Product Introduction
When industrial processes face power disturbances or motor overload conditions, the Allen-Bradley 25B-B2P5N104 PowerFlex 525 Adjustable Frequency AC Drive provides robust protection and precise motor control. This drive operates on 240VAC, 3-phase input and delivers 0.4 kW (0.5 HP) output power with a rated output current of 2.5 Amperes. The 25B-B2P5N104 integrates Safe-Torque Off (STO) functionality and features an IP20 NEMA/Open rated enclosure, making it suitable for a wide range of industrial environments.
Technical Specifications Breakdown
The Allen-Bradley 25B-B2P5N104 includes the following key parameters:
| Parameter |
Value |
| Output Current |
2.5 A |
| Input Voltage |
240VAC |
| Input Phase |
3-Phase |
| Output Voltage |
0-230VAC |
| Output Power |
0.4 kW / 0.5 HP |
| Enclosure Rating |
IP20 / NEMA UL Type Open |
| Control Methods |
V/Hz, Sensorless Vector Control, Closed Loop Velocity Vector, Permanent Magnet Motor Control |
| Integrated Safety |
Safe-Torque Off (STO) |
| Communication Ports |
EtherNet/IP, RS485 |
| Installation |
Panel Mount / DIN Rail |
| Frame Size |
Frame A |
The drive supports zero stacking and includes PointStop technology for precise stopping. Its built-in I/O comprises seven sink/source digital inputs, two digital/optocoupler outputs, two analog inputs (0-10VDC or 0-20mA), and one analog output. This configuration allows flexible wiring for remote start/stop, speed reference, and feedback signals.
Industry Applications
The Allen-Bradley 25B-B2P5N104 handles motor control for conveyors, pumps, fans, and compressors in manufacturing and material handling systems. For example, in a conveyor line, the drive's sensorless vector control maintains constant torque across speed ranges, while the integrated overload protection (NEC Class 10) prevents motor damage during jams. The drive can ride through 100 ms of power loss to avoid nuisance trips.
Installation & Setup Guidance
Mount the Allen-Bradley 25B-B2P5N104 on a panel or DIN rail within its -20 to 50°C operating range. Ensure adequate clearance for ventilation. The IP20 enclosure allows use in clean, dry environments. Wire the 3-phase input to L1, L2, L3 and the motor to U, V, W. Use the embedded LCD and buttons for initial configuration. For remote control, connect start/stop signals to the digital inputs and assign speed reference via analog input or Ethernet/IP.
Compatibility & Integration
The built-in EtherNet/IP and RS485 ports enable seamless integration into Rockwell Automation architectures and other PLC systems. Use EtherNet/IP for fast data exchange, remote monitoring, and control from a central controller. The RS485 port supports multi-drop configurations for larger systems. The drive's analog I/O can interface with legacy PLC analog modules. The STO function complies with safety standards for safe machine maintenance.
Selection Guide & Purchasing Advice
Before purchasing the Allen-Bradley 25B-B2P5N104, verify your motor's full-load current does not exceed 2.5 A and the supply voltage matches 240VAC 3-phase. The drive has no internal EMC filter; an external filter may be needed in sensitive installations. PLC Source PRO stocks this drive as a genuine Rockwell Automation product. For any queries, contact our technical team to ensure compatibility with your application.