D-curve trip and what it means for the panel
The MGN60522: The D-curve magnetic trip fires at 12 x In ±20 %, meaning the instantaneous trip threshold for this 10 A breaker is nominally 120 A. For audit purposes, the magnetic tripping limit is per the datasheet: 12 x In ±20 %. The utilisation category is Category A per EN/IEC 60947-2, which means it is not intended for current-limiting performance under short-circuit conditions — the breaker clears the fault but does not restrict the let-through energy to the degree a Category B (current-limiting) device would. This matters when coordinating with downstream equipment.
The 2-pole footprint occupies 4 x 9 mm pitches (36 mm wide), 81 mm tall, 73 mm deep. Pollution degree 3 per EN/IEC 60947-2 — suitable for industrial environments where conductive pollution may occur.
