Help sizing breaker for 3 phase trash compactor

[Adam308]

Hi, I'm having a bit of trouble determining how to size the breaker for a 34.5kW heated trash compactor (3ph 480V).

Is it as simple as (34.5kW / 1.732) *1.25 ? This gets me 52A

Thank you

 

[augie47]

Unless there is a motor involved, that should be fine.
(Note: Don't know about your jurisdiction but with only the "C-E" marking the equipment would not pass inspection under some area rules)

 

[Adam308]

Thanks! I didn't know about the C-E marking. This is in Hayward California

 

[augie47]

There are folks here from CA. They can advise.

 

[WA_Sparky]

Hi, I'm having a bit of trouble determining how to size the breaker for a 34.5kW heated trash compactor (3ph 480V).

Is it as simple as (34.5kW / 1.732) *1.25 ? This gets me 52A

Thank you

View attachment 2556953

You didnt show division by Voltage but yeah you got it.

 

[Little Bill]

Would the 125% even apply as it's probably not considered a continuous load?
If not, then a 45 or 50A breaker would work.

 

[Adam308]

Thanks for the replies!

 

[augie47]

Would the 125% even apply as it's probably not considered a continuous load?
If not, then a 45 or 50A breaker would work.

Since nol control panel was mentioned it might be presumptuous but I figured the 125% might apply due to Art 409.

 

[Greentagger]

CE- Can’t Energize

 

[texie]

That label would not cut it for US listed equipment. Leaves a lot of guessing to be made. As mentioned, that equipment would not be allowed in many jurisdictions due to the listing issue.

 

[tom baker]

In the US, CE means nothing. My state does not accept CE, as its not an NRTL recognized testing lab....but we do have a allowance for 3rd party engineer to approve. For the OP, conract ETL or UL to get a field evalution...$$$

 

[Dennis Alwon]

It is also hard to know if the 34.5 amps is the total power or is that the motor and the heater is added to it-- ~=44 amps

 

[Dennis Alwon]

Does the machine use 2 circuits?