Siemens 3VA2216-5MN32-0AC0 — 160 A SENTRON MCCB for Motor Protection
The Siemens 3VA2216-5MN32-0AC0 is a SENTRON molded case circuit breaker (MCCB) rated 160 A continuous, built for motor protection duty. Three poles, with phase failure detection integrated and two high-performance auxiliary switches (HQ type) for status feedback to the PLC or safety relay. Breaking capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V and 440 V, dropping to 75.6 kA at 500 V, and 4.5 kA at 690 V. That 187 kA at 240 V means it handles extreme fault currents on the low-voltage side of a distribution transformer — essential for high-fault panels feeding motor control centers. The 4.5 kA at 690 V is a reminder that at higher voltages the arc extinction is harder; this breaker is optimized for 400–480 V class systems, not 690 V main feeders. Rated insulation voltage is 800 V, so it's comfortable on 690 V line-to-line systems with margin. The 160 A rating holds flat from 40 °C through 70 °C — no derating curve to worry about in a warm panel. Max power loss at rated current is 19.7 W, manageable for enclosure thermal calculations. Mounts on a DIN rail or panel-mount base in the standard SENTRON 3VA footprint: 105 mm wide, 181 mm tall, 86 mm deep. The 86 mm depth is shallow enough for 200 mm deep enclosures, leaving room for wiring gutters. No undervoltage release, no communication module, no ground-fault monitoring — this is a straight motor-protection breaker with auxiliary contacts for status.