Allen-Bradley 150-C251NBD

Allen-Bradley 150-C251NBD SMC-3 Motor Controller / Soft Starter

Overview

The Allen-Bradley 150-C251NBD is a powerful SMC-3 solid-state motor controller engineered for reliable soft starting of 3-phase induction motors. With a current capacity of 251 amps and support for 480V line voltage, it is ideal for demanding industrial environments. The unit features a universal control voltage range of 100–240V AC and is designed with open-type construction for easy integration into control panels.

Key Features

• Rated Operational Current: 251 Amps

• Input Line Voltage: Up to 480V AC, 3-Phase, 50/60 Hz

• Control Voltage Range: 100–240V AC

• 3-Wire Control Configuration

• Open Type Construction

• Built-in motor overload and short-circuit protection

• Diagnostic LEDs for status and fault monitoring

• Compact footprint for panel-mounted applications

Technical Specifications

• Manufacturer: Allen-Bradley / Rockwell Automation

• Part Number: 150-C251NBD

• Series: SMC-3

• Rated Current: 251A

• Input Voltage: 200–480V AC

• Control Voltage: 100–240V AC

• Frequency: 50/60 Hz

• Control Type: 3-Wire

• Enclosure Type: Open (IP20)

• Mounting: Panel Mount

• Ambient Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Certifications: UL, CE, CSA, C-Tick

Applications

• High-inertia Fan Systems

• Large Water and Sewage Pumps

• Industrial Compressors

• Conveyor Drives

• HVAC Blower Motors

Benefits

• Minimizes mechanical wear with controlled start/stop

• Reduces energy demand during motor startup

• Simplifies integration with standard control systems

• Supported by Allen-Bradley’s global reliability and compatibility

Order with Confidence

The 150-C251NBD SMC-3 soft starter is in stock and ready to ship worldwide. Request your quote today.

Return to our SMC-3 – Smart Motor Controllers main category to explore all models and specifications in this family.

Visit our Allen-Bradley Industrial Automation Products master category for the complete range of controllers, drives, motors, HMIs, and accessories.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply