basement nirvana
Member
![2011-04-20 10.13.29.jpg](/data/attachments/1110/1110848-1b0bb1ee3142691dbb64b99a2b5090fa.jpg)
its rated @ 1750 watts of resistive load currentView attachment 1559985This electrical timer nearly went up in flames with a 1000W HPS on 110V. It occured 6 hours into the 12 hour cycle. Any ideas why? It is rated to 15Amps or 1750 watts and that was the only thing plugged into it. There are 2 lights and 2 timers on 2 seperate circuits so I check the heat of the plug of each at the end of the cycle the other day and this light still seemed hotter. Could it be a bad ballast? Scared to hook it up again.
I have not read any other reply's but I am 100% sure I know why it happened. You should be using a relay switch with your light and timer. You see even though the timer can take the watts, the amperes your light pull is much higher than what a domestic timer can handle. So the timer overheated with all the amperes that went through it.View attachment 1559985This electrical timer nearly went up in flames with a 1000W HPS on 110V. It occured 6 hours into the 12 hour cycle. Any ideas why? It is rated to 15Amps or 1750 watts and that was the only thing plugged into it. There are 2 lights and 2 timers on 2 seperate circuits so I check the heat of the plug of each at the end of the cycle the other day and this light still seemed hotter. Could it be a bad ballast? Scared to hook it up again.
Get a relay as per my above post, or not only will your house burn down. You will also go to jail when the fireman calls the cops on you.thats crazy because I had the same timer and same shit happened!
this is what happened. this is EXACTLY what happened. when i seen that cheap home based timer i thought "OHM"its rated @ 1750 watts of resistive load current
your ballast is pulling an inductive load
theres a BIG difference between the two.... as you just found out.
and inductive loads over 600w need to be switched by a relay rated for such, or a lighting contactor.
this is a VERY common cause of growroom fires, improper electrical rating.
always consult a pro if in doubt
to break it down REALLY simply for you Volts / Resistance = amps. on an indistrial circuit a 1000W on 120 conversion draws 9.6~ starting amps and Draws 7.5~ running amps, its 1/2 that on 240 and even less on larger stage cables. the size of the outlet dictates the resistance of the voltage, making amperage. to many amps are bad, they produce to much heat + resistance for something like that to withstand.Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points, and inversely proportional to the resistance between them.[1]
The mathematical equation that describes this relationship is:[2]
![]()