What this MCCB is and what it does
The Siemens SENTRON 3VA1180-4ED46-0AA0 is a 4-pole molded case circuit breaker (MCCB) designed for line protection in industrial distribution panels. It carries an 80 A continuous rating at 40 °C ambient, with a thermal-magnetic TM210 overcurrent release that handles both overload and short-circuit conditions without external trip units. Breaking capacity is the headline spec here: 121 kA at 240 VAC, 75.6 kA at 415 VAC, and still 11.9 kA at 690 VAC. That means it can safely interrupt fault currents up to those levels without upstream cascading — critical for high-fault panels near large transformers or motor control centers. Rated insulation voltage is 800 V. Front face IP40 protection.
Panel fit and thermal derating
Dimensions: 130 mm height, 101.6 mm width, 70 mm depth. Thermal derating is published across the ambient range: full 80 A up to 50 °C, then 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. If your panel runs hot — say near a drive or transformer — factor that 6 A drop at 70 °C into your load calculation. Maximum power loss is 19.2 W, which is modest for an 80 A frame. No forced ventilation needed in a typical enclosure, but account for it in your thermal budget if the panel is densely packed.
What the TM210 release means for coordination
The TM210 designation means a thermal-magnetic release with fixed settings — no interchangeable trip units, no electronic adjustments. The thermal element handles overloads (inverse time curve), and the magnetic element handles short-circuits (instantaneous). For selectivity studies, you'll need the manufacturer's time-current curve; the fixed nature simplifies coordination but limits flexibility if downstream loads change.