The Siemens Betagard 5SL4316-0RC is a 3-pole miniature circuit breaker rated 16 A at AC with a Z tripping characteristic and a 10 kA breaking capacity per both IEC 60898 and IEC 60947-2. The Z-curve means the magnetic trip operates between 2.5 and 5 times In — designed for semiconductor and electronic load protection where standard B- or C-curves would nuisance-trip on inrush. Rated operating voltage is 415 V AC, with a maximum of 440 V in multi-phase operation.
Thermal derating and ambient range
The 16 A rating holds at 50 °C ambient; at 60 °C it derates to 15 A, and at 30 °C it carries 17.9 A.
Installation depth behind the panel is 70 mm. Touch protection is integrated, and the unit is sealable for tamper-evident applications.