B-404-C-B3 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen B-404-C-B3 is part of the Goldline B and BH Motors series and delivers a rated power of 5.4 kW with a continuous torque of 13.1 Newton-meters at 40 degrees Celsius. This motor features a maximum operating speed of 5000 RPM and a peak torque of 35.3 Newton-meters. It operates with a maximum acceleration of 53700 radians per second squared and uses a brake holding torque of 8.0 Newton-meters at 24 VDC.
Internal Product Review
The B-404-C-B3 is a Kollmorgen Goldline servo motor rated at 5.4 kW with 13.1 N-m continuous torque at 40 C. Peak output reaches 35.3 N-m, and a 5000 RPM maximum operating speed supports strong dynamic response in motion applications. A 24 VDC brake with 8.0 N-m holding torque adds dependable axis control, making this motor a strong choice for precise automation systems.
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Product Description:
The B-404-C-B3 is a brushless servo motor manufactured by Kollmorgen for the Kollmorgen Goldline B and BH Motors series. Intended for industrial automation, the unit converts three-phase electrical power into precise rotary motion for indexing tables, gantry axes, and packaging machinery. A built-in electric brake enables load holding during emergency stops or power loss, which simplifies vertical-axis safety design. The compact frame allows direct coupling to gearboxes or pulleys, letting designers minimize mechanical compliance while maintaining repeatable position control over long production shifts.
Its continuous shaft torque is 13.1 N-m when the stator temperature is 40 °C. To sustain that output, the drive must supply 19.8 A RMS of line current, a value used to size cable conductors and thermal protection. The winding inductance is 8.4 mH, so current changes are filtered to reduce ripple while still allowing responsive torque commands. A back-EMF constant of 40.2 VRMS/kRPM links rotational speed to generated voltage and helps determine required bus voltage margins. The phase resistance is 0.34 ohms, which contributes to copper losses and supports thermal planning. Additional features include a 5.4 kW power rating and an electrically released brake with 8.0 N-m of holding torque that is released at 24 VDC.
During rapid indexing, the motor can deliver 35.3 N-m of peak torque while drawing 55.9 A RMS from the amplifier for short intervals. With a maximum operating speed of 5000 RPM, this peak torque can accelerate loads quickly, aided by a rotor inertia of 0.000656 kg-m² that balances fast response with mechanical stability. Torque per ampere sensitivity is 0.66 N-m/A, and the insulation permits operation on line voltages up to 250 VRMS, allowing the device to interface with high-voltage drives without exceeding dielectric limits.
