The key spec for a sourcing decision is the interrupting capacity: 121 kA at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V. That means it handles high-fault scenarios at lower voltages but derates significantly above 500 V, where it holds at 11.9 kA.
That's high enough for most secondary distribution boards fed from a transformer. The thermal derating is mild: it holds 63 A up to 50 °C, then drops to 62 A at 55 °C, 61 A at 60 °C, and 58 A at 70 °C.
The undervoltage release is built in, so no auxiliary module needed for that function. The TM210 release is thermal-magnetic, fixed-trip, no electronic adjustment — set it and forget it.