Product Description:

Pacific Scientific's P2HNRXB-LNN-NS-00 is a hybrid stepper motor within the POWERMAX II P Motors series. As an incremental actuator, it delivers precise bidirectional rotation to conveyors, dispensers, and small gantries, translating pulse commands from a microstep or full-step drive into controlled shaft positions for industrial automation tasks. This operating method makes the motor suitable for applications that require repeatable indexing and stable low-speed motion without a closed-loop feedback device.

Mechanical proportions follow the NEMA format: frame size NEMA 23, a motor length of 40.7 mm, a 66.67 mm bolt circle with 5.08 mm mounting holes, and a 38.1 mm pilot diameter secure the housing. The single smooth shaft is 6.35 mm in diameter and 19.1 mm long. Internally, B-type windings draw a parallel current of 2.6 A through 0.76 Ω of phase resistance and 1.9 mH of inductance, which helps with chopper drive sizing. At standstill, it provides 0.42 Nm of holding torque. Each pulse advances the rotor by 1.8 degrees, yielding 200 steps per revolution with ±1.5% accuracy. Insulation is Class B rated to 130 °C, backed by 100 MΩ insulation resistance, a 340 Vdc dielectric limit, and 6.6 °C/W thermal resistance. The construction is standard, the laminations form a half-stack, and regular lead wires exit through a receptacle for connection.

With no feedback device installed, residual detent torque is 0.018 Nm, helping the rotor resist minor disturbances when the phases are de-energized. Rotor inertia of 0.007 × 10⁻³ kg·m² supports rapid acceleration profiles, while overall mass is 0.45 kg to minimize load on linear stages. Continuous duty is specified for ambient conditions from -20 °C to +40 °C. The standard rotor build, smooth shaft modification, and NEMA mounting style allow straightforward integration where moderate torque density, reliable thermal behavior, and open-loop positional control are required.