[TowerTalk] UL listed protector for ladder line

[Jim W7RY]

You may want to call Polyphaser directly. They may have something. Or 
can build you something.

It will be pricey!.


Jim W7RY


On 6/13/2025 10:24 AM, Steve Jones wrote:
> 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
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