Motor-protection MCCB with full-current flat rating and 330 kA interrupt at 240 V
The Siemens SENTRON 3VA2216-7MN32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated 160 A continuously from 40 °C through 70 °C — no derating needed across that band, which simplifies panel build and saves a line-item check on the BOM. Its interrupting capacity hits 330 kA at 240 V and stays at 242 kA through 440 V, then drops to 187 kA at 500 V and 4.5 kA at 690 V. This is a motor-protection design, meaning the trip curve and thermal memory are tuned for motor starting inrush — it will hold through a 6× to 8× FLA start and still clear a locked-rotor fault fast. The breaker ships with the basic switch variant 3VA2216-7MN32-0AA0 and is configured with four HQ auxiliary switches.
It mounts via screw-clamp lugs; no DIN-rail adapter is used at this frame size.
Operating conditions and power loss
Short-time delay is adjustable between 4 s and 17 s for selective coordination downstream.