The Siemens 3VA1180-5ED46-0AA0 is a SENTRON 3VA1 molded case circuit breaker (MCCB) rated 80 A continuous, in a 4-pole configuration with a TM210 thermal-magnetic release. It's designed for line protection — the primary overcurrent guard in a distribution panel, not a motor-protective device. The TM210 release gives you fixed thermal and magnetic trip settings, so it's a straight swap-in for standard feeder protection without adjustment.
Breaking capacity: what the numbers mean for your panel
This MCCB carries interrupting ratings of 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. Those are the maximum fault currents it can safely clear at each voltage level — critical for verifying SCCR compliance on the panel nameplate. If your available fault current at the board is, say, 100 kA at 415 V, this breaker has 21 kA of headroom. The 17 kA rating at 500 V and 690 V is the same figure, so at higher voltages the limitation is the same.
Current rating vs. ambient temperature
The 80 A rating holds flat from 40 °C up to 50 °C. Above that, it derates: 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 a non-ventilated enclosure near a furnace line — you need to account for that 6 A drop at the top end. The breaker itself is rated for operation from -25 °C to 70 °C, storage from -40 °C to 80 °C.
Fit and panel integration
Dimensions are 70 mm deep, 101.6 mm wide, 130 mm tall. That's a 4-inch wide footprint — standard for a 4-pole MCCB in this class. IP40 on the front means it's protected against tools and wires >1 mm, but not against water ingress; keep it inside the enclosure. The 19.2 W max power loss matters for thermal budgeting inside a sealed cabinet — add it to your total dissipation calc.
