Need help wiring up 240VAC.

[Spork Schivago]

Re: Need help wiring up 240VAC.

I'll read the articles first thing tomorrow morning, i'm going to bed. For me to read in the AM though, if I have the chance to send the PDU back and purchase a couple of the American versions (that provide less KVA per PDU), would you recommend I do that over modifying the existing one?

I'll go over the NEC rules a bit more, you can grab them for free off the government's website (or maybe it's a .org one?), I can provide the address if you want it.

Throwing in the double pole breaker in my pain, replacing the internal signal pole breakers with double pole breakers, and then wiring up the receptacle Stj linked to isn't all there is to modifying this PDU? Lot more to it? I was afraid of that.

[budm]

Re: Need help wiring up 240VAC.

Pure Thermal breaker will require derating based on ambient temperature, the higher the Ambient the less current it can handle. I doubt that HP will put in pure thermal breakers, they are thermal-magnetic has better derating than the pure thermal breaker.
You want 16A, not 20A on that PDU to maintain the same protection.
There is also more thing to consider for the replacement breakers, more likely to be made for high in-rush type, not fast tripping, the only way to find out is to look at the label on the existing breaker.

Your house panel breaker: you should consult your electrician and NEC rules.
It is not that simpe.
https://cdn.badcaps-static.com/pdfs/...459c54c49b.pdf

https://cdn.badcaps-static.com/pdfs/...4eacafa4c8.pdf
https://www.mikeholt.com/mojonewsarc...s~20030621.htm

Thermal-Magnetic breaker:
https://thegrid.rexel.com/en-us/prod...tic-protection

[Spork Schivago]

Re: Need help wiring up 240VAC.

"Keep in mind, the value shown is derated, so the American two-pole version should show 20-amp, not 16-amp." That is correct for those IEC outlets, the large (IEC-320-C19) one is rated 20A US, 16A Euro, the smaller (IEC-320-C13) 15a us RATED, 10A Euro rated.
Hmm, I cannot tell if they are magnetic or thermal breakers type.
The breaker itself rating is real 16A. I spec in 16A for the products with IEC-320-C19.
I use Carling in most the products since they can custom made for us in our application.
Your looks to be Carling B series Rocker actuator:
http://www.carlingtech.com/hm-cb-b-series

Holy cow! How did you find them so quickly?? You are amazing! Are you saying I'm correct in the sense that the double-pole ones I'd want would say 20A and not 16A on them?

How could I tell if they're magnetic or thermal? Would there be any tests I can perform without opening them to test?

Finally, do you think it very well might be possible to just switch out the 16A single poles for the correct double-poles? Which worries me is they don't make this 7.3KVA PDU for North America. They make ones half the size, but not this large. I wonder if I'm missing something more than just the breakers and receptacle....I purchased the double pole 40-amp breakers, but I might need 50-amp double-pole (for the mains panel).

The 7.3KVA appears that it might be derated as well, and that the PDU, according to one of the documents I found, supports up to 10KVA. With a power factor of .99, we're looking at ~42 amps (10,000 / 240). Not that I'd necessarily be having a power factor of .99, I just want to make sure I'm safe and don't do anything wrong here. Because their plug is showing a derated value of 32A, I think 40 amp is just right. What do you think?

[budm]

Re: Need help wiring up 240VAC.

"Keep in mind, the value shown is derated, so the American two-pole version should show 20-amp, not 16-amp." That is correct for those IEC outlets, the large (IEC-320-C19) one is rated 20A US, 16A Euro, the smaller (IEC-320-C13) 15a us RATED, 10A Euro rated.
Hmm, I cannot tell if they are magnetic or thermal breakers type.
The breaker itself rating is real 16A. I spec in 16A for the products with IEC-320-C19.
I use Carling in most the products since they can custom made for us in our application.
Your looks SIMILAR to Carling B series or J Rocker actuator:
http://www.carlingtech.com/hm-cb-b-series
http://www.carlingtech.com/hm-cb-j-series

[Spork Schivago]

Re: Need help wiring up 240VAC.

Hrmm, for some reason, they're sideways. That's not the way I took them. Sorry about that.

[Spork Schivago]

Re: Need help wiring up 240VAC.

These three pictures of are the L1 top row (for the back of the PDU, there's two rows, a top row called L1, a bottom row called L2). There's two breakers, one called L1, one called L2. This is just one of the two breakers.

Keep in mind, the value shown is derated, so the American two-pole version should show 20-amp, not 16-amp.

I can provide measurements with my caliper as well, if need be. There's two screws / bolts per breaker. I was looking at E-T-A and although they have one that's close, because it doesn't have the screw holes, I think we can rule E-T-A out as a manufacturer.

[Spork Schivago]

Re: Need help wiring up 240VAC.

Can I see good clear pictures of your PDU? I like to see what the two 16A breakers look like from outside.

Yes sir. I will show you them tripped and not tripped. It's a type of rocker switch, but is flush (doesn't look like a rocker) until you trip it. I will go take the pictures now for you.

[budm]

Re: Need help wiring up 240VAC.

Can I see good clear pictures of your PDU? I like to see what the two 16A breakers look like from outside.

[Spork Schivago]

Re: Need help wiring up 240VAC.

^ And the distribution panel doesn't already do this?

What do you mean the distribution panel? My breaker panel? Yes, that should trip, but might not. The internal ones are 16 Amp each (derated, so essentially the 20 amp). Its a 7.3KVA PDU. I think we determined we needed double pole to 30 AMP breaker, maybe 40

[Spork Schivago]

Re: Need help wiring up 240VAC.

