Its 50 A rating at 40 °C covers branch circuits feeding motors, lighting, or general loads up to that continuous current, with no derating needed until ambient climbs above 50 °C (49 A at 55 °C, 45 A at 70 °C). The TM210 thermal-magnetic release provides fixed, non-adjustable overload and short-circuit protection — set-and-forget for a BOM line that doesn't want field-tweaked trip settings. Breaking capacity hits 52.5 kA at 240 V, 32 kA at 415 V, and still 7.5 kA at 690 V — enough for most industrial service-entrance or sub-feed positions without an upstream current-limiting fuse.
Three-pole block, 76.2 mm wide (3 in), 130 mm tall, 70 mm deep — drops onto a standard DIN rail or bolts directly into a panel backplate. Power loss is 14.6 W max — plan ventilation if grouping several units in a sealed cabinet.
What the TM210 release means for fit
Design of the overcurrent release is TM210 — a fixed thermal-magnetic trip with a 10x Ii (short-circuit pickup) multiplier. No adjustable I-trip (confirms it), so the breaker is not field-configurable for different cable or load types. If your BOM calls for a 50 A MCCB with adjustable thermal settings, this is not that part; if you need a fixed, repeatable trip curve for a standard feeder, this is exactly that part.