Product Description:

The EB-104-B-11-B3 explosion-proof servomotor is produced by Kollmorgen as part of the EB Explosion Proof Motors series. It is built for motion tasks in hazardous areas where flammable gases or dust may be present, allowing closed-loop speed or position control while containing any internal ignition event. In automated processing lines, the unit converts electrical energy into rotary motion that can drive pumps, mixers, or positioning stages while supporting safe operation in hazardous locations.

The motor’s continuous operating limits include 1.57 N-m of stall torque and a phase line current of 4.20 ARMS. When energized by its nominal supply of 230 VRMS, the winding develops a back electromotive force of 22.5 VRMS/kRPM, which helps match the motor to a compatible servo drive. The stator resistance is 2.72 Ω, and the winding characteristics support smooth current transitions during normal operation. A torque constant of 0.370 N-m/ARMS relates commanded current to mechanical output. The built-in holding brake requires 24 VDC to release, draws 0.60 ADC, and permits running speeds up to 6000 rpm while maintaining proper brake disengagement. A 3/4-14 NPT lead exit thread permits sealed conduit entry so that wiring does not become an ignition source.

For transient demands, the shaft can deliver 4.45 N-m while momentarily accepting 12.6 ARMS. The brake supplies a static holding torque of 2.3 N-m, which helps maintain axis position when power is removed, and its ferromagnetic stack is rated for repeated cycles at speeds up to 6000 rpm. An inductance of 14.4 mH restricts di/dt during these surges, helping the drive’s current regulators remain stable. Additional mechanical data include a shaft diameter of 14.00 mm for coupling selection, and the frame is sized so peak output remains within the bearing load limits.