The 187 kA interrupting rating at 240 V means it handles high-fault-current utility feeds without cascading upstream; at 415 V it still breaks 121 kA, and at 690 V it holds 17 kA. That SCCR headroom matters when the transformer is close to the panel. The 160 A rating holds flat from 40 °C to 50 °C, then derates to 144 A at 70 °C — a panel in a hot mechanical room loses about 10 % of capacity.
Width 76.2 mm, depth 70 mm, height 130 mm. That 76.2 mm width is three 25.4 mm pole spaces — standard for a 3-pole MCCB on a DIN rail or bolted to a backplate. Depth of 70 mm means it clears most shallow enclosures; verify the door clearance if the breaker is mounted near the cover.
Auxiliary contacts and release options
The TM210 release has an adjustable long-time pickup and a fixed magnetic trip; the tr max is 1 second at the rated multiple.
Environmental range
The storage range covers cold warehouses and hot shipping containers. Latching endurance is 15 000 cycles — typical for a distribution breaker that sees infrequent switching.