Product Introduction
The Allen-Bradley 25B-E032N104 is a three-phase adjustable frequency drive from the PowerFlex 525 series. This unit provides an input voltage range of 525 to 600 Volts AC and an output voltage range of 0 to 575 Volts AC. It fits a Size E frame and comes with a standard interface module. For normal duty applications, it delivers 30 Horsepower (22 kilowatts); for heavy-duty applications, it delivers 25 Horsepower (18.5 kilowatts). The 25B-E032N104 drive is engineered to replace older drives with modern control capabilities, enhancing system reliability and performance.
Technical Specifications Breakdown
The table below lists the key specifications for the Allen-Bradley 25B-E032N104 drive. Every value is directly from the product documentation.
| Parameter |
Value |
| Manufacturer |
Rockwell Automation |
| Brand |
Allen-Bradley |
| Part Number |
25B-E032N104 |
| Series |
PowerFlex 525 Drive |
| Voltage (Three Phase) |
600 VAC |
| Output Current |
32 Amperes |
| Enclosure Type |
IP20 NEMA / Open Type |
| Interface Module |
Standard |
| Frame Size |
Frame E |
| EMC Filtering |
No Filter |
The drive supports a programmable output frequency range of 0 to 500 Hz with a frequency tolerance of 47 to 63 Hz. Voltage tolerance is +10% or -15%. These specs make the 25B-E032N104 suitable for demanding applications requiring fine speed control.
Industry Applications
The Allen-Bradley 25B-E032N104 drive excels in pump, fan, conveyor, and compressor applications. In a typical upgrade scenario, replacing an older fixed-speed motor controller with this drive yields energy savings of 20-30% through variable speed operation. For pump applications, closed-loop control maintains constant pressure while reducing mechanical stress. In heavy-duty environments such as mixers or crushers, the 25 Horsepower rating provides robust torque at low speeds. The multiple control modes—closed-loop velocity vector, sensorless vector, volts per Hertz, and permanent magnet motor control—allow seamless adaptation to various load profiles.
Compatibility and Network Integration
The Allen-Bradley 25B-E032N104 drive features an Ethernet/IP port and a DSI port. The DSI port supports a multi-drive network with up to five PowerFlex drives on a single node. This simplifies wiring and reduces system cost when retrofitting multiple drives in a production line. The standard HIM (Human Interface Module) includes a 16-segment LCD display and supports multiple languages, making commissioning straightforward. The I/O complement includes 7 digital inputs (6 programmable), 1 PTC input, 2 analog inputs (current and bipolar voltage), 2 transistor outputs, 2 programmable relay outputs (Form A and B), and 1 analog output.
Installation and Setup Guidance
Mount the Allen-Bradley 25B-E032N104 drive in a clean, well-ventilated area to ensure proper cooling. The IP20 enclosure requires no filter, but regular cleaning of the heatsink fins is recommended. Use the provided standard interface module for initial configuration. Connect power and motor wiring per the wiring diagram in the user manual. The Ethernet/IP port allows connection to a control network for remote monitoring and parameter adjustment. During setup, select the appropriate control mode (e.g., sensorless vector for general applications) and enter motor nameplate data. The drive automatically performs motor identification for optimal performance.
Selection Guide and Purchasing Advice
When selecting the Allen-Bradley 25B-E032N104 drive, verify that your motor's voltage and current ratings match the drive's capabilities. For normal duty applications, the drive handles up to 30 HP; for heavy-duty, it handles up to 25 HP. Ensure the input power supply matches the voltage range (525–600 VAC, three-phase). For multi-drive networks, confirm compatibility with other PowerFlex 525 units. PLC Source PRO stocks genuine Allen-Bradley drives and can provide technical support. Contact us to verify stock and lead times before placing your order.