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Re: [Amps] HL-2K

To: Robert Groh <rgroh@swbell.net>
Subject: Re: [Amps] HL-2K
From: Kevin LaHaie <klahaie@centricata.com>
Date: Thu, 27 Aug 2009 22:48:11 -0700
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I have an HL-1K from THP, and the power cord is only 2 conductors.  The 
manual gives wiring schemes for 100v, 110v, 117/120v, 200v,220v, and 
234/240v.

Only the 2 leads are illustrated (obviously a hot / neutral for 
100-120v, 2 hots for 240v).  It shows no ground OR neutral connections 
to the wiring terminals.

So I am also curious to see what is recommended to wire one of these 
early THP amps for single phase 240v if putting the green (neutral) wire 
to the chassis is a no-no. (obviously I had planned to put a 3 wire cord 
on this amp, perhaps now it will need a 4 wire?)

73 Kevin K7ZS

Robert Groh wrote:
> No, no, never connect the neutral to any ground (e.g. the case, the grounding 
> conductor in the 4-wire line, etc)!
>
> That is a violation of the electrical code and dangerous on top of it.  I 
> can't tell you what use the HL-2K uses - hopefully someone can give the 
> answer on what you do with the neutral connection.  The neutral (in 
> combination with 1 of the hot wires) is used to give you a 120VAC power 
> connection (for relays, small power supplies, fans, whatever).
>
> 73
> Bob, WA2CKY
>
>   
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