The R911402253 (MKE047B-144-CP0-BE0N) is a Rexroth Indramat synchronous servo motor engineered for operation in potentially explosive industrial environments. It is constructed with an IP65-rated housing, finished in black RAL9005 paint for corrosion resistance, including exposure to seawater and dilute acids. The motor conforms to the ATEX directive, supports ambient temperatures up to 40°C, and installation heights up to 1000 meters. It utilizes a multiturn absolute Hiperface encoder (128 signal periods), an optical encoder (type M1), and has four pole pairs. The shaft is constructed from steel, includes a DIN 6885-1 keyway and shaft seal, and there is no holding brake. Motor power connections are directed to the B-side via a terminal box. The insulation class is 155 (F), and cooling is achieved through natural convection. The winding designation is 144 and the motor size is 47