That 100 A holds steady at 45, 50, 55, 60, 65, and 70 °C, so it's a solid choice for a warm enclosure or a panel sitting next to a heat source. Breaking capacity hits 242 kA at 240 V, drops to 187 kA at 415 V and 440 V, then 121 kA at 500 V, and 3.7 kA at 690 V. An undervoltage release (UVR) is fitted, so the breaker will trip if control voltage drops below the release threshold, which is useful for emergency-stop chains or undervoltage protection schemes.
The 86 mm depth leaves room for rear-connection busbars or a cable-entry gland plate without pushing the enclosure door out.
Environmental and operating limits
No ground-fault monitoring version is fitted; this is a plain line-protection MCCB.