2000A 3P 4W 120/208V Panel

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Alwayslearningelec

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Could this type of panel have fused switches or would it more than likely be circuit brekaers?
BTW it's for temporary loads. Thanks.
 
Some of the guys here who are familiar with gear sales could give you a better idea but I'd say fusible feeder/branch devices unlikely, fusible main more likely if it's older gear.
 
For 2000 amps I think that you would likely use fused disconnects. What size are the loads?
 
Depends on what you want to do. I would say these days you would just use circuit breakers 99% of the time unless you had some very specific applications where fuses would be advantageous. One case where you might want fuses would be if you needed to series rate with different brands of downstream circuit breakers.
 
electrofelon said:
At 2000 amp it would be a switchboard not a panelboard, and you could get pretty much whatever type of OCPD you want.
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I agree. You mostly don't find panelboards that accept "miniature breakers" (like QO style) over 600 maybe 800 amps.

You mostly don't find panelboards that accept 250- 600 amp frame type breakers (like I-Line style) over 1200 amps.
 
kwired said:
I agree. You mostly don't find panelboards that accept "miniature breakers" (like QO style) over 600 maybe 800 amps.

You mostly don't find panelboards that accept 250- 600 amp frame type breakers (like I-Line style) over 1200 amps.
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Panelboards only go up to 1200 amps per their product standard. I use 1000 and 1200 quite frequently.

I worked on a job where there was a 1000 amp panelboard filled with 100A two pole miniatures.
 
zbang said:
I'm a little confused here-
Temporary loads but temp or permanently-installed switchboard?
Is this a one-use deal or will you be swapping loads around? (That might affect the fuse/CB discussion.)
What's the application?
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Sounds like it a temporary switchboard for a renovation job that will be used for temp power and later removed.
 
Could be either, however the main or any branch 1200A and larger would most likely be a breaker due to the 2020 NEC requirement for an Arc Flash Maintenance switch. The AMS could be applied to a fused OCP, but it would require an electrically operated bolted pressure contact switch with additional relaying. Below 1200A you could specify either type OCPD, but if left up to mfg. preference they would most likely offer breakers unless you specifically asked for fused switches. Keep in mind that breakers require less mounting space and may result in a smaller o all footprint depending on the number and size of OCPD’s required.
 
kwired said:
I agree. You mostly don't find panelboards that accept "miniature breakers" (like QO style) over 600 maybe 800 amps.

You mostly don't find panelboards that accept 250- 600 amp frame type breakers (like I-Line style) over 1200 amps.
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The ILines have combination switchboards with two vertical rows. The left side is the switchboard and accepts the bigger breakers. The right side is a panel board and accepts the smaller ones. The whole thing is rated as a switchboard. Really unless you are specifying and ordering equipment the switchboard is so similar looking to the panel board it’s not obvious there is a difference.

This is unlike Siemens switchboards that are clearly a different animal.

Price wise these two are usually the best priced and what I see a lot of.
 
paulengr said:
The ILines have combination switchboards with two vertical rows. The left side is the switchboard and accepts the bigger breakers. The right side is a panel board and accepts the smaller ones. The whole thing is rated as a switchboard. Really unless you are specifying and ordering equipment the switchboard is so similar looking to the panel board it’s not obvious there is a difference.

This is unlike Siemens switchboards that are clearly a different animal.

Price wise these two are usually the best priced and what I see a lot of.
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Guess it probably comes down to listing standards. Not sure if a panelboard can have more than one set of buses or not, and that could be a factor. Typically that arrangement is still with only one set of supply conductors and the second bus is fed from a breaker on the first bus.

These appear in the panelboard section in the catalog if that means anything.
 
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