Does a machine that has terminal blocks wired upstream of a MCCB to allow flexibility of connection in the field have a SCCR equal to that of the terminals?
As you know, terminals have a 5kA or 10kA rating at best if unprotected.
The reason for that arrangement is to have flexibility to connect the unit from underneath and avoid contractors passing the cables inside and potentially create some damage doing so. Those “upstream” terminals are enclosed in a compartment accessible from the outside of the unit, and, if needed and as mentioned above, are factory connected to the MCCB.
I wonder if they have to be considered as in the same “panel” as my other components for the SCCR. But still, they are part of the whole enclosure.
Thanks for your inputs.
As you know, terminals have a 5kA or 10kA rating at best if unprotected.
The reason for that arrangement is to have flexibility to connect the unit from underneath and avoid contractors passing the cables inside and potentially create some damage doing so. Those “upstream” terminals are enclosed in a compartment accessible from the outside of the unit, and, if needed and as mentioned above, are factory connected to the MCCB.
I wonder if they have to be considered as in the same “panel” as my other components for the SCCR. But still, they are part of the whole enclosure.
Thanks for your inputs.
