To use breakers or not?

[cambridgecnc]

Hi I am building a control box for a new machine which is 48 x 72 . The power supplies are (3) 300 watt (68 vdc) and (1) 300 watt (42 vdc) leadshine and the motors are 6 amps bipolar. Should I have breakers on each circuit. The drivers and power supplies have built in over and under current protection. I could put them in no problem but I notice many setups dont use them. I was going to have a breaker on the 24 volt transformer which powers the control board.

Thanks for any help!

[MrWild]

Some drives (gecko) tell you not to fuse the drive itself, while others (probotix) tell you to do so. I'd follow the manufacturer's advice for the drives you go with.

[cambridgecnc]

Oh Ok thanks..I will contact the manufacturer as the documentation doesn't say. They are the Kellig type drivers.