It carries a continuous current rating of 50 A at 40 °C ambient, with no derating needed up to 50 °C — at 55 °C it still holds 49 A, and at 70 °C it's rated 45 A. That thermal curve means the breaker holds its full ampacity in most ventilated enclosures; only tight, hot cabinets force a derate. Breaking capacity is 75.6 kA at 240 V AC, 52.5 kA at 415 V, and 32 kA at 440 V — high enough for most industrial service-entrance and feeder applications where fault currents are substantial. No communication function — it's a standalone thermal-magnetic breaker, not a metering or communicating device.
Dimensions are 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON panelboards and third-party enclosures with busbar or cable connections.