Product Overview
The Allen-Bradley 25B-D043N114 is a compact, cost-effective adjustable frequency drive from the PowerFlex 525 series. It supports normal-duty power ratings of 30 Horsepower (22 kW) and heavy-duty ratings of 25 Horsepower (18.5 kW). With an output current rating of 43 Amps and a Size E frame, this drive is built to handle a wide range of motor control applications. It offers multiple control methods, including Volts/Hertz and Sensorless Vector Control, making it versatile for various industrial tasks.
Technical Specifications Breakdown
Key parameters for the 25B-D043N114 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Product Family | PowerFlex 525 Adjustable Frequency AC Drive |
| Input Voltage | 380-480VAC |
| Input Phase | 3-Phase |
| Output Voltage | 0-460VAC |
| Output Power | 22 kW (30.0 HP) normal; 18.5 kW (25.0 HP) heavy-duty |
| Enclosure Rating | IP20 / NEMA UL Open Type |
| Frame | B |
| Control Method | Volts/Hertz Control; Sensorless Vector Control |
| Built-in Communication Port | RS485; Ethernet |
| Optional Communication Protocols | ProfiBus; Ethernet; DeviceNet |
| Integrated Safety | Safe-Torque Off (STO) functionality |
| EMC Filter | Integrated |
Industry Applications
The 25B-D043N114 is suitable for standalone equipment and simple system integration. The drive's ability to handle both normal and heavy-duty loads ensures flexibility, whether you need consistent speed control or occasional high-torque performance. The integrated Safe-Torque Off (STO) function enhances safety during maintenance and emergency stops.
Installation & Setup Guidance
For optimal performance, mount the drive vertically (upright) on a flat surface. The drive supports zero stacking when installing multiple units, but allow about 20 inches of clearance at the top and bottom of each drive for proper airflow. The control and power modules are detachable, simplifying installation and service. Use the built-in RS485 and Ethernet ports for straightforward communication setup. For ungrounded distribution systems, the removable Metal Oxide Varistor (MOV) allows safe operation in such environments.
Maintenance & Reliability
Regular inspection is key to maintaining reliability. Check for dust accumulation on the cooling fins and ensure the ambient temperature stays within specified limits. The integrated EMC filter reduces electromagnetic interference, but periodic checks of all connections and the braking resistor are recommended. The drive's dual overload ratings (10% for 60 seconds normal duty, 150% for 3 seconds heavy-duty) provide robust protection against overcurrent conditions.

Compatibility & Integration
The PowerFlex 525 series offers flexible communication options. In addition to built-in RS485 and Ethernet, optional protocols like ProfiBus and DeviceNet allow seamless integration into existing automation networks. The drive supports various motor control methods, including permanent magnet motor control and closed-loop velocity vector control (with optional encoder card), enabling precise speed and position control. The analog inputs and outputs facilitate metering and coordination with other drives.
Selection Guide & Purchasing Advice
When selecting a drive, consider your motor's power rating and the required overload capacity. The 25B-D043N114 fits applications needing up to 30 HP normal duty or 25 HP heavy-duty. Verify the input voltage matches your facility's supply (380-480VAC, 3-phase). For availability and lifecycle status, contact AutoDCSTech. As a trusted supplier of industrial automation parts, AutoDCSTech can help you source this drive and provide expert advice. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 25B-D043N114 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
