Product Description:

The P22NSHS-LNS-NS-02 is a hybrid stepper motor built by Pacific Scientific and assigned to the POWERMAX II P Motors series. Designed with standard construction techniques and a standard rotor, the unit delivers incremental motion without an integral encoder, making it appropriate for open-loop positioning tasks in pick-and-place, metering, or indexing stations. Because it is intended for open-loop control, it is commonly paired with stepper drives that command position through pulse trains rather than through closed-loop feedback devices. Its NEMA mounting style mates directly with common motor brackets, and the single smooth shaft simplifies coupling to pulleys or gearheads. By dividing each revolution into fine increments, the motor supports repeatable motion sequences in automated machinery.

The motor uses a NEMA 23 frame, so its 2.3-inch square face aligns with widely available drive hardware. Electrical insulation has a Class B, 130 °C rating, allowing continuous winding temperatures up to 130 °C while preserving varnish integrity. Dielectric strength is supported by an insulation resistance of 100 Megohms and a high-pot capability of 340 Vdc between the windings and frame. Power is introduced through a 4-lead parallel connection, a layout that supports series or parallel drive configurations to match supply voltage and desired torque. The lead arrangement provides flexibility when selecting current and voltage settings for the application. The two-stack lamination set, special winding, and ±1.5% step accuracy help the motor generate uniform torque pulses during open-loop operation.

The magnetic circuit is built from 2 rotor-stator stacks, giving higher detent torque than single-stack designs while keeping inertia controlled. Rated operation spans -20 °C to +40 °C, so the motor can be installed in unheated equipment rooms or ventilated panels without derating. Each electrical impulse advances the rotor by 1.8 degrees, and one full revolution equals 200 equal steps. This stepping pattern works well with common microstepping ratios used by modern drives.