It carries 100 A continuously at 40 °C with no derating up to 50 °C, then drops to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C, so the thermal curve is flat across typical panel ambient temperatures. The interrupting ratings are substantial: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 7.5 kA at both 500 V and 690 V — that 220 kA figure at 240 V means it can handle high-fault utility feeds without cascading upstream. The overcurrent release is the TM120M type, a thermal-magnetic unit with a 120 A frame and the 100 A continuous setting.
Sizing and deployment context
This MCCB mounts on a DIN rail or panel-mount base — the 70 mm depth, 76.2 mm width, and 130 mm height fit standard SENTRON 3VA1 footprint, so it drops into existing 3VA panel layouts without re-drilling. Maximum power loss is 25 W, which matters for thermal calculations in sealed enclosures. The 3 poles handle three-phase motor circuits; the trip indicator is absent, so a visual flag won't show a tripped state. Voltage trigger is present, which allows remote shunt-trip capability if wired to a control signal.