It carries a 50 A continuous current rating at 40 °C, derating to 45 A at 70 °C. The interrupting capacity hits 75.6 kA at 240 V, 52.5 kA at 415 V, and 11.9 kA at 690 V — covering most industrial distribution voltages in one frame.
Interrupting capacity and thermal derating
The 75.6 kA at 240 V is the headline number, but the full curve matters: 52.5 kA at 415 V and 32 kA at 440 V means this breaker handles most 400 V-class fault levels without an upstream current-limiting fuse. Thermal derating is flat from 40 °C to 50 °C at 50 A, then drops 1 A per 5 °C step to 45 A at 70 °C. That 70 °C operating ceiling matches the maximum ambient in a sealed, non-ventilated enclosure.
Undervoltage release and release design
This variant ships with a factory-fitted undervoltage release (UVR) designated as TM240 overcurrent release. No ground-fault monitoring or communication module on this build; it's a straight line-protection MCCB with UVR only.
Width is 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in) — standard SENTRON 3VA frame footprint.