It carries a maximum current rating of 320 A, so it handles the main feed for a moderate-sized sub-distribution board or a heavy machine group. The TM220 thermal-magnetic release gives a fixed thermal trip curve with magnetic short-circuit pickup — no interchangeable trip units, which simplifies spares planning but locks you into that trip characteristic.
Breaking capacity — what the voltages tell you
Breaking capacity drops as system voltage rises: 76 kA at 240 V, 53 kA at 415 V, 32 kA at 440 V, and 12 kA at 500 V.
Rated 16 A continuous from 40 °C through 55 °C, then derates to 15 A at 60 °C through 70 °C. That flat 16 A band means you get full rating in most ventilated enclosures; only tight, hot cabinets force the 15 A limit.