What this MCCB is and what the ratings mean
The Siemens 3VA1180-5ED16-0AA0 is a 1-pole SENTRON molded case circuit breaker (MCCB) rated for line protection. Its continuous current Iu is 80 A, and the TM210 thermal-magnetic release provides LI protection — meaning it handles overload (thermal) and short-circuit (magnetic) faults. The magnetic trip is fixed at 800 A (li), so it clears hard faults fast without adjustment. At 240 V the interrupting capacity is 121 kA; at 415 V it drops to 9 kA — the 415 V figure governs most European industrial panels, so verify your available fault current against that number. The breaker is 25.4 mm wide (1 inch) — a single-pole module that snaps onto a DIN rail, fitting standard 18 mm per-pole spacing. Depth is 70 mm, height 130 mm. The front face carries IP40 protection, adequate for enclosed panel mounting where tools or fingers won't contact live parts.
Thermal derating and operating range
The 80 A rating holds at 45 °C and 50 °C. Above that, derate linearly: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, 74 A at 70 °C. If your panel ambient runs above 50 °C, size the breaker for the derated value — the TM210 release responds to actual heating, so a 74 A continuous load in a 70 °C enclosure is within spec. Maximum power loss is 6.4 W, which matters for thermal budgeting in a dense panel. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The storage limit governs handling and warehousing, not running conditions. Insulation voltage Ui is 500 V, and the maximum DC operating voltage is 125 V — so it can be used in DC branch circuits up to that voltage, but the interrupting ratings listed are AC.
Panel integration and mounting
Snap-on DIN rail mounting per EN 60715. The 25.4 mm width occupies one 18 mm pole pitch — standard for single-pole MCCBs. No auxiliary contacts are fitted (0 CO contacts), and no motor drive or communication module is included. The breaker is a standalone line-protection device; if you need remote tripping or status feedback, you'll add an external shunt trip or auxiliary switch separately.