That 160 A holds flat from 40 °C up to 50 °C ambient — no derating needed in a warm enclosure — then eases to 150 A at 70 °C. The interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and still 17 kA at 690 V. The 4-pole design covers three-phase plus neutral, common for North American and some European distribution schemes where the neutral needs switching.
Panel fit and integration — 70 mm depth, 101.6 mm width
The 101.6 mm width (4 inches) is the standard 4-pole MCCB footprint; it occupies four 25.4 mm pole positions on the DIN rail or mounting plate.
Power loss and thermal management — 38 W at full load
Maximum power loss is 38 W at rated current. That's the heat the breaker dumps into the enclosure at 160 A. In a multi-breaker panel, sum the losses and check the cabinet's dissipation — 38 W per pole is manageable, but a dense lineup of six or eight breakers can push a small enclosure past its thermal limit.