The Siemens 3RH1344-1BF40 is a SIRIUS auxiliary contactor with a 110 V DC coil and 4 NO instantaneous contacts. Its size S00 footprint is 45 mm wide, 57.5 mm tall, and 111 mm deep.
The 110 V DC coil draws a closing and holding power of 3.2 W — a steady-state load the control transformer or DC supply must cover. The 4 NO contacts are rated for utilization categories typical of auxiliary contactors: the 10 A at 24 V covers DC control loads; the 6 A at 230 V and 3 A at 400 V cover AC signal switching.