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Does anyone know the maximum rated amps for the fan headers inside the MPP Solar 2424LV-MSD?

MilkMan

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I'm going to install my 2424 in a smaller area than is recommended. To increase venting I would like to externally install 2 120 mm PC fans in the compartment. The 2 fans inside the 2424 are model number EFC-08E12D-EF05 which are 12V 0.40A each. I would like to add a splitter to each fan header or a 1-to-3 splitter to power the 2 external fans. Ideally, this will result in the fans only running when the 2424 fans are running.
 

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Only the manufacturer can answer.

However what you can do is use a small relay with its coil controlled by the 12 V for the fans of the 2424 and its contacts controlling whatever fans you want powered with an external power supply ;)
 
Only the manufacturer can answer.

However what you can do is use a small relay with its coil controlled by the 12 V for the fans of the 2424 and its contacts controlling whatever fans you want powered with an external power supply ;)
That may be the next best route.

I've also been investigating replacing the 2424 fans if I can find a better alternative. Has anyone learned the CFM or dba of the stock fans? The Bgears b-PWM and Delta seem to be the quietest with highest CFM. Assuming I can trust their numbers...

80x25 mm 12v 0.40a 78 CFM 37 dba 4000 RPM - Bgears b-PWM
80x25 mm 12v 0.34a 62 CFM 39 dba 3500 RPM - Bgears b-Blaster
80x25 mm 12v 0.65a 65 CFM 40 dba 5000 RPM - Foxconn PVA080G12Q -F03-AE
80x15 mm 12v 0.40a 70 CFM 40 dba 5000 RPM - Delta AFB0812SHB
80x25 mm 12v 0.35a 59 CFM 43 dba 4500 RPM - GDSTIME
80x25 mm 12v 0.55a 70 CFM 50 dba 5000 RPM - ADDA AD0812XB-A73GL
80x25 mm 12v 0.65a 65 CFM 65 dba 6000 RPM - Foxconn PVA080G12Q -P01-AD

The stock fans (12v 0.60a) start at boot around 55 dba and sit at 45 dba with no load. My ambient room dba was around 28 dba.
 
Last edited:
I'm going to install my 2424 in a smaller area than is recommended. To increase venting I would like to externally install 2 120 mm PC fans in the compartment. The 2 fans inside the 2424 are model number EFC-08E12D-EF05 which are 12V 0.40A each. I would like to add a splitter to each fan header or a 1-to-3 splitter to power the 2 external fans. Ideally, this will result in the fans only running when the 2424 fans are running.
Are you planning on running it without the case?
 
Here are the specifications for the fans:
Excellent, thank you!
Are you planning on running it without the case?
No, the case will remain installed. My installation is in a small compartment below the dinette seating. It's too small without ventilation. I haven't decided on the my plan yet. I'm considering an inlet fan on the right side of the picture and an outlet fan on the bottom side of the picture. This matches the MPP Solar's in/out direction. I may start with vents only and monitor the temperature before installing fans. My battery is 120 ah at 24v so I cannot pull high loads for very long. Both my AC and microwave pull around 60 amps and I'll never run them at the same time. Until I increase my battery capacity I won't use the AC much at all.
 
Is it true that the 2424 fans never turn off?
There was a thread here complaining about that.
 
Is it true that the 2424 fans never turn off?
There was a thread here complaining about that.
From what I've seen so far the only time the fans are off is when the charger and inverter are off. The unit shuts down with little to no drain. If you're plugged into the grid the charger will stay on float and the fans will keep running. I don't have solar yet so I don't know how the solar charge controller will affect the fans.

So basically, if you're using the setup, it'll always run the fans.
 
I have a 1012 and the fans only run when it gets warm/hot, which does occur when charging, or under moderate loads. I suspect that having the controller with the inverter in a small space will in fact make a nice bread/foot warmer, under the dinette.
 
I have been running my inverter for about 5 hours, only charging my laptop and phone, and the fans have not come on...disclaimer. temp 60 deg f. in the cabin.
 
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