Panel fit and thermal derating
The 25.4 mm width (1 inch) per pole means this single-pole breaker occupies one standard DIN-rail module. Depth of 70 mm (2.8 in) and height of 130 mm (5.1 in) — check panel depth clearance and door swing. Thermal derating is minimal through 50 °C (still 32 A); above that it steps down to 31 A at 60 °C and 30 A at 70 °C. The TM210 release has a fixed thermal pickup (Ir = 32 A) and a magnetic short-circuit pickup (Ii) adjustable from 320 A fixed — no field adjustment on Ir.
