What this MCCB carries and where it fits
The Siemens SENTRON 3VA2116-6HN32-0HH0 is a 3-pole molded case circuit breaker rated for 160 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. Interrupting capacity hits 242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, and 3.7 kA at 690 V. That 242 kA figure at 240 V is the headline: it handles high available fault current at the service entrance or large distribution point without cascading upstream. The line-protection design means it's set up for feeder and main breaker duty, not motor or generator protection. Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — standard panel-mount footprint for this frame size.
Key ratings and what they mean for fit
The 160 A continuous rating is flat from 40 °C through 70 °C (–) — no thermal derating curve to calculate for most panel environments. That's unusual for an MCCB; many competitors start derating above 40 °C. The 242 kA interrupting capacity at 240 V tells you this breaker can be placed at a main lug or main breaker position where the utility transformer can deliver that level of fault current. At 690 V the interrupting capacity drops to 3.7 kA — still adequate for most 690 V distribution, but not for high-fault locations at that voltage. Power loss is 25.5 W maximum — useful for thermal budget in a sealed enclosure. The auxiliary switch configuration is 2 auxiliary switches plus 1 trip alarm switch HQ, and the auxiliary release is a shunt trip (STL). No undervoltage release and no communication function on this variant.
Panel integration notes
Mounts in a standard panel cutout for this SENTRON frame size. The 105 mm width and 86 mm depth are the critical dimensions for DIN-rail or backplate layout. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The shunt trip (STL) auxiliary release requires a separate control signal — wire it through an emergency-stop or remote-trip circuit. The trip indicator and voltage trigger are present for visual and remote status. No ground-fault monitoring version is included on this order code.