Integrator's note on the 3RH1344-2BB40-ZW95
It's designed for control-circuit switching in motor starter assemblies or as a signal repeater in PLC output circuits. The DC coil draws 3.2 W both on pickup and hold, so the PLC output or relay driving it must be rated for that continuous load — no coil economizer is built in. Switching capacity is rated per contact across several voltage levels: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. For DC control circuits, it also carries 1 A at 110 V and 0.27 A at 220 V. These are the thermal current ratings; for motor-circuit auxiliary duty, derate per the contactor's utilization category (typically AC-15 for solenoid loads).
The size S00 footprint — 45 mm wide, 60 mm high, 114 mm deep — leaves room for a standard 4-pole contactor in a compact panel. Terminals accept 2x (0.25... 2.5 mm²) solid or stranded wire (2x 24... 14 AWG).