What this MCCB is and where it fits
The Siemens SENTRON 3VA2116-5HL32-0AF0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current, designed for line protection in distribution panels. It carries a 187 kA interrupting rating at 240 V AC and 121 kA at 415/440 V, giving you serious fault-current headroom for high-capacity switchboards or transformer secondaries. The 105 mm width and 86 mm depth mean it slots into standard SENTRON mounting footprints without re-spacing the busbars.
Breaking capacity — what the numbers mean for your panel
This breaker's short-circuit capacity drops as system voltage climbs: 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The 690 V figure is low enough that you need to verify the available fault current at that voltage level — it's not a high-fault 690 V breaker. At 415 V, 121 kA covers most industrial service-entrance and large motor-control-center applications in North American and European 400 V class systems.
Thermal performance and power loss
Rated continuous current holds steady at 160 A across the full 40 °C to 70 °C ambient range — no derating needed in a warm enclosure. Maximum power loss is 25.5 W, which matters for heat buildup in a densely packed panel. If you're stacking several of these in a row, factor that dissipation into your ventilation or forced-air calculation.