[TowerTalk] UL listed protector for ladder line

[Steve Jones]

Here's what Google's AI says:  Specifically, UL Standards address:

    Antenna Discharge Units: UL 452 covers these units, also known as lightning protectors or surge arresters, designed to protect radio equipment from surges caused by lightning.

73,
Steve
N6SJ


-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Chris Perri
Sent: Friday, June 13, 2025 7:54 AM
Cc: Tower and HF antenna construction topics. <towertalk at contesting.com>
Subject: Re: [TowerTalk] UL listed protector for ladder line

Morgan products are not UL listed.  Some of Polyphaser’s products are; I have no idea if they have a balanced line arrestor.  I’ve never seen one.

Chris
KF7P


> On Jun 13, 2025, at 8:21 AM, Robie Elms <ruler55 at gmail.com> wrote:
> 
> Martin,
> 
> Here's a link to Morgan's open wire line arrester # 309
> 
> https://www.surgestop.com/coaxial-arrestors/m-309.html
> 
> I do not know if this is a "listed" product per the NEC.  Please let 
> us know what you find out.
> 
> Robie AJ4F
> 
> On Fri, Jun 13, 2025 at 8:33 AM john simmons 
> <jasimmons at pinewooddata.com>
> wrote:
> 
>> Would it fly to use two UL-listed coaxial lightning protectors? I 
>> doubt you'll find what you are looking for.
>> 
>> -John
>> On 6/13/2025 5:54 AM, Martin A Flynn wrote:
>> 
>> Have a situation where a UL listed protector is required on a ladder 
>> line feeder.
>> 
>> I’m striking out in my search
>> 
>> Any suggestions?
>> 
>> 73 Martin
>> 
>> W2RWJ
>> _______________________________________________
>> 
>> 
>> 
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com<mailto:TowerTalk at contesting.com>
>> http://lists.contesting.com/mailman/listinfo/towertalk
>> 
>> _______________________________________________
>> 
>> 
>> 
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>> 
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk


_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk