What this MCCB carries — and what it means for your panel
The Siemens 3VA2116-6HL32-0DL0 is a SENTRON molded case circuit breaker rated for 160 A continuous current (Iu) across a 40 °C to 50 °C ambient — no derating needed in that band. At 55 °C it still holds 154 A, and at 70 °C it delivers 136 A, so it handles warm enclosures without a frame size jump. Breaking capacity hits 242 kA at 240 V and 187 kA at 415/440 V — that puts it in the high-fault tier for industrial mains, meaning it can interrupt a bolted fault at the service entrance without upstream fuses needing to clear first. Three poles, line protection version, with an ETU320 electronic trip unit. It ships with an undervoltage release (UVR) fitted — the release is a 3VA9608-0BB25 — and a full auxiliary contact block: 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ type). That covers status feedback and shunt-trip monitoring without adding a separate accessory.
Panel fit and integration
Dimensions are 181 mm high × 105 mm wide × 86 mm deep — a standard 3-pole MCCB footprint for 160 A frames. It mounts on a DIN rail or directly to a backplate via the screw terminals. The 86 mm depth leaves room for rear-connected busbars or a cable duct behind the breaker. Power loss is 28 W maximum at rated current — factor that into enclosure thermal rise if the panel is sealed or has limited ventilation.
Environmental and compliance range
Operating temperature spans -25 °C to 70 °C; storage range is -40 °C to 80 °C. The 80 °C storage max means it can sit in a hot warehouse or shipping container without degrading the trip unit.