20P41AD250RA0NNN

Overview of Allen Bradley PowerFlex 20P41AD250RA0NNN

The Allen Bradley PowerFlex 20P41AD250RA0NNN is a high-performance DC drive designed for demanding industrial automation applications. This variable speed drive provides precise speed and torque control for DC motors up to 150 HP. With a robust B frame construction and an IP20, NEMA/UL Type Open enclosure, the drive is engineered for reliability in a wide range of environments. It accepts 480 VAC, three-phase input and delivers up to 250 A of output current. The drive does not include a Human Interface Module (HIM), shipping instead with a blank plate. The PowerFlex DC drive also features conformal coating for added protection against dust, moisture, and contaminants. A factory user manual is included, but no communication module comes as standard. The drive supports four-quadrant operation including regenerative control, making it suitable for applications that require bidirectional motor performance.

Key Features of Allen Bradley PowerFlex 20P41AD250RA0NNN

• High output current – Supports up to 250 amps for demanding motor loads
• Four-quadrant operation – Enables both motoring and regenerative braking for dynamic control
• Rugged enclosure – IP20, NEMA/UL Type Open with conformal coating for industrial environments
• Powerful performance – Drives DC motors up to 150 HP (112 kW)
• Three-phase input – Compatible with 460/480 VAC, 3-phase power supplies
• B frame size – Compact, reliable design for easy panel mounting
• No HIM module – Ships with blank plate; optional HIM can be added
• No communication module standard – For basic control, with optional communication modules available
• Single-phase regulated field supply – Suitable for a wide variety of DC motors
• Includes user manual – Quick, professional installation and commissioning

Technical Specs of Allen Bradley PowerFlex 20P41AD250RA0NNN

Parameter	Value
Input Voltage	460/480 VAC, 3 Phase
Output Current	250 A
Motor Rating	150 HP (112 kW)
Input Type	6 Pulse
Operation	Four-Quadrant (Regenerative)
Enclosure	IP20, NEMA/UL Type Open, w/ conformal coating
Frame Size	B
Field Supply	Single Phase Regulated
Standard Accessories	User Manual, No HIM (Blank Plate)
Communication	No Module Included

Applications / Use Case

The Allen Bradley PowerFlex 20P41AD250RA0NNN DC drive is ideal for applications requiring high-precision and robust motor control. Common uses include industrial process automation, winders, extruders, centrifuges, and material handling systems. Its four-quadrant operation makes it a good fit for bidirectional drives and applications where regenerative braking is needed to recover energy. The drive is also suitable for retrofitting older DC motor installations, offering modern reliability and easy integration with existing controls. With its high output current, it can support heavy-duty DC motors, and its open enclosure is a practical choice for integration into control panels or industrial cabinets. Maintenance and installation are simplified with included documentation, and the drive’s flexibility allows for integration in both new and legacy automation systems.

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