The Siemens 3VA1180-5EF36-0HA0 is a SENTRON 3VA1 molded case circuit breaker (MCCB) rated for 80 A continuous at 40 °C, with a 187 kA interrupting capacity at 240 V AC — that SCCR means it can clear a fault up to 187 kA without rupturing, making it suitable for high-fault-current industrial panels where upstream coordination demands a robust interrupting rating.
Interrupting ratings across voltage levels
The interrupting capacity drops as voltage rises: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. This curve is typical for MCCBs with a fixed trip — the magnetic break point is tuned for the lower-voltage, higher-fault-current scenario common in 240 V industrial distribution. At 690 V, the 17 kA rating still covers most motor-control-center bus faults.
Thermal derating and continuous current
Rated 80 A continuous at 40 °C through 50 °C ambient; above that, derate linearly to 74 A at 70 °C. The frame holds 80 A solidly in a 40 °C panel — no need to oversize for a warm enclosure unless ambient exceeds 50 °C. Power loss is 19.2 W maximum at rated load, which matters for heat buildup in a crowded panel.
The 3VA1180-5EF36-0HA0 measures 130 mm high, 76.2 mm wide (3 inches), and 70 mm deep. That 3-inch width per pole is standard for 160 A frame MCCBs — it fits the same mounting footprint as other 3VA1 3-pole units, so a panel designed for a 3VA1110 or 3VA1010 will accept this breaker without drilling new holes or changing bus bars.