[TVARC] 220/240v Outlet (?)

Mon Feb 14 10:40:21 EST 2022

Thanks for the great feedback from several members.

Yes, having a dedicated line for an Amp was one of my primary reasons, I also have a nice battery charger with voltage auto-sense (110-240v) for my RC batteries.
My first inquiry to an Electric contractor, it seemed as if I was being quizzed on my need for a 220v outlet; that sort of seemed odd.
Our Electric for our home (I assume) was by Pike’s Electric, their label is on my breaker panel.

I’ll go ahead and get a couple quotes, my room in need is next to the garage and an exterior wall.

  Thanks!
   Stan, W5PDQ

From: tvarc-bounces at mailman.qth.net <tvarc-bounces at mailman.qth.net> On Behalf Of Larry Sheridan
Sent: Sunday, February 13, 2022 08:42 PM
To: Anthony Hackenberg <tonyhackenberg at icloud.com>
Cc: TVARC MailList at QTH.net <tvarc at mailman.qth.net>
Subject: Re: [TVARC] 220/240v Outlet (?)

Hi Stan:

I installed dedicated 110v 20A and 220V 30A circuits into my shack about a year ago.

The 110V circuit uses standard 20A 12-2 with bare ground Yellow Romex cable feeding a standard 20A duplex outlet that will accept a 110V 20A plug that has 1 horizontal blade and 1 vertical blade (standard 110V 15A outlets will only accept 15A plugs with 2 vertical blades).  This circuit is fed through a single 20A GFI breaker in the service panel.

The 220V circuit uses standard 30A 10-3 with bare ground Orange Romex cable feeding a single 20A round outlet that will accept a 220V 20A plug using straight blades instead of the industrial-type TwistLok plugs.  This circuit is fed through a double 20A GFI breaker in the service panel.  This circuit was wired with the 30A Orange Romex in case I want to upgrade it in the future with 30A GFI & outlet to handle the Henry 2K Classic floor-model amp currently in storage.

One thing to watch out for: assuming you are considering a linear amp, what power feed configuration is the amp set up for?  Some older amps are set up to run on a 2-wire 220V circuit, 2 hot wires with no white neutral wire, such as Yaesu FL2100 and Kenwood TL922.  This works fine until you want to install an option board like a soft-start-up board that runs on 110V & needs the white wire, so you really should just go ahead and set up the circuit as a 110/220 feed at whatever Amp rating you need.

The attached NEMA configuration chart may be useful, my 110V 20A circuit is a NEMA 5-20R, my present 220V 20A circuit is NEMA 14-20R and my future 220V 30A would be a 14-30R.  While I was at it, I put in a 220V 50A outlet on the garage workbench for a future welder (old habits die hard 😀 ) configured as NEMA 14-50R which is the same as the large motorhome RV's.

Hope this helps, & Best 73.

Larry Sheridan K4LES
307-630-5697

On Sun, Feb 13, 2022 at 5:38 PM Anthony Hackenberg via TVARC <tvarc at mailman.qth.net<mailto:tvarc at mailman.qth.net>> wrote:
Hi Stan/W5PDQ,

Yes, I had a dedicated 220 v line/outlet installed in my “Dream” ham shack here in The Villages.  Why?  In case I ever decide to run a high-power linear amplifier that requires power via a 220 v A/C circuit.  The same electrical contractor (Pikes Electric) that wired our house did it a year or two after we moved in.  Their crew did a great job.

Stay safe from COVID-19 😷 💉💉

73,

Tony/K4QR

On Feb 13, 2022, at 17:30, Stan Musick <W5PDQ at outlook.com<mailto:W5PDQ at outlook.com>> wrote:

Hello,

Has anyone ever had a 220v dedicated outlet installed in their ‘Dream’ Ham Shack here in The Villages?
I thought to ask, just to see if it’s worth perusing …

  Thanks,
  Stan, W5PDQ

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