The MGN60510 is a C60N miniature circuit breaker from the Multi9 range, rated 6 A at 50 °C with a D tripping curve. The 10 kA Icu at 240 V AC (phase-to-neutral) is the maximum fault current it can safely interrupt; the Ics service breaking capacity is 7.5 kA (75 % of Icu) at the same voltage, which tells you it can reclose after a fault at that level.
The 73 mm depth leaves clearance for standard enclosure depths. The toggle gives local ON/OFF indication and the contact position indicator confirms isolation status, which is useful during panel commissioning.
