802D4280-B03K

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The 802D4280-B03K motor, part of Pacific Scientific's POWERMAX II M Motors series, features a NEMA 34 frame size with SIGMAX® technology for enhanced performance. It offers holding torque of approximately 830 oz-in and multiple winding options to match application needs, ensuring reliable operation.

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Product Description:

As a member of the POWERPAC HYBRIDS series, Pacific Scientific equips the 802D4280-B03K with SIGMAX® Technology.

The model comes in a standard NEMA 34 frame size to integrate easily in standard industrial setups. This motor needs a standard set of one rotor as for the M21 series and can generate 830 oz-in (5.86 Nm) holding force, making it efficient for heavy-duty applications. Under 1 kHz with 1 amp, the phase resistance reads 0.18 ohms, and the phase inductance shows 1.2 mH, matching high-performance electrical standards. This motor proves reliable under high temperatures because it reaches 130°C at the winding when running at 25°C in standard conditions. The basic P21 Series variations produce from 0.55 Nm to 0.78 Nm torque ratings, while alternative models within the series extend torque levels up to 1.26 Nm and 1.78 Nm. The product offers two connection types that let builders select between bipolar 4-lead or unipolar 6-lead wiring methods according to their system requirements. Customers can purchase an optional encoder that works with Agilent HEDS 5600 series products for precise feedback and electronic control of their motor system.

The motor withstands temperatures up to 40°C. It meets IP65 standards for resistance against water splashes in harsh environments. The motor supports four winding choices (J, K, L, or M) that enable users to pick the best configuration based on their application requirements. SIGMAX® patent technology boosts motor performance with 25% more torque compared to standard models. The motor flexibility extends to several shaft types, including single or double length extensions, plus keys and smooth shaft styles. The motor has an improved cooling system that uses optional airflow to help it run reliably when operating at its highest speed capacity.

Ambient Operating Temp
≤40°C
Connection Options
4-lead bipolar or 6-lead unipolar
Cooling Method
Forced-air optional
Enclosure Rating
IP65
Encoder Mounting
Compatible with HEDS 5600 series
Frame Size
NEMA 34
Holding Torque
830 oz‑in (5.86 Nm)
Motor Series
PowerPac Hybrids SIGMAX
Phase Inductance
1.2 mH at 1 kHz, 1 A
Phase Resistance
0.18 Ω (typical)
Rotor Stack
1‑rotor configuration
Shaft Extensions
Single or double
Shaft Type
Keyway or smooth
Torque Increase
Up to 25% (SIGMAX)
Torque Range (P21)
178–252 oz‑in (1.26–1.78 Nm)
Torque Range (Std)
79–111 oz‑in (0.55–0.78 Nm)
Winding Temp Limit
130°C
Winding Types
J, K, L, M

Frequently Asked Questions about 802D4280-B03K:

Q: What makes the 802D4280-B03K motor suitable for heavy-duty applications?

A: The motor generates a substantial holding force of 830 oz-in (5.86 Nm), making it highly efficient for heavy-duty applications due to its strong performance capabilities.

Q: What are the electrical characteristics of the 802D4280-B03K motor?

A: It features a phase resistance of 0.18 ohms and a phase inductance of 1.2 mH, meeting high-performance electrical standards for efficiency and reliability under load.

Q: How does the SIGMAX® Technology enhance the 802D4280-B03K motor's performance?

A: SIGMAX® Technology boosts the motor's performance, providing up to 25% more torque compared to standard models.

Q: What are the customization options available for the 802D4280-B03K motor?

A: The motor offers two wiring configurations (bipolar 4-lead or unipolar 6-lead), multiple winding choices (J, K, L, M), and various shaft styles, including single or double length extensions, keys, and smooth shaft options.

Q: What are the environmental protection features of the 802D4280-B03K motor?

A: Rated at IP65, the motor is designed to resist water splashes and can operate in harsh environments, withstanding temperatures up to 40°C. It also features an optional enhanced cooling system for reliable performance at high speeds.


Internal Product Review

  • ‘‘The Pacific Scientific 802D4280-B03K motor is a high-performance component of the POWERPAC HYBRIDS series. It is designed to handle demanding industrial applications with exceptional reliability and enhanced torque output.’’

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