80 A MCCB for distribution panels
The G12E4A80 is a Schneider Electric GoPact MCCB 125 molded case circuit breaker rated for 80 A at 40 °C, with a 15 kA breaking capacity at 415 V AC — that's the fault current it can safely interrupt without welding contacts or cascading damage upstream. This breaker is built for distribution duty — think main or branch feeder protection in industrial panelboards, commercial switchboards, or motor control centers. The 15 kA rating at 415 V AC puts it in a solid position for most facility-level fault levels; if your site's available fault current is higher, you'll need to check coordination upstream.
If your panel runs hotter — say 50 °C inside the enclosure — you'll need to derate per the manufacturer's curve, which isn't listed here but is standard for thermal-magnetic breakers. The trip unit is TM-D, meaning fixed thermal and magnetic settings; there's no adjustment dial for the long-time or instantaneous pickup, so this is a 'set-and-forget' breaker for straightforward feeder protection. If you need selectivity (keeping upstream breakers closed while a downstream fault clears), you'd step up to a Category B breaker with a short-time delay. The grey RAL 7035 housing is the standard industrial color, matching most Schneider switchboard lines. Screw terminals on both front connections accept copper or aluminum conductors; the 25 mm connection pitch gives you room for lugging.