Siemens 3VA2440-7HL32-0DC0 SENTRON MCCB — 400 A, 3-pole line protection with UVR
The Siemens 3VA2440-7HL32-0DC0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 400 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to the 70 °C operating limit. Breaking capacity is 330 kA at 240 V, dropping to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V. The 4800 A maximum rating and 600 A minimum define the adjustable trip band — this breaker is sized for high-fault industrial mains or large feeder circuits, not branch protection. The basic switch is order code 3VA2440-7HL32-0AA0.
Dimensions are 248 mm height, 138 mm width, 110 mm depth — a standard 3-pole MCCB footprint for SENTRON 3VA2 frames. Maximum power loss is 66 W — account for that heat in the panel thermal budget, especially when grouping multiple breakers.