Product Description:

The MKE047B-144-KP0-AUNN is a servo motor built by Bosch Rexroth Indramat and placed within the MKE Synchronous Motors series. It is intended for motion tasks in machinery that must operate inside hazardous or potentially explosive areas, where precise speed and position control are required without producing ignition sources. The motor integrates into closed-loop drive systems that automate valves, mixers, or material-handling axes found in chemical plants and paint lines.

The power and feedback conductors exit on the A-side, a layout that simplifies routing when the motor is mounted in confined cabinets. Field wiring lands inside a terminal box, allowing armored conduit or rigid metallic raceway to maintain the explosion-proof boundary. The unit is supplied without a holding brake, so load holding during power loss must be provided by an external clamp or by maintained drive torque. Its housing meets UL/CSA electrical equipment standards, confirming acceptance for North American installations in classified zones. The insulation system is rated at 155 (F), which supports continuous operation while winding temperatures remain below the class limit.

Electromagnetic construction relies on 4 pole pairs, giving a balance between torque density and smooth rotation when driven by standard inverter frequencies. The 144 winding code indicates the coil resistance and inductance values used by the matching Rexroth drive for precise current control. Mechanical torque transfer is handled through a shaft with keyway, cut to the DIN 6885 profile for direct coupling to pulleys or gear reducers. A resilient shaft seal is fitted to block dust, oil splash, and pressurized washdown fluids from entering the stator cavity. This sealing arrangement helps protect the internal motor space during operation in demanding industrial environments.