"I wired one of the 1400 watt PSUs up to one of my NEMA L6-30P's and plugged it in. Fired right up." I am NOT surprised that it works, the PSU is connected to L1 and L2, the center tab of you house wiring is not being used for your 240V load so as far as the power supply (or 240V) is concerned it is seeing incoming 240V and that is all it cares, but since you are using L1 AND L2 from your panel then you need dual breakers so if one of the L1 or L2 is shorted to GND it will pop both breakers (they are mechanical linked).
That PDU you have should have been equipped with dual breakers to begin with but they are able to get away with it by specified the incoming as 1-phase only.
All the products I designed for export (TuV is compliance tester) are spec in with dual breaker, and double pole switch due to the fact that some products have harmonized Schuko plug/receptacle which can be connected in either directions.

Yes, I think the problem was I was too technical when asking their supposed tech support the questions. I think they heard split phase, didn't know what I was talking about or just references the datasheet and said no. The only way it might matter is if I had the psu hooked to an "intelligent" PDU. For each PSU, there's not just three prongs for input, but also four PCB pads that communicate with intelligent PDUs that HPE sell. I like the PDU and like the idea of just wiring the European connector to my double pole breaker, but the internal breakers inside, as you mentioned are single pole, which is why we need the one phase 240VAC. How hard do you think it'd be able to source the double pole breakers and install them, if it's even possible. Granted, warranty would be over with I'd imagine, but would that be doable do you think? I can't crack it open to take a look unless they say I cannot send it back...but if it's as easy as just buying the proper breakers and soldering them in or wiring them up, I think I might rather do that.

[goontron]

Re: Need help wiring up 240VAC.

^ And the distribution panel doesn't already do this?

[budm]

Re: Need help wiring up 240VAC.

"I wired one of the 1400 watt PSUs up to one of my NEMA L6-30P's and plugged it in. Fired right up." I am NOT surprised that it works, the PSU is connected to L1 and L2, the center tab of you house wiring is not being used for your 240V load so as far as the power supply (or any 240V Loads) is concerned it is seeing incoming 240V and that is all it cares, but since you are using L1 AND L2 from your panel then you need dual breakers so if one of the L1 or L2 is shorted to GND it will pop both breakers (they are mechanical linked).
That PDU you have should have been equipped with dual breakers to begin with but they are able to get away with it by specified the incoming as 1-phase only.
All the products I designed for export (TuV is compliance tester) are spec in with dual breaker, and double pole switch due to the fact that some products have harmonized Schuko plug/receptacle which can be connected in either directions.

[Spork Schivago]

Re: Need help wiring up 240VAC.

If they cannot accept the return because I installed it, it might be worth it to open up the PDU and try to install the double pole breakers. I don't know how easy that will be

[Spork Schivago]

Re: Need help wiring up 240VAC.

It'll be 240VAC in reference to L1 and L2 so the load will be the same on L1 and L2.

[stj]

Re: Need help wiring up 240VAC.

keep in mind at 120v you need to try to keep the load on the 2 lines pretty balanced.
if not it's anybody's guess what your electric meter will think!

[Spork Schivago]

Re: Need help wiring up 240VAC.

240V:240V transformer wiring.
You must consult your electricians as how the GND must be done plust other requirements to meet the code.

Wow, thank you. You are truly an amazing person Budm. I'm almost tempted to just keep the PDU I have and buy the transformer because you went through all that work. Personally, I like this PDU with the connector on it. I've never been big on the NEMA L6-30R's and NEMA L6-30P's, especially the twist-and-locks. Maybe it's because I've been buying them at Home Depot and Lowes and I can get higher quality ones somewheres else? But they always feel real chinsee to me. Even when I plug in the plug and twist it, it always feels like something is going to break off.

[Spork Schivago]

Re: Need help wiring up 240VAC.

I ran a test. Despite what the HPE techs said, some of the people on EEVBlog where correct. I wired one of the 1400 watt PSUs up to one of my NEMA L6-30P's and plugged it in. Fired right up.

Even though I've installed the PDU, we still have the original box and packing material (which must be kept if we're not sending it back for warranty purposes). I'm hoping I can use the HPE techs said the PSUs wouldn't work with the American 120-0-120V split-phase as leverage if they give me any shit about sending it back.

But I'm going to attempt to do what Per Hansson said and send that bitch back and purchase a couple of the P9S13As.

[budm]

Re: Need help wiring up 240VAC.

240V:240V transformer wiring.
You must consult your electricians as how the GND must be done plust other requirements to meet the code.

[stj]

Re: Need help wiring up 240VAC.

same connector.
2P+E simply means 2 poles(contacts) + Earth.
it's a physical description, not an electrical one.

[Spork Schivago]

Re: Need help wiring up 240VAC.

Also, with that connector Stj, seeing how I'm probably going for the transformer, do I still use the same connector, the 2P+E? Once I have true 1-phase 240VAC, would I need a different connector? I don't think so, because the plug itself says 2P+E, and the PDU is made for 1-phase 240VAC, not 120-0-120 split-phase.

If anyone has any ideas how I tie into that transformer, please let me know, or if they can provide feedback on the idea of adding a subpanel, where the transformer is in between my mains panel, and the subpanel, please let me know. Everyone's seemed to have gone quiet. That scares me!