and a variety of other 
>> smaller
>> loads) or through a 25a fused receptacle on a RigRunner, itself 
>> connected to the Astron.
>>
>> To fuse or not to fuse--that is the question, and what is peoples'
>> experience with the RigRunner?
>>
>>     -Paul Grigorieff, N1HEL
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