Product Description:

The M21NSXC-LSS-SS-02 is a hybrid stepper motor produced by Pacific Scientific and supplied within the POWERMAX II M Motors series. Designed for open-loop positioning tasks, the unit converts pulse trains from an indexer or drive into incremental shaft movement for conveyors, pick-and-place axes, or small gantries in industrial automation. Its NEMA mounting face allows direct substitution into legacy frames, while the enhanced construction maintains stiffness during rapid accelerations.

The motor uses a NEMA 23 frame, so its front face measures 2.3 inches square, which is a common size for compact machinery. Each full step advances the rotor by 1.8 degrees, and those increments accumulate to 200 discrete positions per revolution, giving predictable resolution without feedback devices. Positional deviation stays within ±1.5%, meaning indexing error remains tightly controlled for light machining or metering valves. Environmental ingress is limited by an IP23 housing, which blocks fingers and most falling dirt while still allowing cooling air to circulate through the vents. A standard rotor, single-stack lamination, and C-type winding complete the magnetic circuit for balanced torque across the speed range.

Thermal and electrical limits align with typical automation cabinet practices. The windings use insulation rated at Class B, 130 °C, allowing coil temperature to rise well above ambient without insulation breakdown. The insulation resistance between phases and frame is 100 Megohms, and the insulation test voltage is 340 Vdc. Continuous service is supported from -20 °C to +40 °C, matching unconditioned shop floors. The receptacle connector keeps wiring straightforward, and the short body helps the motor fit crowded machine sections where cable access and mounting depth are limited.