Product Description:

The P21NSXC-LNN-NS-02 is a two-phase hybrid stepper motor built by Pacific Scientific and delivered under the POWERMAX II P Motors series. It is intended for industrial automation tasks that need repeatable incremental motion, and every command pulse from the drive produces a measured shaft movement that allows open-loop positioning without a feedback device. With its standard construction and NEMA flange pattern, the motor fits directly onto compact indexers, small conveyors, and other motion axes where precise step control is required.

The motor has a NEMA 23 frame, so the 56 mm square face can be bolted to widely used NEMA mounts. A holding torque of 0.82 Nm lets the single-stack rotor resist load disturbance when the winding is energized but motionless. Each full step advances the shaft by 1.8 degrees, giving 200 discrete positions per revolution, and a step accuracy of ±1.5 % supports predictable index lengths. The rated phase current is 3.5 A, enabling the C-type winding to generate the magnetic flux needed for the stated torque while remaining within the thermal limits of the Class B insulation system. Standard rotor geometry, a smooth single shaft, and receptacle-style connections complete the motor’s basic configuration.

The electrical circuit has a winding resistance of 1.06 Ω and an inductance of 2.3 mH, values that determine the drive’s voltage requirement and the attainable current rise time at different step rates. The insulation system withstands up to 340 Vdc and maintains at least 100 Megohms of resistance, helping to prevent leakage currents under humidity or contamination. Continuous operation is permitted within an ambient range of -20°C to +40°C, which aligns with typical factory floor conditions. The motor uses one stator stack, follows the NEMA mounting style, includes standard construction materials, and is supplied without an encoder for open-loop drive applications.