What this MCCB carries and where it fits
The Siemens 3VA2116-5HL32-0BL0 is a SENTRON molded case circuit breaker rated 160 A continuous across the full 40–70 °C ambient range — no derating needed up to that ceiling. Three poles, line-protection design, with a 187 kA interrupting capacity at 240 V and 121 kA at 415 V. That kind of headroom means it handles high-fault utility feeds without cascading upstream; the 3.7 kA at 690 V still covers most industrial motor-circuit fault levels. It ships with an undervoltage release (UVR) built in, plus two auxiliary switches, a trip alarm switch, and an electrical alarm switch — that's a full complement for remote status monitoring without adding accessory modules. The UVR drops the breaker on loss of control voltage, which is standard for emergency-stop chains and safety circuits where you want a guaranteed open on power loss. Panel footprint is 105 mm wide by 181 mm tall by 86 mm deep — a standard 3-pole MCCB slot. Max power dissipation is 28 W, so thermal budgeting in a sealed enclosure is manageable with basic ventilation.
What the interrupting ratings mean for coordination
The 187 kA at 240 V and 121 kA at 415 V put this breaker in the high-interrupting category for a 160 A frame. That matters when you're coordinating with downstream feeders: you can place it close to a transformer secondary without worrying about let-through exceeding its rating. The 75.6 kA at 500 V and 3.7 kA at 690 V cover the less common higher-voltage industrial feeds — most panel designs won't push fault current that high at those voltages, but the rating is there if the utility impedance is low. Compared to a sibling like the 3VA2116-5HL32-0AK0, the -0BL0 carries the same 160 A frame and 3-pole count but adds the full auxiliary switch package and UVR. If your BOM already has those as separate add-ons, the -0AK0 saves panel space; if you need them integrated, this -0BL0 is the cleaner pick — one line item, one wiring harness.