What this MCCB delivers
The Siemens 3VA2216-6HN32-0AJ0 is a SENTRON molded case circuit breaker rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That 160 A holds at every 5 °C step, so the rating is the same at 40 °C as it is at 70 °C. Breaking capacity reaches 242 kA at 240 V, stepping down to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V. The 3-pole design is configured for line protection, meaning it's sized to protect feeder circuits and distribution buswork, not motor loads with inrush curves.
Panel fit and auxiliary wiring
The breaker measures 105 mm wide by 181 mm tall by 86 mm deep — a standard SENTRON 3VA2 frame footprint that drops into existing panel layouts without re-drilling the mounting plate. It ships with 2 auxiliary switches plus 1 trip alarm switch (HP type), so you get position feedback and a separate fault signal without adding external relay logic. No undervoltage release or ground-fault module is fitted; those are add-on options if the spec demands them.
Operating limits and thermal handling
Operating temperature spans -25 °C to 70 °C; storage range goes from -40 °C to 80 °C. Maximum power loss is 19.7 W — useful to know for enclosure heat calculations when the breaker is fully loaded. The trip indicator is present, so a visual check confirms the breaker has opened on fault without needing to reset the handle.