Product Description:

The MKE047B-144-KP0-BUNN is a three-phase servo motor produced by Bosch Rexroth Indramat as part of the MKE Synchronous Motors series. It is specified for industrial automation cells located in potentially explosive areas, where accurate positioning must coexist with strict safety constraints. When paired with a matching drive, the motor provides closed-loop control of torque, velocity, and position so conveyors, indexing tables, and filling equipment can follow deterministic motion profiles while withstanding continuous operation on assembly, process, or packaging lines.

The classification as a servo motor for potentially explosive areas confirms that the mechanical design and winding insulation are engineered for operation where ignitable gases or dust may exist. Compliance with UL/CSA standards aligns the motor with North American safety listings, simplifying acceptance by plant inspectors. Its thermal system is rated to 155 (F) insulation class, permitting a winding temperature rise that supports continuous duty without accelerating aging of the varnish. The electromagnetic circuit uses winding code 144, which sets the voltage constant, current demand, and torque curve offered by the drive. Rotor geometry includes 4 pole pairs, so electrical frequency is quadruple mechanical speed, giving finer control resolution and smoother torque production at low rpm.

Installation features address integration inside flameproof enclosures. Power and feedback leads enter through a top-mounted terminal box, and the cable glands are oriented on the B-side of the housing. A single-piece steel shaft with a DIN 6885 keyway matches standard couplings and allows positive torque transfer without custom hubs. There is a shaft seal, limiting dust or oil ingress along the journal when the motor is paired with gearboxes or open machinery. The unit is supplied without a holding brake, so static load retention must be provided by the drive or external locking devices.