Key ratings and what they mean for fit
The Siemens SENTRON 3VM1180-5EE32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a TM220 thermal-magnetic overcurrent release. The TM220 designation means the thermal trip is fixed at 80 A and the magnetic short-circuit pickup is adjustable — typically 5–10x In, so roughly 400–800 A instantaneous. That 80 A rating holds flat from 40 °C through 50 °C, then derates gradually to 74 A at 70 °C, giving you a usable thermal budget in warm enclosures. Breaking capacity is the headline number here: 187 kA at 240 V AC, 121 kA at 415 V AC, 76 kA at 440 V AC, and 17 kA at 500 V AC. At 415 V, that 121 kA SCCR means it safely interrupts a fault up to that level without cascading upstream — critical for high-capacity distribution panels or transformer secondaries. The 800 V rated insulation voltage (Ui) confirms the internal clearance is sized for 690 V AC systems. Rated operational voltage is 690 V AC; DC rated voltage maxes at 500 V. For DC applications, consult the 3VA manual for switching capacity derating — the evidence flags that the DC values are not listed here. IP40 on the front means the breaker face is protected against tools and small wires (≥1 mm), but not sealed against moisture — keep it in a dry enclosure.
Integration into a panel
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep. That 3-inch (76.2 mm) width is standard for a 3-pole MCCB this class — fits a 3-module DIN-rail footprint or a bolted bus connection. Panel builders: the 19 W maximum power loss at full load means you need some ventilation if the breaker is in a sealed compartment with other heat sources. No trip indicator, no undervoltage release, no communication module, no ground-fault monitoring. This is a plain line-protection breaker — the TM220 release handles overload and short-circuit only. If you need shunt trip, UVR, or auxiliary contacts, those are external accessories (not included here).