MCCB for motor starter protection — 100 A continuous, 220 kA interrupting at 240 V
Rated 100 A continuous at ambient temperatures up to 50 °C without derating; above that it steps down to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C — so if the panel runs hot, the usable current drops, and that derated figure is what governs the motor full-load amp selection. Breaking capacity varies sharply with system voltage: 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.
Built-in undervoltage release and auxiliary switch complement
It also carries two factory-fitted auxiliary switches (HQ design) for remote status indication — one normally-open and one normally-closed contact per switch, giving four signal paths total to the PLC or panel indicator. The basic switch core is order code 3VA11106MH360AA0 — useful to know if you ever need to order the bare switch assembly separately for a repair rather than replacing the whole breaker.
Dimensions are 130 mm height, 76.2 mm width (3 inches — standard MCCB footprint for a 3-pole frame), and 70 mm depth. The width matches the common 3-inch-per-pole spacing, so it drops into existing SENTRON mounting bases without panel modification.