What I dont understand, why the ballast isnt fused when sold in the US. If the unit failed because of a overloaded circuit, a fuse would of prevented this. I added up total amperage of what Bigirish had on his circuit. I came up with roughly 22-24 amps with ballast startup amperage @ 10. If this was on a 20 amp breaker with the correct size wire it might never trip the breaker being the start up amperage is only for 6 seconds. If it was on a 15 amp breaker, breaker should of tripped immediately and dont believe the ballast should of fried even if it was not fused. Being that home wiring is a parallel circuit, the breaker takes the load not the equipment. If it didnt, every time you overloaded a circuit you would fry your TV or radio, appliances etc etc. They all have circuit boards of one form or another if they are updated pieces of equipment.
Went to JD's sight, they state the unit has a built in circuit breaker, I would think this should of protected any failure from outside sources. Is this what failed?
I run a quantum 600w HID, 208w T5 unit, sometimes a 1500w heater (intermittently cause of T-stat control), 3 air moving fans, 1 exhaust fan, 1 controller running 2-24v fans, 1 mag 7 pump, 1-mag 5 pump, 2-23w CFLs........on a 20 amp circuit with 12 gauge wire. No trips, no blown fuses, no warm or hot cords......... If you add up the known wattage of what I just posted, not including the items I listed with out wattage specs, amperage total is 19.5. If everything is running @ one time. Like I said, heater doest run all the time and sometimes when I'm running it, its only running @ .75kw.
I cant find anything in JD's ballast info that states start up is 10amps for 6 seconds.
On another note. I have never heard of a GE certification. I'm wondering if JD was referring to CE certification.
I really hope this gets figured out and JD updates their protection on their ballasts being that I'm in the market for a second ballast for backup purposes only.
I am not a electrician and I dont play one on TV. What I wrote above is not fact but its what I believe to be true from the limited knowledge I have.
Would love to have further communication on this matter even if its in a separate thread. Would like to know what really happened, what actually smoked in the unit..etc etc.........In my middle age I have a hunger for knowledge that I never had as a young adult or as a kid and if I'm incorrect I want to know it,,,,so I dont go on thinking my info is correct or applying wrong information to work and DIY projects.
Sorry for the ramble,,,,have a good one