Industrial control system power supply Why is the choice of DC24V power supply? Why not 17V? 11V?
This is a series of standards in the power of the standard, which is a long time after the practice summed up and set the standard,
regardless Is 2V lead-acid battery or commonly used 1.2V, 1.5V, 3V battery are good combination. With a series of standards to be in a timely interchangeable thing.
which take into account a number of factors, the first is a safe voltage, the body does not produce electric shock Dangerous, the second can be regarded as a relatively high safety voltage, can reduce the current in the same power, and then 24 is a multiples of the majority, set the standard, of course, to consider and a variety of batteries are also concerned,
