The Siemens 3VA2510-7KQ32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 1000 A continuous current, holding that rating from 40 °C through 55 °C ambient before derating starts — 955 A at 60 °C, 885 A at 65 °C, 815 A at 70 °C. The 3-pole line-protection version carries an ETU860 electronic trip unit with adjustable long-time pickup (Ir) from 0.5 to 1.0× In (500–1000 A) and short-time delay (tsd) adjustable 0.05–0.5 s — so you can shape the curve for selective coordination downstream without nuisance trips. Breaking capacity is the headline: 440 kA at 240 V AC, 242 kA at 415 V, 74 kA at 690 V. At 415 V the 242 kA still covers virtually all industrial service-entrance applications.
Panel integration and communication
Dimensions: 320 mm height, 210 mm width, 120 mm depth. That depth (120 mm) is compact for a 1000 A MCCB — it fits standard 400 mm deep enclosures without the door interfering. The breaker supports communication functions (the ETU860 trip unit can interface with fieldbus or Modbus via an optional communication module), so it can report trip events, current draw, and status to a PLC or SCADA — useful for predictive maintenance and remote monitoring in larger plants.
