Overview
The Allen-Bradley 25B-D1P4N104 PowerFlex 525 AC drive delivers reliable, compact variable frequency control for small motors in industrial machinery. Rated at 0.5 HP (0.4 kW) output with 480V 3-phase input, this Frame A drive combines modular construction with embedded EtherNet/IP communication for seamless integration into modern automation systems. Whether for standalone machine control or networked applications, the 25B-D1P4N104 simplifies configuration and reduces panel space while maintaining full Rockwell Automation compatibility.
Key Features
- Embedded EtherNet/IP and Safety: Native network connectivity with integrated safety functions (Safe Torque Off, SIL 2, Cat 3) for DeviceNet, PROFIBUS, and MODBUS protocols.
- Multiple Control Modes: Supports volts-per-hertz, sensorless vector control, and closed-loop velocity vector for diverse motor types including permanent magnet motors.
- Dynamic Braking & Position Control: Integral brake transistor with low-cost external resistors; PointStop and point-to-point positioning without encoder feedback.
- Low-Voltage Ride-Through: Selectable 1/2 line and 1/2 DC bus operation for brownout and low-voltage scenarios; enhanced inertia ride-through.
- Modular, Compact Design: Frame A housing with optional RS4/DSI and dual-port EtherNet/IP cards; local control via integrated keypad and LCD or remote hardwired I/O.
Technical Specifications
The 25B-D1P4N104 is engineered for reliable small-motor control with the following performance characteristics:
Electrical
- Input Voltage: 323–528 VAC 3-phase (380–480V nominal, ±15% to +10% tolerance)
- Input Current: 1.9 A typical; fusing: 3–6 A per IEC/UL requirements
- Output Voltage: 0–460 VAC 3-phase
- Output Current: 1.4 A rated
- Power Output: 0.5 HP (0.4 kW) normal and heavy duty
- Frequency: 50/60 Hz
- Power Loss: 27.0 W typical
Physical & Enclosure
- Frame Size: A (compact)
- Enclosure Type: IP20, NEMA 1 / Open (no integral filter)
- Connection: Fixed terminal block
- Mounting: Panel-mount
Typical Applications
The PowerFlex 525 25B-D1P4N104 is ideal for light to medium-duty machine control, including:
- Small pump and fan motors with speed regulation
- Conveyor systems and material handling equipment
- Machine tool spindles and auxiliary drives
- Packaging machinery and automated assembly lines
- HVAC and refrigeration system compressors
- General-purpose industrial motion control
Compatibility & Replacements
The 25B-D1P4N104 integrates natively with Rockwell Automation Studio 5000 and CompactLogix/MicroLogix systems via EtherNet/IP. It replaces earlier-generation PowerFlex drives in the same power class and pairs with Allen-Bradley 100-C09 IEC-rated motor contactors (3-phase, 2 HP @ 230V, 5 HP @ 460V). Optional communication modules (RS4/DSI, dual-port EtherNet/IP DLR) are separately detachable for flexible installation. Recommended protective devices include 140M-C2E-B25 circuit breakers and CLASS RK5/CC/J/T fuses per UL or IEC applications.
