Application Scenarios
In a beverage bottling plant, the packaging line relied on more than thirty small 0.75 kW conveyor motors that required synchronized speed control to prevent bottle jams during high-speed filling. The plant’s control cabinet had limited space, and the engineering team needed a drive that could mount densely while integrating seamlessly with the existing ControlLogix PLC over EtherNet/IP. After deploying the 25B-V4P8N104-A across all conveyor zones, the drive’s Zero Stacking capability—requiring only 50 mm of airflow clearance top and bottom—allowed 24 drives to fit into a single compact enclosure that previously housed only 14 legacy drives. The built-in EtherNet/IP port enabled each 25B-V4P8N104-A to appear as a node on the industrial network, giving operators centralized speed adjustment and real-time fault monitoring without any additional communication cards. During line clearance for jam removal, the 25B-V4P8N104-A‘s Safe Torque Off function provided a safety-rated motor disconnect, protecting maintenance staff and eliminating the need for external safety contactors. For OEMs and end users building modern, networked automation systems, the 25B-V4P8N104-A is not just a drive—it is the foundation of smart, safe, and space-efficient motor control.
Parameter
| Main Parameters | Value / Description |
|---|---|
| Product Model | 25B-V4P8N104-A |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Family | PowerFlex 525 Series |
| Product Category | Adjustable Frequency AC Drive (VFD) |
| Lifecycle Status | Active |
| Input Voltage | 100–120 V AC, 1-Phase (85–132 V range) |
| Input Frequency | 50–60 Hz |
| Output Voltage | 0–230 V AC, 3-Phase |
| Rated Power | 0.75 kW / 1 HP (Normal Duty & Heavy Duty) |
| Output Current | 4.8 A |
| Power Factor | 0.98 |
| Brake IGBT | Included |
| Total Power Loss | 53 W |
| Control Methods | Volts per Hertz (V/Hz), Sensorless Vector Control (SVC), Closed-Loop Velocity Vector, Permanent Magnet Motor Control |
| Communication | Embedded EtherNet/IP, USB Programming Port |
| Safety Function | Safe Torque Off (STO), SIL2 / PLd Cat 3 certified |
| User Interface | Integral Keypad with Potentiometer & LED Display |
| Discrete Inputs | 7 (sink/source configurable) |
| Discrete Outputs | 2 solid-state + 1 relay (N.O. + N.C.) |
| Analog Inputs | 2 × (0–10 V DC / 0–20 mA) |
| Analog Output | 1 × (0–10 V DC / 0–20 mA) |
| Frame Size | Frame B |
| Dimensions (H×W×D) | 172 × 152 × 72 mm |
| Weight | 2.0 kg |
| Protection Rating | IP20 / NEMA Type Open |
| Mounting | Panel Mount / DIN Rail, Zero Stacking supported |
| Operating Temperature | Up to 50 °C (122 °F); up to 70 °C with control module fan kit & derating |
| Certifications | CE, UL, CSA, UKCA, SIL2/PLd Cat 3 |
| Filter Option | No Filter (N104 suffix) |
| Standard Warranty | 1 Year |
Technical Principles and Innovative Values
- Innovation Point 1 – Modular Control Core Architecture: The 25B-V4P8N104-A features a removable control module that separates from the power module. This innovation allows installation and software configuration to proceed simultaneously—electricians mount the power module in the cabinet while engineers pre-configure the control core on the bench via USB. The result: 40% faster commissioning compared to monolithic drive designs.
- Innovation Point 2 – Embedded EtherNet/IP with CIP: Unlike competitor drives in the same power class that require optional add-on cards, the 25B-V4P8N104-A ships with a factory-installed EtherNet/IP port. The drive becomes an instant node on the industrial network, supporting implicit messaging, explicit CIP commands, and seamless integration into Rockwell’s Logix architecture. Optional dual-port EtherNet/IP supports Device Level Ring (DLR) topology for network redundancy.
- Innovation Point 3 – Integrated Safe Torque Off (STO): The 25B-V4P8N104-A incorporates an SIL2/PLd Cat 3 certified STO function that internally disables the power transistors upon a safety demand. This eliminates motor rotation without removing power from the drive, enabling faster restart after maintenance while eliminating the cost and wiring complexity of external safety contactors.
- Innovation Point 4 – USB Programming Without Mains Power: A standard mini-B USB port on the control module allows full parameter configuration using Connected Components Workbench (CCW) software—no 120V applied, no special adapters. Engineers can clone a validated configuration and push it to dozens of 25B-V4P8N104-A drives in minutes, ensuring consistency across an entire production line.
- Innovation Point 5 – Comprehensive Motor Control Portfolio: The 25B-V4P8N104-A supports Volts/Hertz, Sensorless Vector Control (SVC), Closed-Loop Velocity Vector, and Permanent Magnet Motor Control in a single drive. AppView™ application-specific parameter sets and CustomView™ configuration storage further accelerate setup for conveyors, pumps, fans, and mixers.
- Innovation Point 6 – Zero Stacking & High-Temperature Operation: The drive’s thermal design permits side-by-side Zero Stacking with only 50 mm top/bottom clearance. With the optional control module fan kit, the 25B-V4P8N104-A operates reliably up to 70 °C (158 °F) ambient—making it suitable for hot plant environments such as steel mills, foundries, and boiler rooms without additional cabinet cooling.
- Innovation Point 7 – Economizer Mode for Energy Savings: The built-in Economizer function monitors real-time current demand and automatically refines operating parameters, optimizing motor energy consumption. In a typical HVAC fan application, this translates to 15–25% energy reduction during partial-load operation.
