It delivers a 121 kA interrupting capacity at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V — numbers that matter for fault-clearing coordination in a distribution panel where the available fault current is known. The TM210 release means the thermal trip is fixed, not field-adjustable, so the breaker's overload response is set at the factory for line protection duty.
It starts to derate above 55 °C: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. The 17.3 W maximum power loss is manageable for a 63 A frame, but it adds up in a densely packed enclosure; leave breathing room around the vents.
The 101.6 mm width (4 inches) is standard for a 4-pole MCCB in this class — it occupies the same footprint as other SENTRON 3VA frames, so a panel laid out for a 3VA1110 or 3VA1112 will accept this unit without re-drilling the mounting plate.
Ratings and compliance context
It's a straight line-protection MCCB — no bells, no modules to lose.