Product Description:

The S24HSNA-RNNM-02 belongs to the S Brushless Motors series manufactured by Pacific Scientific. It is a 6-pole neodymium-magnet brushless servo motor intended for positioning and speed-regulated actuation in industrial automation cells, conveyors, and compact gantries. By combining the S24 motor designation with a size 21 resolver for primary feedback, the unit provides shaft position data directly to a digital drive without requiring secondary feedback hardware. Its brushless design supports precise motion control with reduced wear compared with brushed motor types.

This motor delivers a continuous stall torque of 1.6 Nm, allowing it to hold loads at zero speed without exceeding thermal limits, while peak torque reaches 4.94 Nm for short acceleration bursts. A NEMA 23 frame supports compatibility with standard stepper or servo mounting patterns, and four laminated stator stacks increase flux density within that footprint. Phase inductance is 2.2 mH, which influences current ripple and supports smoother control with pulse-width-modulated drives. The phase-to-phase resistance of 1.8 ohms governs copper losses and affects the continuous current the drive must supply. A torque constant of 0.3 Nm/ARMS links commanded phase current to output torque. The motor uses winding type H, comes without a shaft seal to reduce drag, and does not include a holding brake.

Rotor inertia is 0.100 × 10^-3 kg·m², which helps balance dynamic response and overshoot, and the overall mass is 2.7 kg, keeping the motor suitable for light mobile axes. A voltage constant of 0.19 VRMS/rad/sec indicates expected back EMF and helps with drive voltage selection. Electrical terminations use a motor-mounted MS connector, which simplifies cable attachment at the housing. Because there is no secondary feedback channel, the electrical interface remains straightforward. The open construction, with no brake and no shaft seal, keeps drag low during repeated motion cycles.