P2HNSHS-LNN-NS-02 Pacific Scientific
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The Pacific Scientific P2HNSHS-LNN-NS-02 is a stepper motor from the POWERMAX II P Motors series, featuring a NEMA 23 frame size and standard construction. It has a step angle of 1.8 degrees with 200 steps per revolution, and operates with an IP23 protection class and insulation class B up to 130°C. The motor supports a maximum axial shaft load of 60 N and a radial shaft load of 90 N, with single smooth shaft configuration.
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Product Description:
Pacific Scientific manufactures the P2HNSHS-LNN-NS-02 hybrid stepper motor in its POWERMAX II P Motors series. This NEMA 23 unit is a two-phase motor used in industrial automation to translate pulse commands from microstep or full-step drives into incremental rotary motion. By providing precise position control without feedback devices, it supports pick-and-place axes, small indexing tables, and laboratory dispensers where deterministic open-loop positioning is acceptable.
Each full electrical step advances the rotor by 1.8 degrees, creating 200 steps per revolution for predictable angular resolution. The unenergized motor resists accidental rotation with a detent torque of 0.018 Nm, aiding fixture stability during dwell periods. A low rotor inertia of 7 × 10⁻⁶ kg·m² allows rapid acceleration when high pulse rates are applied while minimizing settling time. The bearing design permits an axial shaft load of 60 N, so the motor can handle moderate thrust from couplings or leadscrew preloads. Step accuracy is ±1.5%, supporting consistent open-loop movement when the motor operates within its torque limits. Its half-stack magnetic construction provides a compact motor length for installations with limited axial clearance.
The aluminum housing has a depth of 40.7 mm, leaving space when multiple axes are mounted side by side, while the frame width remains within the standard 57.10 mm envelope. A 6.35 mm smooth, single-ended shaft supports clamp or set-screw connections without keying. The insulation resistance is 100 megohms, and the Class B insulation system supports winding temperatures up to 130 °C while limiting the case temperature rise to 95 °C. Continuous service is permitted from -20 °C to +40 °C. The IP23 enclosure permits free-air cooling while shielding the internal laminations from direct water spray. The motor uses four-lead parallel wiring and has an insulation voltage of 340 VDC. Its shaft and bearing assembly can withstand a radial load of 90 N when the applied load remains within the permitted mounting position.
