I have a circuit with 30 computer fans and a DC power supply and they seem to turn on and run well.
The fans take 12V and their rated current is 0.18A. My power supply is 12V 5A.
By my math, this would give each fan actually only about 0.16A, not the 0.18A they are rated for. But when I measure it, it's only about 0.13A per fan in practice
So theoretically the fans should be trying to use more current than the power supply can provide (5.4A total vs 5A) but in practice it seems like they are only using 3.9A. Is this safe?
Wondering why my fans are turning on and seeming to run normally with less current than they're marked for?
Sorry if this is missing key info and or dumb, I'm new to hardware!