Greetings again, all!
I have an PCB that is being powered by a medical grade 24VDC power supply by Meanwell, specifically GSM120A-24-R7B. In short, it is a 120W, 24VDC, single output channel 5A power supply. Inside the enclolsure where the PCB is, the power circuit is tied directly to the PCB board's input. I have been told to place a fuse on the positive voltage side, inside the enclosure, in-line between the entry point of the power and the PCB. Seems simple enough, except I have several questions...
1) Why would I need a fuse inside the PCB enclosure when the poser supply is a highly efficient, darned expensive medical grade power supply?
2) Assuming the answer to question 1 is do it anyway, is there a general rule of thumb for selecting the correct fuse?
The total watts required by the PCB is 25.
Thank you in advance!
I have an PCB that is being powered by a medical grade 24VDC power supply by Meanwell, specifically GSM120A-24-R7B. In short, it is a 120W, 24VDC, single output channel 5A power supply. Inside the enclolsure where the PCB is, the power circuit is tied directly to the PCB board's input. I have been told to place a fuse on the positive voltage side, inside the enclosure, in-line between the entry point of the power and the PCB. Seems simple enough, except I have several questions...
1) Why would I need a fuse inside the PCB enclosure when the poser supply is a highly efficient, darned expensive medical grade power supply?
2) Assuming the answer to question 1 is do it anyway, is there a general rule of thumb for selecting the correct fuse?
The total watts required by the PCB is 25.
Thank you in advance!