mlagrone
New member
- Location
- Danvile CA
I have approx. 125 100watt HPS fixtures on a 225 amp 480 volt 3-phase breaker. I am switching a lighting control panel via a contactor. I have about a 145 amp draw across all 3 phases all looks to be normal, however every few days the main sub-feed breaker trips (225 amp 3pole I line breaker...) Someware I have read that the HPS ballasts can draw 20-50X the rated current depending on where it is on the sign wave? has any one heard of this? If this is correct I will need to install a 400amp breaker to prevent this tripping to occur. any advise?
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