The Siemens SENTRON 3VA2110-8HL46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, built around the ETU320 electronic trip unit. It's designed for line protection in distribution panels where you need adjustable overload and short-circuit protection with a fixed ground-fault monitoring option — this variant ships without ground-fault monitoring. The 100 A rating holds flat across the full ambient temperature range from 40 °C to 70 °C (–), so no derating curve to chase in a warm enclosure.
Short-circuit ratings and what they mean for panel coordination
The interrupting capacity on this MCCB is the standout number: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. Those are SCCR values for the breaker itself — meaning it can safely clear a fault up to those levels without welding contacts or rupturing the case. In a 480 V panel, 330 kA gives you headroom to coordinate with a transformer secondary or a high-capacity bus. The 800 V rated insulation voltage confirms it's built for 690 V line-to-line systems common in heavy industrial.
Panel fit and integration
Physical footprint: 181 mm height, 140 mm width, 86 mm depth. That's a standard 4-pole MCCB form factor for DIN-rail or panel-mount installation. The front face carries IP40 protection — fine for a dry indoor enclosure, but not rated for washdown or outdoor exposure. Power loss at rated current is 7.7 W maximum, negligible for thermal budgeting in a typical distribution panel. No undervoltage release, no communication module, no voltage trigger on this variant — it's a straight thermal-magnetic replacement with electronic trip adjustment via the ETU320.