Product Description:

The M22NRXC-LSN-NS-03 is a two-phase hybrid stepper motor from Pacific Scientific’s POWERMAX II M Motors series. In motion control assemblies, it converts discrete pulse commands from a drive into precise rotational increments, providing open-loop positioning for indexers, pick-and-place heads, and small conveyors. Its step-based operation helps the control system execute repeatable moves without continuous position correction.

Electrical characteristics determine how the motor interfaces with a stepper drive. With a phase count of 2 and winding type C, the stator is arranged in two stacks that are wired in series to draw 1.55 A DC per phase. The resulting coil impedance is set by a series inductance of 12.4 mH and a series resistance of 3.12 ohms, allowing predictable current decay during microstepping. At rated current, the motor develops a holding torque of 238 oz-in, while the enhanced construction and standard rotor help maintain magnetic stability. The insulation system is rated for 340 Vdc with 100 Megohms of leakage resistance, permitting operation with high-energy drives. Power leads exit through a regular leadwire connection, and a receptacle serves as the only electrical interface because no feedback device is fitted. The frame size is NEMA 23, which fits standardized mounting plates.

For mechanical integration, the motor uses a NEMA mounting style with a smooth shaft and a standard rotor, so couplings can seat without keyway alignment. Each full step advances the shaft by 1.8 degrees, giving 200 discrete positions per revolution with a step accuracy of ±1.5%. Operation is specified from -20 °C to +40 °C, and the insulation limit of Class B 130 °C provides thermal margin within that ambient range. An enhanced construction type adds reinforced laminations, while the absence of feedback reduces cabling complexity.