A-B 25B-B011N104 PowerFlex 525 Drive

Allen-Bradley 25B-B011N104 PowerFlex 525 AC Drive

 

 

The Allen-Bradley 25B-B011N104 is a PowerFlex 525 variable frequency drive (VFD) used to control 3-phase AC motor speed, torque, and direction. It belongs to the 240V class PowerFlex 525 series and is commonly used in conveyors, pumps, fans, and general industrial machines.

Key Specifications

• Model: 25B-B011N104
• Series: PowerFlex 525
• Brand: Allen-Bradley (Rockwell Automation)
• Type: AC Variable Frequency Drive (VFD)
• Input Voltage: 200–240 VAC, 3-phase
• Output Current: 11 A
• Power Rating: 2.2 kW (3 HP)
• Frame Size: B
• Enclosure: IP20 (open type, panel mount)
• Control Modes:
  • V/Hz control
  • Sensorless vector control
  • Permanent magnet motor control
• Communication:
  • Built-in EtherNet/IP
  • Modbus RTU (RS-485)
  • USB programming port
• Safety Function:
  • Safe Torque Off (STO, SIL2 / PLd Cat 3)

What it does (simple explanation)

AC Power (240V 3-phase)
↓
PowerFlex 525 Drive (25B-B011N104)
↓
Adjusts frequency & voltage
↓
Controls motor speed and torque

It allows an AC motor to:

• Run at variable speeds
• Start/stop smoothly (soft start)
• Reverse direction
• Reduce energy consumption
• Improve process control accuracy

Main Functions

• Motor speed control (0–500 Hz output)
• Torque control for load stability
• Soft start / soft stop
• PLC communication via EtherNet/IP
• Built-in motor protection (overload, fault detection)
• Basic PID process control for automation loops

Key Features

• Compact “all-in-one” VFD design
• Integrated Ethernet communication (no extra module needed)
• Safe Torque Off (STO) safety function
• USB setup and commissioning
• High efficiency and fast response control
• Suitable for harsh industrial environments (up to ~70°C)

Applications

• Conveyor systems
• Pumps and fans
• Packaging machines
• HVAC systems
• Material handling
• General industrial automation