What this MCCB carries — and what it doesn't
The Siemens SENTRON 3VA2216-8HL42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 160 A continuous current across the full operating temperature range from -40 °C to 70 °C — no derating needed up to the 70 °C ceiling. That 160 A holds steady at every 5 °C step from 40 °C through 70 °C, so it's a straight pick for a warm panel or a hot environment without recalculating the load. Breaking capacity hits 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V — numbers that put this squarely in the high-fault category for industrial switchboards and transformer secondaries where available fault current is serious. The ETU320 electronic trip unit handles the overcurrent release, with adjustable long-time delay (tr) from 0.5 to 17 seconds, and the N-conductor protection can be set to OFF, 50%, or 100% of the phase current. Front IP40 protection means it's fine in a clean indoor panel but not for washdown zones. No communication module, no ground-fault monitoring — this is a straight line-protection breaker, not a metering or remote-trip variant. Rated insulation voltage is 800 V, so it's comfortable on 690 V systems with margin.
Panel fit and footprint
Dimensions are 181 mm high, 140 mm wide, 86 mm deep. That 86 mm depth is the key number for enclosure depth planning — it's shallow enough for most 200 mm deep cabinets but check your gland-plate clearance if the breaker sits near the back wall. The 140 mm width for a 4-pole frame is standard for this class; it'll occupy four 35 mm DIN spaces if mounted on a rail, though the SENTRON 3VA series typically bolts to a mounting plate in switchboard builds.