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Old August 11th, 2017, 05:57 PM   #11
BobB
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Australia

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Join Date: Jun 2002
Location: Sydney
Posts: 4,254
Zener for me - locally made in Sydney. I do lots of swimming pool work and they have to run on 30ma RCDs - not many can do that without cutting out the filters to ground. I have up to 75kW drives running on standard AB type 30ma RCDs without issue at all. They are also IP66 and can be mounted at the motor without the fear of someone giving them a hose down. The cooling fans are IP66 as well. If one does fail it is repaired the same day.
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