What this MCCB delivers
It carries a continuous current of 40 A at 40 °C, derating to 37 A at 70 °C — the thermal curve is linear across that band, so no surprise drop at the top end. Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, and 11.9 kA at 690 V. That 75.6 kA figure at 240 V means it can interrupt a fault of that magnitude without upstream fuses needing to clear — useful for high-fault panels fed close to a transformer.
The 3VA1140-3EF36-0JH0 carries a higher continuous current (40 A vs the 3VA1110's rating) and different breaking capacities — verify the specific interrupting rating your coordination study requires before swapping.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard MCCB footprint that fits most DIN-rail or panel-mount enclosures without adapter plates. The 3-pole form factor matches typical 3-phase feeder or branch circuits. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.