Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 25B-D4P0N104 |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Type | AC Drive / Variable Frequency Drive (VFD) |
| Product Series | PowerFlex 525 (catalog 25B) |
| Input Voltage | 380…480 V AC, 3-phase (range 323…528 V AC) |
| Input Frequency | 50/60 Hz |
| Output Current | 4.0 A continuous |
| Output Power | 1.5 kW / 2.0 Hp (Normal Duty and Heavy Duty) |
| Output Voltage | 0…460 V AC, 3-phase |
| Output Frequency | 0…500 Hz |
| Power Factor | 0.98 |
| Control Modes | V/Hz, Sensorless Vector Control, Closed-Loop Velocity Vector, PM motor, SynRm |
| Braking | Internal brake IGBT / dynamic brake chopper included |
| Safe Torque Off | Yes, certified PLd / SIL 2, Category 3 |
| Communication Interfaces | Embedded EtherNet/IP (dual port), USB, RS-485 (Modbus RTU) |
| Optional Communication | Dual EtherNet/IP, DeviceNet, Profibus DP |
| Digital I/O | 7 digital inputs, 2 optocoupler outputs, 1 N.O. + 1 N.C. relay output |
| Analog I/O | 2 analog inputs, 1 analog output (0–10 V / 0–20 mA) |
| User Interface | Integral keypad with potentiometer and LED display |
| EMC Filter | No internal filter (external filtering optional) |
| Enclosure Rating | IP20 / NEMA UL Type Open |
| Frame Size | Frame A |
| Mounting | Panel mount or DIN rail, Zero Stacking™ up to 45 °C |
| Operating Temperature | Up to 70 °C with current derating and control module fan kit |
| Power Dissipation | 80 W (typical at rated load) |
| Dimensions (H × W × D) | 152 × 72 × 172 mm (6.77 × 2.83 × 5.98 in) |
| Weight | Approx. 1.1 kg |
| Lifecycle Status | Active |
Main Features and Advantages
Embedded EtherNet/IP and fast commissioning: The Allen-Bradley 25B-D4P0N104 carries dual-port EtherNet/IP on board, so drives can be daisy-chained without an external switch and addressed directly from a Logix controller or a Connected Components Workbench project. The USB port lets a technician plug a laptop straight into the drive for configuration, parameter backup and firmware update, eliminating the dedicated programming cables that older drives required. A removable control core means power and motor wiring can be terminated and tested while the intelligence is still on the bench.
Motor control performance: The 25B-D4P0N104 supports V/Hz, sensorless vector control, closed-loop velocity vector control with encoder feedback, permanent magnet motor control and, from firmware revision 7.001, synchronous reluctance motor control. Sensorless vector mode delivers substantially better low-speed torque than plain V/Hz, which is what allows a conveyor or mixer to hold speed under a changing load without an encoder. With a 0.98 displacement power factor and 80 W typical losses, the drive also draws cleaner current from the supply than an uncorrected six-pulse converter.
Integrated safety and braking: Safe Torque Off is built in and certified to PLd / SIL 2 Category 3, removing rotational power from the motor without dropping control power, so a machine recovers quickly after an e-stop or interlock event rather than going through a full restart. A brake IGBT is included as standard, so deceleration energy can be absorbed by an external resistor without buying a separate chopper module.
Compact and serviceable design: Frame A construction, Zero Stacking™ mounting up to 45 °C, integral keypad with potentiometer and LED display, and comprehensive fault diagnostics make the Allen-Bradley 25B-D4P0N104 straightforward to install, commission and troubleshoot in dense panels.
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