Say that I have a 12VDC 2A rated solenoid, but I test the lowest voltage that my solenoid operates reliably for my specific application. Could I just operate the solenoid at this lower voltage to extend the life of the coils?
This question came up because I received a 12VDC (2A) solenoid valve before receiving the power supply, so I tested it with a lower rated power supply and read 8VDC and 1.7A during operation. Then I installed the 12V supply and during operation it reads 11V 2A (what it's rated for).
But that got me thinking, this solenoid gets really hot. Wouldn't it be happier operating it at a lower voltage if it works just fine?