Electronics > Beginners
How to wire up a 240VAC receptacle
Bratster:
You can't just change the plug out on the pdu that you have, you would have to completely change out all of the breakers and switching elements in side of it. Because it has to provide protection on both lines, not just one.
Changing the plug was talked about way back when everybody thought you had some mystery load.
A power distribution unit cannot be treated the same as a load, because it provides switching and protection.
As far as the multiple pdus goes you should have both of them running at the same time fed from different circuits obviously.
And then all of your servers that have redundant power supplies hook up one power supply plug into pdu number one and the other power supply plugged into pdu number two.
That way even if 1 pdu goes down completely your servers will still be running off the other pdu, as opposed to everything shutting down and you having to manually move things over.
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IanB:
--- Quote from: Spork Schivago on May 20, 2018, 06:26:35 pm ---There are reasons we need this PDU that I'd rather not go into. Originally, we wanted a switched AND metered one, but HPE said they didn't make one that would work with our power supply.
--- End quote ---
If HPE say that, they are saying they don't have a model that works in North America. That seems unlikely.
--- Quote ---I'm wondering though, now that we know they make mistakes, do any of you guys see a Switched AND metered horizontal 2U PDU that will work with my 120-0-120 split phase?
--- End quote ---
You don't have a 120-0-120 split phase supply. You have a 240 V single phase supply.
Any PDU designed for the North American market that handles a 200-240 V AC single phase supply will work in your situation.
Bratster:
240v single phase North American.
That last bit is important when you're looking for stuff so you don't find something like you already have that's intended for Europe.
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Spork Schivago:
--- Quote from: Bratster on May 20, 2018, 06:34:21 pm ---You can't just change the plug out on the pdu that you have, you would have to completely change out all of the breakers and switching elements in side of it. Because it has to provide protection on both lines, not just one.
Changing the plug was talked about way back when everybody thought you had some mystery load.
A power distribution unit cannot be treated the same as a load, because it provides switching and protection.
--- End quote ---
Yes, we are aware of this. If it comes down to it though, we have some people on another forum, a real nice one, that are very knowledgeable and can help us modify it. We are in fact discussing it there now, preparing, in case we do need to modify the PDU. Trying to find the breakers that are used now, the proper breakers that will work, etc. We can come close by physically matching the pics, but in the end, we'd need to crack her open and void the warranty to be certain. And there's no sense doing that if we can send it back.
--- Quote from: Bratster on May 20, 2018, 06:34:21 pm ---As far as the multiple pdus goes you should have both of them running at the same time fed from different circuits obviously.
And then all of your servers that have redundant power supplies hook up one power supply plug into pdu number one and the other power supply plugged into pdu number two.
That way even if 1 pdu goes down completely your servers will still be running off the other pdu, as opposed to everything shutting down and you having to manually move things over.
Sent from my Moto x4 using Tapatalk
--- End quote ---
I wasn't thinking like that, but that's a great idea and we'll do that. Our servers, and the switch all have redundant PSUs. The rest doesn't. The servers and switch are important though, out of most of the equipment.
Spork Schivago:
--- Quote from: IanB on May 20, 2018, 06:37:02 pm ---
--- Quote from: Spork Schivago on May 20, 2018, 06:26:35 pm ---There are reasons we need this PDU that I'd rather not go into. Originally, we wanted a switched AND metered one, but HPE said they didn't make one that would work with our power supply.
--- End quote ---
If HPE say that, they are saying they don't have a model that works in North America. That seems unlikely.
--- Quote ---I'm wondering though, now that we know they make mistakes, do any of you guys see a Switched AND metered horizontal 2U PDU that will work with my 120-0-120 split phase?
--- End quote ---
You don't have a 120-0-120 split phase supply. You have a 240 V single phase supply.
Any PDU designed for the North American market that handles a 200-240 V AC single phase supply will work in your situation.
--- End quote ---
Would you like to help me try and find a Switched and Metered one that can handle a similar load or higher than the P9S13A's I was going to purchase? The G2 series. I don't think it was just a 3-phase thing, I think another issue was they were vertical and they didn't make one for our 36-unit one. I really want to stick with the horizontal one, but if it came down to it, I would go for a vertical one, so long as it was for a 36-unit rack, not smaller. If it gave us the Switched and Metered functionality, I'd be okay. I couldn't just now, but I still haven't finished looking. I was looking here:
https://www.hpe.com/us/en/product-catalog/servers/power-distribution-units/pip.models.power-distribution-units.1009830118.html
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