Its interrupting capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and holds 11.9 kA all the way up to 690 V — so it handles high-fault scenarios across common industrial voltage levels without needing an upstream current-limiting fuse. That SCCR headroom means you can coordinate downstream branch breakers with confidence, especially on 480 V or 400 V distribution where fault currents can exceed 50 kA. Thermal derating is mild: the breaker holds full 50 A up to 50 °C, then drops to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
Auxiliary switches and shunt trip — what's inside
No undervoltage release is fitted, so if you need UVR for machine-restart prevention, this isn't the variant. The base switch is order code 3VA11504EF360AA0 — that's the core mechanism this assembly builds on. Communication function is absent; this is a standalone breaker, not a 3VA2 with PROFIBUS or Modbus.
Footprint is 76.2 mm wide (3 in), 130 mm tall (5.12 in), and 70 mm deep (2.76 in). The 70 mm depth leaves clearance for wiring gutters and busbar connections; no need to oversize the enclosure just for this breaker.