Product Description:

The PMA44N-01100-00 brushless servomotor is manufactured by Pacific Scientific as part of the PMA Brushless Motors series. Designed for closed-loop motion axes, the motor converts electrical energy into controlled rotary motion for positioning tasks in industrial automation. Its classification as a PMA brushless servomotor confirms a permanent-magnet design that uses an external drive for commutation and speed control. Because the drive handles commutation, the motor serves as a compact actuator for equipment that requires repeatable motion and stable speed regulation.

This unit delivers a continuous stall torque of 8.2 Nm, indicating the torque it can hold indefinitely without overheating. During acceleration or shock loads, it can generate a peak torque of 29.4 Nm, providing short-term reserve for demanding moves. The rotor inertia is 0.68 × 10⁻³ kg·m², which indicates how quickly the shaft can change speed under controller command. To reach and sustain these torque levels, the windings draw a nominal stall current of 3.8 ARMS from a drive operating in the 240–480 V AC voltage class. These ratings indicate the current and voltage range required from a compatible drive while keeping the stator within its thermal limits.

The square frame uses a motor body width of 115 mm, allowing it to fit standard metric mounting patterns. A 24 V brake is integrated to hold position when power is removed, and the right-angle orientation of the 6-pin power connector helps reduce cable bend in compact panels. Feedback is provided by a resolver, allowing the drive to monitor rotor position across the full speed range. The shaft has a smooth cylindrical form that mates with clamp or collet couplings, and the design omits special options so installation follows normal PMA practices. The stack length code 4 determines the active magnetic length used for torque production, while the overall package weighs 9.0 kg. That mass supports rigid mounting in machinery without requiring additional external bracing.