This document introduces Pacific Scientific's hybrid stepper motors, including POWERPAC and POWERMAX II series products. POWERPAC hybrid stepper motors offer the highest torque-per-frame size in the industry, with holding torques up to 5700 oz-in. POWERMAX II is the performance standard for NEMA 23 stepper motors, providing up to 253 oz-in holding torque. Pacific Scientific's hybrid stepper motors also offer conventional round-frame configurations.
Pacific Scientific offers a broad range of hybrid step motors in NEMA 23, 34 and 42 frame sizes. The catalog presents the POWERPAC, POWERMAX II, conventional and special‑purpose series, each with options such as Sigmax® technology, low‑inertia rotors and washdown construction.
The document includes technical overviews, torque‑speed curves, sealing options, encoder choices and application assistance information, plus contact details for custom motor design and support.
| Holding torque (POWERPAC NEMA 42) | 5700 oz‑in |
|---|---|
| Operating temperature range | -20 °C to 40 °C |
| Insulation class | NEMA Class B, 130 °C |
The POWERPAC hybrid step motors in the NEMA 42 frame provide up to 5700 oz‑in of holding torque.
Yes, all NEMA 34 and NEMA 42 frame hybrid step motors are UL recognized.
They are rated for operation from –20 °C to 40 °C.