SCCR and selectivity — the numbers that matter for panel coordination
What sets this breaker apart in a distribution panel is its interrupting capacity: 187 kA at 240 V AC, 121 kA at 415 V AC, 75.6 kA at 440 V AC, and 17 kA at both 500 V and 690 V AC.
Thermal derating — don't lose capacity to a hot panel
This breaker holds its full 16 A rating up to 55 °C ambient. At 60 °C it derates to 15 A, and it holds 15 A through 70 °C. That's a clean derating curve — you lose only 1 A across a 15 °C rise. For a panel running warm near the top of a switchgear lineup, you can still count on 15 A per pole without recalculating the whole bus. Maximum power loss is 10.6 W, which is modest for a 4-pole 16 A MCCB and won't drive extra ventilation in a typical enclosure.
The 100% N-conductor protection design means the neutral pole is fully rated, not just a switching neutral — important for 4-wire systems where the neutral carries load current.
Approvals and compliance documentation
As a Siemens SENTRON MCCB, this part carries IEC 60947-2 certification by design. Standard documentation includes a CE declaration of conformity and the manufacturer's device manual covering installation, coordination, and DC switching capability. For specific compliance documentation (RoHS, REACH, UL listing status), the manufacturer's Service & Support portal provides the current declarations — the device manual link is referenced in the last chapter of the 3VA molded case circuit breaker manual.