PMB33E-10201-01 Pacific Scientific
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The Pacific Scientific PMB33E-10201-01 is a NEMA Size 34 servomotor featuring flying leads with MS connectors and a round shaft design. Part of the PMB Brushless Servomotors series, it includes a Hall sensor and has a nominal stall current of 7.4 ARMS at 240Vac. This model also comes with a shaft seal and a stack length multiple of 3.
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Product Description:
The PMB33E-10201-01 is a brushless servomotor manufactured by Pacific Scientific and supplied within the PMB Brushless Servomotors series. This NEMA-frame motor is intended for closed-loop motion axes where compact size and rapid torque rise are needed. By combining electronic commutation with rotor position feedback, the unit converts electrical energy into controlled rotary motion for packaging, pick-and-place, or indexing machines. That operating style suits machinery that must accelerate and settle quickly during short repetitive cycles.
The motor fits the NEMA Size 34 envelope, so it aligns with standard American mounting patterns and common mechanical interfaces. Power and feedback conductors are provided as flying leads with MS connectors, which simplifies wiring when the motor is installed in tight enclosures. At a 240 V AC supply, the winding can sustain a nominal stall current of 7.4 ARMS, and that value should be matched to the connected amplifier. This helps keep continuous loading within the motor's thermal capacity during stalled or low-speed operation. Rotor position is derived from a Hall sensor, enabling six-step commutation and reliable startup without an external encoder. The output shaft uses a round profile, making it compatible with clamp-style couplings and press-fit pulleys. It also avoids the stress concentration that can come with a keyed shaft.
The optional shaft seal helps the housing resist lubricant splash and airborne contaminants when the motor is mounted near gearboxes or coolant lines. This is useful where washdown is not required but incidental contamination is possible. Electromagnetic torque capability is increased by a stack length multiple of 3, which gives the motor a deeper iron core than shorter variants while keeping the same front-face geometry. The PMB Brushless Servomotors series uses consistent winding and connection practices across the product line, which supports predictable integration with related components. The motor can be paired with Pacific Scientific motion controllers that use matched current-loop tuning and Hall sensor phasing.
