What the 160 A rating and interrupting capacity mean for your panel
The 3VA2116-6HN32-0BA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current at 40 °C, with no derating needed up to 50 °C — above that it steps down to 154 A at 55 °C and 136 A at 70 °C, so the thermal curve matters if your enclosure runs hot. The interrupting capacity hits 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 5 kA at 690 V, which covers most industrial fault-current scenarios up to the low-voltage switchgear boundary. The ETU350 electronic trip unit gives you adjustable long-time, short-time, and instantaneous protection curves — not a fixed thermal-magnetic, so coordination studies actually have something to work with.
Integration and mounting constraints
Three-pole design, dimensions 105 mm wide by 181 mm high by 86 mm deep (-). The 86 mm depth is the dimension that usually bites you in shallow backpanels — verify your enclosure depth before committing the BOM line. No auxiliary contacts are integrated, and the undervoltage release (UVR) is built in, so if your safety circuit expects a shunt trip instead, you'll need a different variant or an add-on module. The base switch is order code 3VA2116-6HN32-0AA0; the integrated auxiliary trip is 3VA9608-0BB11.
Operating environment and electrical ratings
Rated insulation voltage Ui is 800 V, which matches typical 690 V system designs with margin. Operating temperature range -25 °C to 70 °C; storage range -40 °C to 80 °C. Maximum power dissipation is 28 W — factor that into your enclosure thermal budget if you're packing multiple breakers in a small cabinet. Latching endurance rated at 20,000 operations.