SENTRON 3VA2 MCCB with undervoltage release — 160 A, 3-pole
The Siemens SENTRON 3VA2216-7MN32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous across the full ambient range of 40 °C to 70 °C — no derating needed up to that ceiling. Interrupting capacity hits 330 kA at 240 V AC, stepping down to 242 kA at 415/440 V, 187 kA at 500 V, and 4.5 kA at 690 V.
The 86 mm depth leaves clearance behind the gland plate for wiring bends. Maximum power dissipation is 22.2 W, so adjacent device derating in a sealed enclosure should account for that heat load.
Protection and release configuration
Designed for motor protection with phase-failure detection built in. Trip indicator is not present, so visual status comes from the handle position only. Short-time delay is adjustable between 4 s minimum and 17 s maximum for selective coordination downstream.