Where this class of connector is used
The 1720420601: Wire-to-board power distribution in industrial automation, motor drives, and power supplies is the primary habitat for a 7.50 mm pitch header rated at 30 A. The combination of high current per circuit, 600 V capability, and through-hole retention makes it suited for PCB-side power entry points where the harness carries mains voltage or high-current DC rails to the board. The single-row layout means it stacks a 6-circuit bus in a linear footprint rather than a dual-row array — useful when board z-height is constrained but lateral routing density is not the limiting factor.