I'm having a bit trouble to understand what cable size to select to the UL508A standard.
It is a UL508A electrical cabinet with an input of 400V or 480V AC with 50 or 60 Hz to a frequency driver from allen-bradley.
The marking plate on the driver states 20.6A input and the manual says 22A continuous output. Seems strange to me that the output is more than the input. However what I understand is the 20.6A shall be multiplied the 1.25x which are about 26A, with that value I shall select a cable in the table 28.1 which shows me wire size AWG 10 for 30A copper wire at 75 degree Celsius. The table doesn't provide me any information for wires that are certified to 90 degree Celsius. Is there any updated table or a other table that I can use for UL508A? Seems to be quite big wire for caring 26A.
Ok now for the motor side. The motor have a FLA of 14.6A and continuous stall current of 20.6A.
Shall I calculate that cable for 14.6A or 20.6A times (1.25x)?
It is a UL508A electrical cabinet with an input of 400V or 480V AC with 50 or 60 Hz to a frequency driver from allen-bradley.
The marking plate on the driver states 20.6A input and the manual says 22A continuous output. Seems strange to me that the output is more than the input. However what I understand is the 20.6A shall be multiplied the 1.25x which are about 26A, with that value I shall select a cable in the table 28.1 which shows me wire size AWG 10 for 30A copper wire at 75 degree Celsius. The table doesn't provide me any information for wires that are certified to 90 degree Celsius. Is there any updated table or a other table that I can use for UL508A? Seems to be quite big wire for caring 26A.
Ok now for the motor side. The motor have a FLA of 14.6A and continuous stall current of 20.6A.
Shall I calculate that cable for 14.6A or 20.6A times (1.25x)?
