What it is and where it lands
The Siemens SENTRON 3VA1080-4ED32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for 80 A continuous current. It carries a TM210 thermal-magnetic overcurrent release — no voltage trigger, no undervoltage release, no ground-fault module. The interrupting ratings climb to 121 kA at 240 V and 75.6 kA at 415 V, tapering to 11.9 kA at 690 V. Four auxiliary switches (HQ type) are built in, so you get status feedback without adding a separate accessory block. Front protection is IP40 — fine for a clean indoor panel, not for washdown.
What the ratings mean for fit
The 80 A rating holds flat from 40 °C through 50 °C — no derating needed in a warm panel. At 55 °C it still carries 76.8 A, and at 70 °C it's 72 A. That thermal curve means you can size it for an 80 A feeder in a ventilated enclosure and still have headroom if ambient climbs. The TM210 release is fixed (non-adjustable thermal and magnetic), so what you see is what you get — no dials to mis-set on site. Interrupting capacity at 415 V (75.6 kA) covers most European industrial service-entrance and sub-distribution boards. At 690 V the rating drops to 11.9 kA — still enough for many motor-control-center bus faults, but verify against your transformer impedance and cable length. The 3-pole frame fits standard DIN-rail or screw-mount panel layouts; depth is 70 mm, width 76.2 mm, height 130 mm.