The TM120M thermal-magnetic release gives you fixed thermal pickup and magnetic trip settings tuned for motor starting inrush, so it won't nuisance-trip on a 6x locked-rotor current. The interrupting ratings tell you where this breaker can be applied: 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 4.5 kA at 690 V — that's a high-fault-capacity breaker for strong utility feeds or transformer secondaries. At 200 A continuous, it carries full load without derating up to 50 °C; above that, the thermal curve steps down: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C.
Maximum power loss is 42 W at rated current — factor that into enclosure ventilation if you're packing multiple breakers in a confined panel.