The Siemens SENTRON 3VA2116-5HN32-0AL0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed as panel temperature rises. That 160 A is the same at every point in that span, so the breaker delivers its full ampacity even in a crowded enclosure with elevated internal heat. Interrupting capacity is the headline number for an MCCB: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. At typical 400 V class distribution voltages this breaker handles 121 kA of prospective fault current — enough for most main or feeder positions in industrial switchgear without requiring a current-limiting upstream device. It includes a trip indicator for quick fault identification during troubleshooting.
Maximum power loss is 25.5 W — a figure to check against the enclosure thermal budget, especially in multi-breaker panels.
The basic switch assembly is order code 3VA21165HN320AA0 — relevant if a replacement mechanism is needed without replacing the entire breaker.