The Siemens 3VA4180-6ED34-1AA0 is a SENTRON 3VA4 molded-case circuit breaker (MCCB) rated for 80 A continuous at 40 °C, with a TM210 thermal-magnetic overcurrent release. For a maintenance tech swapping one into an existing panel, the dimensions are 75.1 mm deep, 76.2 mm wide, and 129.4 mm tall — standard 3-pole MCCB footprint that fits most DIN-rail or bolt-on mounting schemes.
At 55 °C it drops to 78 A, at 60 °C to 77 A, and at 65 °C to 75 A. That thermal curve means a 80 A feeder in a 50 °C panel room still runs at full rating; you only start losing headroom above that. It's a workhorse design for fixed-load applications like lighting panels, small motor control centers, or feeder circuits where you don't need field-adjustable settings. The breaker carries a maximum power loss of 16.5 W, so plan for some heat rejection in a tightly packed enclosure. Front-side IP40 protection keeps out tools and fingers but isn't sealed against hose-down — this is an indoor panel breaker, not a washdown unit.
The UL file designation is HEAM, covering UL 489 listing for molded-case circuit breakers. The product designation per UL is "Molded-case circuit breaker". For IEC installations, the breaker is rated for 690 VAC operating voltage. RoHS and REACH compliance documentation is available through the Siemens support portal — standard for any current-production SENTRON component.