The SENTRON 3VA1180-5EE32-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated 80 A continuous at 40 °C, with a breaking capacity of 187 kA at 240 V AC — that is the headline number for fault-interruption duty, and it means this breaker can safely clear a bolted fault up to that level without welding its contacts or cascading the arc upstream. The design is line protection, so it is the primary overcurrent device feeding a distribution bus or a large motor control center. Rated insulation voltage is 800 V, which covers 480/277 V and 600 V systems with headroom. The unit includes an undervoltage release (UVR) as standard — that is the auxiliary release that trips the breaker when control voltage drops below a threshold, common in emergency-stop or power-loss safety circuits. Two auxiliary switches (HQ design) are built in for status feedback to a PLC or annunciator panel.
Breaking capacity and derating
Breaking capacity drops with system voltage: 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. At 690 V the 17 kA figure is still adequate for most industrial secondary-distribution applications, but if your fault current exceeds that at the higher voltage, you need a current-limiting upstream device or a higher-rated frame. The 80 A rating holds steady from 40 °C through 50 °C; above that it derates to 78 A at 55 °C and 74 A at 70 °C — relevant if the breaker sits in a hot enclosure or near other heat sources.
Panel fit and integration
Dimensions: 130 mm height, 76.2 mm width, 70 mm depth. The 3-pole body fits standard DIN-rail or panel-mount MCCB footprints — verify the bus-bar spacing and lug centerline against your existing panel layout. The supplied basic switch is order code 3VA11805EE320AA0, which is the internal switching mechanism; the -0BC0 suffix adds the undervoltage release and auxiliary switches as a factory-assembled variant.