The C60HC16R30 is a C60H-series residual-current circuit breaker with overcurrent protection (RCBO), combining a 16 A thermal-magnetic MCB and a 30 mA earth-leakage module in a single 1P+N unit. It carries a C-curve magnetic trip of 5–10 × In, so it handles moderate inrush from motorised or capacitive loads without nuisance tripping, and its 10 kA breaking capacity at 50–250 V AC (IEC 1009) means it can safely interrupt a bolted fault up to that level — provided the upstream device coordinates. The earth-leakage protection is instantaneous, Class AC, suited for sinusoidal residual currents in distribution final circuits.
The neutral is on the right. The positive-break indication gives a visible gap on the toggle when the contacts are open — useful during lockout/tagout.