It holds that 50 A rating flat through 50 °C, then derates to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C — useful to know if the breaker sits near other heat sources in a sealed enclosure. Breaking capacity steps from 52.5 kA at 240 V down to 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 500 V and 690 V. That 52.5 kA at 240 V covers high-fault utility secondaries; the 7.5 kA at 690 V still clears industrial motor-feed faults. The two auxiliary switches report open/closed status back to a control system or status panel.
Dimensions are 76.2 mm wide, 130 mm high, 70 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON distribution panels and third-party enclosures with the appropriate mounting base. No undervoltage release is fitted; if undervoltage protection is needed, that release must be added separately.