DIN-rail fit and environmental limits
The 2-module width (2 MW) means it takes the same slot as a standard double-pole breaker — no surprise when swapping into an existing SENTRON subdistribution board. Ambient temperature range spans -40 °C to +75 °C, with humidity derating above 55 °C: 95% RH at 55 °C, dropping to 35% at 75 °C. That's a railway-grade thermal envelope — it lives in a non-climate-controlled cabinet on a moving vehicle without condensation issues. IP20 with connected conductors — fine inside a closed cabinet; not for wet locations.