What this MCCB delivers on the line side
This SENTRON 3VA1180-4ED22-0AA0 is a 2-pole molded case circuit breaker built for line protection, meaning it sits at the incoming feed to protect the entire downstream panel, not a single branch. The TM210 thermal-magnetic trip unit gives you fixed thermal and magnetic settings — no field adjustment, no configuration risk, just install and trust the curve. Rated 80 A continuous at 40 °C, it holds that same 80 A all the way up to 50 °C ambient; above that it starts a gentle derate — 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, 74 A at 70 °C. That thermal headroom matters if this breaker lives in a hot enclosure next to other heat sources.
Breaking capacity — what it clears
At 240 V AC this breaker interrupts 121 kA; at 415 V AC it still clears 75.6 kA. Those are serious fault-current ratings — it handles high-available-fault panels without needing a current-limiting fuse upstream. Rated insulation voltage is 500 V, so it's comfortable on 480 V systems within its pole count. For DC applications, rated operating voltage is 250 V DC; the manufacturer notes that switching power values in DC networks require consulting the 3VA device manual for specific coordination.
Footprint and panel fit
It takes up 50.8 mm width on the DIN rail or panel-mount footprint — that's two standard 25 mm module slots. Depth is 70 mm, height 130 mm. IP40 on the front means it's protected against tools and wires >1 mm, but not against water ingress; keep it inside a rated enclosure. No undervoltage release, no ground-fault monitoring, no communication module on this variant — it's a straight thermal-magnetic line protection breaker, no frills.