What the ratings mean for your panel
The 3VA1150-6EF36-0KH0 is a SENTRON molded case circuit breaker rated for 50 A continuous current (Iu) and carries a TM240 thermal-magnetic trip unit. The breaking capacity numbers tell the real story: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and still 17 kA at 690 V. That's enough fault-interrupting muscle for most industrial distribution boards without cascading upstream — the 415 V figure alone covers the common European low-voltage network fault levels. The 3-pole line-protection version means it's set up for feeder or main breaker duty, not motor protection; no undervoltage release, no phase-failure detection, no communication module on this variant. Thermal derating is flat from 40 °C to 50 °C — still 50 A — then drops 1 A per 5 °C step to 45 A at 70 °C. If your panel ambient runs 55 °C, you're good for 48 A continuous; at 65 °C, 46 A. That's a predictable curve for a sealed enclosure with no forced cooling. The auxiliary contact block is factory-fitted: 2 auxiliary switches plus 1 trip alarm switch (HQ type). The shunt trip (STL) is included as the auxiliary release design. No ground-fault monitoring module on this order code — if you need GF protection, that's a different variant or an external add-on.
Footprint and panel fit
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep. That 70 mm depth is the body only — add the handle throw and the auxiliary wiring channel. The 76.2 mm width is a standard 3-pole MCCB footprint; it'll drop into a panel laid out for a 3VA1110 or similar SENTRON frame without re-drilling the mounting plate. IP40 on the front face means it's protected against tools and wires >1 mm, but it's not sealed — keep it inside a rated enclosure.