B-402-A-91-027 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Kollmorgen B-402-A-91-027 is part of the Goldline B and BH Motors series and has a rated power of 0.97 kW with a rated speed of 1500 RPM. This motor provides a peak torque of 19.8 Newton-meters, pole count of 4, and operates on a line voltage of 230 VAC. It features a continuous line current of 3.0 Amps RMS and a resistance of 10.5 Ohms at 25°C.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The B-402-A-91-027 servo motor is manufactured by Kollmorgen for the Goldline B and BH Motors series. It is a brushless AC machine intended for closed-loop axes in industrial automation. When paired with a compatible amplifier, the motor converts programmed electrical currents into controlled torque and speed, allowing precise actuation in packaging cells, material-handling gantries, and general motion platforms.
The motor has a back electromotive force constant of 136.0 V RMS/krpm, which indicates the voltage that the drive must overcome to establish motion at a given speed. Under continuous duty, the windings draw 3.0 A RMS, while acceleration commands can momentarily demand a peak of 9.3 A RMS. At its rated operating point, the shaft turns at 1500 rpm and delivers 0.97 kW of mechanical power. For short intervals, the electromagnetic stack can supply up to 19.8 N-m of torque, providing headroom for load disturbances. A line-to-line inductance of 220 mH filters current ripple. The windings are energized from a 230 VAC supply and tolerate up to 250 V RMS between phases. With a torque sensitivity of 2.51 N-m/A RMS and a four-pole magnetic layout, commanded current translates linearly into shaft torque. Stall torque at 40 °C is 6.8 N-m.
Mechanical response is influenced by a rotor inertia of 0.000323 kg-m², allowing rapid reversals without excessive drive effort. Copper losses are influenced by a winding resistance of 10.5 ohms measured at 25 °C, and the housing dissipates that heat through a thermal path rated at 0.54 °C/W. The motor has a thermal time constant of 22 minutes, so its temperature rises gradually during intermittent overloads. This delayed thermal response helps the motor accommodate brief increases in torque demand without an immediate rise to its steady-state winding temperature. Cabling and operating cycles must still account for continuous current, peak current, winding resistance, and the available heat-dissipation path. The combination of low rotor inertia and gradual thermal response supports rapid changes in motion during intermittent operating cycles.
