What this MCCB delivers for the panel
The Siemens SENTRON 3VA2116-5HN32-0AJ0 is a 3-pole molded case circuit breaker rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed as the panel warms up. Breaking capacity hits 187 kA at 240 V and 121 kA at 415 V, so it handles high-fault utility feeds without cascading upstream. Rated insulation voltage is 800 V, giving headroom for 480 V and 600 V class systems. It carries two auxiliary switches plus a separate trip alarm switch, so you get both status feedback and a dedicated fault signal without adding an external module. The trip indicator is built in — visible flag on the front tells you at a glance whether it tripped on overload or short circuit.
DIN-rail footprint and panel fit
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep. That 86 mm depth matters when you're laying out a shallow enclosure — it clears most standard gland plates and leaves room for rear-mounted busbars. The width is a standard 105 mm frame size for this current class, so it occupies the same panel real estate as other 160 A SENTRON MCCBs.