Product Description:

The N33HRHJ-LEK-M2-00 is a stepper motor built by Pacific Scientific for the POWERPAC N Stepper Motors series. Using a laminated rotor and fixed stator poles, the unit translates command pulses into discrete shaft movement, enabling open-loop positioning for pick-and-place actuators, metering pumps, and small indexing tables. Heavy-duty NEMA mounting provisions allow direct attachment to machinery frames, while the regular leadwire interface simplifies integration with drive amplifiers in automation lines that demand accurate, repeatable rotation without feedback sensors.

Mechanically, the motor fits a NEMA 34 outline with a 3.38-inch square face, standard construction, and a stack length of 3 stacks that yields a holding torque of 12.4 Nm. The housing length is 171 mm, providing space for the windings and the laminated rotor while still meeting enclosure limits in compact machines. Each full electrical cycle moves the shaft by 1.8°, and with 200 full steps per revolution, the device can resolve 0.018 turns without microstepping. Power is delivered through a regular leadwire connection, and the conductors exit as a 4-lead parallel set that supports high-current bipolar drive modes. A straight-key shaft end transmits torque, and the front seal is omitted, which reduces friction but also limits ingress protection in clean enclosures.

Electrical insulation is rated at 340 Vdc, and resistance between the windings and frame is verified at 100 megohms, supporting operation on isolated, high-energy drives. The rear shaft is double-ended for encoder attachment, and the frame already provides an encoder-mounting provision so closed-loop upgrades can be implemented without mechanical rework. Positional fidelity stays within ± 3% of the commanded step angle because of the standard winding design and the precise internal magnetic geometry.