The interrupting capacity scales with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. The TM240 release gives a fixed thermal pickup and magnetic trip threshold — no interchangeable rating plugs, so the breaker is sized to the load from the start. The 76.2 mm width (three 25.4 mm pole spacings) matches standard SENTRON 3VA panel cutouts and busbar centers.
Active production — no LTB pressure on this BOM line
Auxiliary contact block is factory-fitted: three HQ auxiliary switches.
Above 55 °C it derates linearly: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, 144 A at 70 °C. If the panel internal ambient hits 60 °C near the top of a sealed enclosure, the breaker still carries 150 A — that's the figure to use for the thermal coordination study, not the 160 A nameplate. Mechanical endurance is 15,000 operations — typical for a distribution MCCB that cycles a few times a year, not a motor-switching contactor that cycles daily.
This is a current-production, widely stocked SENTRON catalog item.