Product Description:

The P2HNSXB-LDF-SS-02 is a two-phase hybrid stepper motor manufactured by Pacific Scientific for the POWERMAX II P Motors series. It acts as an electromechanical actuator that converts digital step commands from a PLC or indexer into precise incremental motion. This makes it useful for small positioning tables, labeling heads, and light machine-tool feeds in automated equipment. The hybrid stepper design supports predictable open-loop motion in compact automation assemblies that require repeatable starts, stops, and indexing moves. Unlike a servo system that depends on continuous feedback, a stepper motor can hold position in fixed increments when the load stays within its torque range. That behavior is useful in compact machines that need straightforward pulse-based control without complex tuning.

The motor is built on the NEMA 23 frame, providing a 57 mm square mounting footprint compatible with common brackets and gearheads. Each control pulse advances the shaft by 1.8 degrees, producing 200 full steps per revolution and maintaining a step accuracy of ±1.5%. Parallel drive wiring draws 2.6 A DC per phase through windings that measure 0.76 Ω and 1.9 mH, delivering a holding torque of 0.42 Nm. Detent torque without excitation is 0.018 Nm, and the half-stack construction reduces magnetic path length. Two electrical phases, B-type windings, a standard rotor, and receptacle terminations complete the electrical package while keeping overall weight to 0.45 kg.

Continuous service is permitted between -20°C to +40°C ambient, protected by Class B 130°C insulation, 100 MΩ dielectric resistance, and a 340 Vdc insulation voltage rating. The rotor’s inertia is only 0.000007 kg·m², which supports fast acceleration with minimal drive power and helps the motor respond quickly to short indexing commands. The low rotor inertia also helps reduce settling time after short moves, which is useful in repetitive pick-and-place or feed applications. Bearings withstand a radial load of 89 N and an axial load of 58 N, and the double shaft with a ground flat simplifies coupling to encoders or lead screws. The NEMA mounting flange, standard construction housing, and two-phase architecture provide a familiar mechanical interface while maintaining the low torque ripple typical of this motor family.