It's rated 160 A continuous (In) with an adjustable thermal overload pickup (Ir) from 112 A to 160 A, and a fixed magnetic short-circuit trip set at 10 times In (Ii = 1600 A).
This breaker bolts into a standard IEC distribution board or a motor control center bucket. The frame 160 footprint is compact enough for a 4-pole unit to squeeze into a 600 mm wide panel section, leaving room for cable glands and busbar connections. The N conductor is unprotected on this variant — that's the "N conductor unprotected" flag in the description — so plan for a separate neutral bar or a 4-pole breaker with a protected neutral if your local code demands it.
The adjustable Ir (112–160 A) lets you fine-tune the overload protection to match the actual load without changing the breaker body, which is handy when the motor FLA doesn't exactly match a standard trip unit.