Product Description:

The MKE047B-144-AG0-RUNN is a servo motor designed by Bosch Rexroth Indramat within the MKE Synchronous Motors series and approved for operation in potentially explosive areas. In automated process lines, the unit converts electrical energy into precise rotational motion so valves, conveyors, or dosing pumps can be positioned without sparking. Its flameproof housing, combined with integrated feedback electronics, supports tight speed or position control in chemical plants, refineries, and paint facilities that handle volatile solvents.

An internal stator winding code of 144 sets the electrical resistance and inductance profile that the drive controller must match for proper current control. The rotor carries 4 pole pairs, so synchronous speed resolution remains high even at moderate frequencies, which helps with small incremental moves. Position feedback is provided by an optical single-turn Hiperface encoder identified as model S1; it generates 128 increments per revolution, allowing the controller to read absolute shaft angle with adequate granularity for speed-regulated loops. Power and signal leads exit through a right-side terminal box, which simplifies conduit routing and helps preserve the explosion-proof barrier because no pigtail connectors extend beyond the enclosure.

The motor uses an insulation system rated at 155 (F), so continuous winding temperatures can approach 155 °C without degrading the varnish or magnet adhesives. The cast housing also follows UL/CSA construction rules, supporting compliance with regional electrical codes for hazardous locations. Mechanical energy is transferred through a plain shaft that includes a DIN 332 "DS" thread and a front centering hole, permitting secure coupling to gear sets or positioners. A shaft seal is fitted to restrict vapor ingress, and the motor does not include a holding brake, so any static load must be supported by external locking or drive torque during power-off states.