The 108 mm width and 137 mm height mount flat on a backplate — no DIN-rail adapter needed — and front-facing terminals simplify busbar or compression-lug connections.
The TM-D trip unit combines a thermal bimetal for overload protection and a magnetic coil for short-circuit; it's a standard thermal-magnetic curve, not electronic. Category A means it's not intended for current-limiting duty; it lets through the full I²t of the fault.
Integration and mounting notes
Front-side connections for both line and load — no rear-access required. Connection pitch is 35 mm with spreaders, 27 mm without. The 12-module 9 mm pitch helps with fill-factor planning in multi-breaker enclosures. IP40 means protection against tools and small wires, not washdown; IK07 resists 2 J impact — fine for indoor panel environments.