It uses a TM210 thermal-magnetic overcurrent release — thermal for overload, magnetic for short-circuit — and carries a current-production lifecycle status, meaning it remains in Siemens' active catalog.
Interrupting capacity and thermal derating
Interrupting capacity depends on the system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 11.9 kA at 690 V is the figure to check if you're feeding a 690 V motor drive — it's the same value at 500 V, so the breaker doesn't lose further headroom above that threshold. The thermal curve holds 100 A flat from 40 °C through 50 °C, then derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. If your panel ambient sits at 60 °C, you lose 4 A of headroom — still within most 100 A feeder designs, but worth confirming against the connected load.
The 76.2 mm width is three standard 25.4 mm pole pitches — it occupies the same footprint as any 3-pole SENTRON 3VA frame.