Product Description:

The EB-202-B-91-001 is an explosion-proof brushless servo motor produced by Kollmorgen within the EB Explosion Proof Motors series. Designed for hazardous industrial zones, the unit converts electrical input into controlled mechanical torque for positioning and velocity tasks in automation cells. By enclosing the winding and rotor in a flame-tight housing, the manufacturer enables safe operation where flammable gases may be present while maintaining the dynamic response expected from a permanent-magnet servo package.

During continuous operation, the motor draws a line current of 3 ARMS to generate its rated torque of 2.37 N-m, but the continuous stall capability rises to 2.50 N-m so the axis can hold load at zero speed without overheating. A torque constant of 0.82 N-m/ARMS links drive current to output torque, and the back electromotive force constant of 49.7 VRMS/kRPM supports servo amplifier tuning. The three-phase stator is wound for a nominal supply of 230 VRMS, and its 6.3 Ω DC resistance limits thermal losses under rated excitation. Winding inductance is 74 mH, giving an electrical time constant of 8.3 ms that describes current rise toward commanded setpoints.

For short bursts, the drive can deliver 7.05 N-m of peak torque when the controller supplies up to 9 ARMS of line current, allowing rapid acceleration of connected machinery. The rotor inertia is only 0.000100 kg-m², which minimizes stored energy and sharpens response to micro-stepped commands. Static friction remains low at 0.007 N-m, supporting smooth creeping speeds during indexing moves. Thermal headroom is expressed by the mechanical time constant of 1.39 ms, indicating how quickly the assembly responds to load changes. Continuous output is rated at 1.30 HP, matching pumping, filling, and valve-actuation duties in explosion-classified work zones.