The 4-pole configuration with neutral left suits 3-phase + N systems common in European and Asian panel builds. Backplate mounting and front connections keep wiring straight in a standard enclosure; the 9-pitch 12-module width fits a 108 mm DIN cutout.
Thermal-magnetic trip — the TM-D curve
The TM-D trip unit is a fixed thermal-magnetic design: the thermal element protects against sustained overloads (cable heating), while the magnetic element clears short-circuits instantaneously. If the ambient in the enclosure exceeds 40 °C, derate per the manufacturer's thermal curve. The breaker is suitable for isolation per IEC 60947-2 — you can use it as a disconnecting means with a visible gap indicator (green flag for auxiliary contacts,).
