The Siemens SENTRON 3VA2116-4HL32-0AA0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, carrying a continuous rated current of 160 A and an ETU320 electronic trip unit. Its breaking capacity hits 121 kA at 240 V, 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 3.7 kA at 690 V — meaning it can clear a fault fast enough to protect downstream gear in a high-fault-current panel, but the 690 V figure drops steeply, so confirm your system voltage against that curve. Rated current holds flat at 160 A from 40 °C through 70 °C, so no derating worry in a warm enclosure as long as you stay under the 70 °C operating max.
At 105 mm wide, 181 mm tall, and 86 mm deep, this MCCB fits a standard DIN-rail or panel-mount cutout for a 3-pole frame breaker.
Rated insulation voltage is 800 V, and maximum power loss is 25.5 W — useful for thermal calculations in a dense panel. Storage range spans -40 °C to 80 °C, and operation from -25 °C to 70 °C, so it handles cold warehouses and hot enclosures alike.
What this breaker is for
As a line-protection MCCB, it sits at the feeder or sub-feed level in a distribution panel, protecting cables and busbars from overload and short-circuit — not intended for direct motor starting (no motor-protection curve). Three poles handle three-phase systems up to 690 V, with the breaking capacity figures showing where it's strongest (240 V to 500 V) and where it drops off sharply (690 V).