Four poles, toggle-operated, built for distribution duty per EN/IEC 60947-2. Breaking capacity hits 40 kA Icu at 240 V AC, 25 kA at 415 V, and 15 kA at 500 V — the B code (25 kA at 415 V) tells you this is the standard-interrupting variant, not the high-performance S or L version.
Thermal-magnetic trip means overload protection (L) is handled by a bi-metal thermal curve, short-circuit (I) by a magnetic solenoid — no electronics to fail, no auxiliary power needed. The TM-D trip unit is the fixed-setting version; you get no dial-adjustable Ir or Isd like on the Micrologic electronic trips, so the 160 A rating is your only amp setting. Verify your continuous load fits under that with headroom for ambient temperature inside the enclosure. The 140 mm width, 161 mm height, and 86 mm depth give you the cutout and clearance numbers for gland-plate layout. Front connections both top and bottom simplify busbar and cable routing in a dead-front panel.
The 20000-cycle mechanical durability and the electrical endurance curve (20000 cycles at 440 V In/2, 10000 at 440 V In) are typical for a 160 A MCCB — expect to commission it into a panel with a service life matching the installation, not a frequently switched disconnect.