Product Description:

The MKE047B-144-CG1-RUNN is a servo motor for potentially explosive areas manufactured by Bosch Rexroth Indramat and assigned to the MKE Synchronous Motors series. It combines the compact 047 frame with winding code 144 to produce controlled torque in automation zones that require explosion-proof components. Within a motion system, it converts drive current into mechanical rotation so conveyors, actuators, or positioning tables inside hazardous cells can move with closed-loop precision while meeting the safety requirements for those environments.

The power and feedback conductors exit on the right side because the motor’s connection direction is fixed to that side of the housing, and they terminate in a terminal box that simplifies armored conduit entry in classified areas. Rotor position is monitored by a feedback unit that delivers 128 counts per revolution from an optical multi-turn absolute Hiperface encoder, so the controller can retain shaft position information even after power loss. The rotor has 4 magnetic pole pairs, which work with the 144 winding to produce synchronous torque at standard drive frequencies and support stable speed regulation across the motor’s continuous operating range. Encoder variant M1 is installed to match the Hiperface protocol used by Rexroth drives and to support multi-turn data storage without batteries.

An integral holding brake supplies 2.2 Nm of static torque so vertical or suspended loads remain fixed when the inverter is disabled. The cast housing follows UL/CSA construction standards for equipment used in North American explosive atmospheres, and its insulation system is rated at 155 (F) so the stator windings can tolerate elevated internal temperatures without loss of dielectric strength. Mechanical power is transmitted through a plain shaft that includes a frontal centering hole, a DIN 332 DS thread for puller tools, and a shaft seal that helps prevent oil or vapor entry along the journal.