In the past in Australia we needed to place a contactor before the drive because you couldn't use electronics to isolate the motor and it wouldn't be classed as off without the contactor. Whats the UK regulations or standard?
2006-11-09 21:18:54 · 2 answers · asked by Aussie_Matt 1 in Science & Mathematics ➔ Engineering
In the UK you need an isolator, not a contactor. It should be lockable. The point is that you can isolate the VF drive from its supply if you needed to open it up or work on it.
2006-11-10 12:27:17 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The NEC in the States has the same requirement for the same reason. I would be surprised, indeed, if the UK had a less rigid standard. (I don't know about UK codes, just wanted to mention this point of agreement between US and Australian codes.)
2006-11-10 05:30:39 · answer #2 · answered by Helmut 7 · 0⤊ 0⤋