IBM 4331 Mainframe 3 phase converter

[Curious Marc]

Bob,

Thanks, that looks just about perfect. Solid state, true sinusoid 3 phase, 30A continuous but can do 140A for 4 seconds - seems made to power a big bunch of vacuum column tapes.

Marc

 

From: cctalk <cctalk-bounces at classiccmp.org> on behalf of "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Reply-To: Bob Rosenbloom <bobalan at sbcglobal.net>, "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Date: Wednesday, May 3, 2017 at 10:04 PM
To: "cctalk at classiccmp.org" <cctalk at classiccmp.org>
Subject: Re: IBM 4331 Mainframe 3 phase converter

 

I use a solid state one, an older version of this:

http://www.phasetechnologies.com/downloads/products/phase-perfect/pt330specs.pdf

 

Bought on ebay quite a few years ago.

 

I also have a small Phoenix rotary phase converter, also from ebay. This 

one seems to have unbalanced outputs.

I believe it is for motor loads only.

 

Bob