What this MCCB delivers — and the ratings that matter
The Siemens SENTRON 3VA1116-5EF32-0AA0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, carrying a TM240 thermal-magnetic overcurrent release. Its continuous current rating holds at 160 A from 40 °C through 50 °C, then derates to 150 A at 70 °C — a thermal curve that matters when the breaker shares a warm panel with other heat sources. The interrupting ratings span the common industrial voltages: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. These figures define the fault-clearing capability at the point of installation — critical for selectivity studies and SCCR compliance on a 480 V or 690 V distribution panel. Rated insulation voltage is 800 V, and maximum power loss is 38 W. The front face carries IP40 protection, meaning it is protected against tools and small wires but not against water ingress — standard for indoor panel mounting.
Panel integration notes
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth. The 3-pole form factor fits standard MCCB panel cutouts; verify bus-bar spacing and lug centers against the existing panel layout before ordering.