It is a panel-mount device intended for distribution and motor branch-circuit protection in industrial switchgear and control panels.
What the key rating means for fit
The 125 A frame and TMA trip unit mean this MCCB is sized for feeder or large motor circuits where adjustable thermal and magnetic settings are needed to coordinate with downstream protection. The XT2H series is the high-breaking-capacity variant of the XT2 platform, suited for installations with higher prospective fault current — typically 36 kA or 50 kA at 415 VAC, though the exact interrupting rating for this order code should be verified against the nameplate for the specific application.