The 63 A rated continuous current (Iu) holds solidly from 40 °C up to 50 °C without derating; above that it drops to 60.48 A at 55 °C and 56.7 A at 70 °C, so if the panel runs hot the breaker needs to be upsized or the load trimmed. The TM210 thermal-magnetic release gives a fixed thermal curve and magnetic trip — no interchangeable trip units, so what you see on the nameplate is what you get. Breaking capacity is where this part earns its keep: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V.
Auxiliaries and releases
The integrated auxiliary trip accessory is listed as order code 3VA9688-0BL32. No undervoltage release, no communication module, no phase-failure detection, no ground-fault monitoring — this is a line protection breaker with remote trip and status feedback. If the application needs undervoltage protection or ground-fault alarm, look at the 3VA1 series with the appropriate release modules.
The 76.2 mm width (3 inches) is the standard 3-pole MCCB footprint for this frame size — it occupies three 25.4 mm module positions on a DIN rail or a bolted panel-mount plate. Latching endurance is rated at 15,000 operations — that is mechanical life, not electrical. For a main breaker that cycles once or twice a day, that is effectively a lifetime rating.