Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | Allen-Bradley 25A-D043N114 |
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Product Type | AC Variable Frequency Drive (VFD) |
| Series | PowerFlex 523 |
| Input Voltage | 380 – 480V AC, 3-Phase, 50/60 Hz |
| Output Voltage | 0 – 480V AC, 3-Phase |
| Nominal Output Current | 43 A |
| Output Frequency Range | 0 – 500 Hz (Programmable) |
| Normal Duty Rating | 30 HP / 22 kW |
| Heavy Duty Rating | 25 HP / 18.5 kW |
| Motor Control Methods | Volts/Hertz, Sensorless Vector Control, Economizer Mode |
| Overload Capacity | 150% for 60s, 200% for 3s (Class 10 protection) |
| Efficiency | Typical 97.5% |
| Digital Inputs | 5 (Source/Sink configurable) |
| Digital Outputs | 2 (Form C relay, 3.0A @ 30V DC / 125V AC) |
| Analog Inputs | 1 (0-10V DC or 4-20mA) |
| Analog Outputs | 1 |
| Communication Interfaces | 1 x RS485 (Modbus RTU), 1 x USB |
| Brake Chopper | Integrated (Dynamic brake resistor optional) |
| Enclosure Rating | IP20 NEMA / Open Type |
| Frame Size | E |
| Dimensions (H x W x D) | 152 x 72 x 212 mm (5.98 x 2.83 x 8.35 in) |
| Mounting | Side-by-side with 50mm air-flow gap top/bottom |
| Operating Temperature | -10°C to 70°C (derating above 60°C) |
Main Features and Advantages
Innovative Modular Design with Removable Control Core: The Allen-Bradley 25A-D043N114 features a groundbreaking removable control core that allows the drive’s intelligence to be pre-configured offline and then quickly installed into the power chassis . This design dramatically reduces commissioning time and minimizes costly machine downtime during maintenance or replacement. The control core houses the HMI, I/O, and communication interfaces, enabling rapid swap-out without rewiring the power connections.
Flexible Motor Control for Diverse Applications: The 25A-D043N114 supports a comprehensive suite of motor control algorithms, making it adaptable to a wide array of load types . For simple fan and pump applications, the V/Hz mode with Economizer option delivers exceptional energy savings. For applications requiring tighter speed regulation and higher torque performance, the sensorless vector control mode provides superior dynamic response without the need for an encoder feedback device, making the PowerFlex 523 25A-D043N114 an excellent choice for conveyors, mixers, and hoists.
Extensive I/O and Communication Capabilities: The Allen-Bradley 25A-D043N114 is equipped with 5 digital inputs, 2 digital outputs, and 1 analog input/output, providing flexible connectivity for local control panels and external sensors . An integrated RS485 port with built-in Modbus RTU protocol enables easy integration into legacy automation networks, while the USB port provides direct PC-based programming through Rockwell’s Connected Components Workbench software, eliminating the need for a separate communication adapter .
Robust Protection and High Ambient Temperature Operation: The 25A-D043N114 incorporates comprehensive protective features including I²t motor overload protection, overvoltage, undervoltage, ground fault, and output phase loss detection . Its ability to operate in ambient temperatures up to 70°C (with current derating) and its compact Frame E design supporting side-by-side mounting with minimal clearance make the ideal for space-constrained control cabinets . The integrated EMC filter ensures compliance with electromagnetic compatibility standards, reducing installation complexity and external filtering costs.
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