Electric Heating Load Rating

[mikilianis]

Hi all a unusual query landed in my inbox this morning a electric heating system is rated 6kw now it is supplied via a 3 phase supply is it 6kw per phase or as in a 3 phase motor is it total load 6 kw in other words is it 2kw per phase or6 kw per phase I asked them to check the amperage rating but agai is it collective amps or amps per phase lets have some answers
thanks
Mike

[duncan drennan]

Typically motor ratings would be for the entire motor, i.e. 6kW total power consumed (not 6kW per phase).

[Dave A]

The power rating should be for the unit on which the power rating is being given.

As an aside: this raised an interesting discussion at the office on the consequences of a phase going down i.r.o. motors vs heaters.