It carries a TM240 thermal-magnetic release — the fixed thermal element and magnetic trip are matched to the 160 A frame, so there's no field-adjustable pickup to mis-set. That's one less thing to verify during commissioning. At 240 V it interrupts 220 kA; at 415 V that drops to 154 kA; at 440 V it's 75.6 kA; and at 690 V it holds 17 kA. For a 160 A frame those are high-interrupting ratings — it's sized for a main or large feeder where fault current is substantial, not a branch that sees a few kiloamps.
At 55 °C it's 153.6 A, at 60 °C it's 150.4 A, and at 70 °C it's 144 A. If your enclosure sits near a heat source or in a non-conditioned space, that thermal curve tells you exactly where you land without guessing. That gives you one set of contacts for status feedback (open/closed) and a separate set that only changes state on a trip event — useful for remote alarm annunciation without wiring through the main breaker position. Mechanical endurance is 15,000 operations.
The operating minimum of -25 °C is fine for most indoor industrial environments; outdoor unheated cabinets in northern climates might push that limit.