A Forum run by Enthusiasts of MidNite Solar

General Category => System Design and Layout => Topic started by: eastpoint turbine on October 09, 2015, 11:38:55 AM

Title: Max amps for classic 150
Post by: eastpoint turbine on October 09, 2015, 11:38:55 AM
 To all. What is the max amperage  the classic 150 can safely work with,  Today i recorded 90.1 amps into a 24volt batt bank and the panel voltage was 77.1  ( 12   250w  24v     4 strings of 3 panels) 
  Jason
Title: Re: Max amps for classic 150
Post by: Westbranch on October 09, 2015, 12:33:08 PM
see table1  in the manual, 94A 2700W
Title: Re: Max amps for classic 150
Post by: eastpoint turbine on October 09, 2015, 04:38:21 PM
 Thanks   wb,   i do not feel comfortable with such a high  amp and wattage for the controller  as it was running rather " warm" i guess i should remove 1 string  to another controller  "the kid"  and let the classic work a bit cooler
Jason
Title: Re: Max amps for classic 150
Post by: Westbranch on October 09, 2015, 06:07:37 PM
yes, that array is pushing it a bit heavy, it's easier on the electronics to stay below 75 - 80%. Don't forget about edge of cloud events either...
Title: Re: Max amps for classic 150
Post by: zoneblue on October 10, 2015, 08:06:30 PM
On the other hand, unless you have an aggressive oppurtunity load situation, how long actually will a controller run at peak amps like that. Not long, generally youre into absorb before you know it. Also the controller has its own thermal limiting, so will throttle as needed to protect itself.