The Schneider Electric G12F4F50 is a GoPact MCCB 125 moulded-case circuit breaker rated 50 A at 40 °C with a 30 kA breaking capacity at 415 V AC, 50/60 Hz. This is a Category A breaker (no intentional short-time delay), suited for distribution duty in panelboards and switchboards where you need straightforward, reliable overcurrent protection without coordination complexity.
For a 50 A feeder in a 415 V distribution panel, that gives solid headroom against typical utility fault levels — most industrial services sit well below 30 kA. The TM-D trip unit has fixed thermal and magnetic settings — no adjustment dials — so what you see on the label is what you get. That keeps the BOM simple but means selectivity with downstream breakers must be checked by the I²t curves, not by tweaking the trip.
The toggle handle gives clear visual indication of tripped vs. ON/OFF status.
The grey (RAL 7035) colour is standard across the GoPact MCCB range.