Allen-Bradley 150-F970NBA SMC-Flex Solid State Controller, 970 A

Introduction

When a large motor application demands reliable starting and stopping without mechanical shock, the Allen-Bradley 150-F970NBA SMC-Flex solid state controller delivers. This non-combination smart motor controller from Rockwell Automation handles high-current loads up to 970 A, making it ideal for heavy industrial environments. With an open enclosure and integral bypass, it reduces heat generation while providing advanced monitoring and protection.

Technical Specifications

The 150-F970NBA operates on an input line voltage of 200-460V AC, 3-phase, 50 and 60 Hz. Its rated voltage matches this range at 200-460V AC. For control, it uses 230/240V AC (for 625-1250 A units). The controller rating is 970 A and 800 Hp at 460V AC. The enclosure type is open, and the unit weighs 32.00 lbs (14.51 kg).

Industry Applications

In pumping stations, conveyors, and crushers, the 150-F970NBA provides soft start and soft stop to reduce mechanical stress. Its dual ramp and current limit start modes protect both motor and driven equipment. The controller works with line or delta connected motors, making it versatile for retrofit or new installations. The integral bypass feature lowers heat dissipation, extending component life in continuous-duty applications.

Installation & Setup Guidance

Mount the 150-F970NBA in a clean, dry location with adequate ventilation. The open enclosure requires installation within a suitable cabinet to meet IP00 protection. Connect incoming 3-phase power to the line terminals and motor leads to the load terminals. Use the multilingual LCD display for programming start and stop times—adjustable from 0 to 30 seconds for soft start and 0 to 120 seconds for soft stop. Verify control voltage is 230/240V AC before powering the unit.

Maintenance & Reliability

Periodically inspect the controller for dust accumulation and loose connections. The integral bypass reduces thermal stress on internal components, improving long-term reliability. The built-in 220 Joules metal oxide varistor provides transient protection. For safety, always follow manufacturer guidelines when servicing. Regular inspection and testing according to the manufacturer's safety manual is recommended.

Buying Guide

Before purchasing the 150-F970NBA, confirm your motor's full-load current and horsepower rating. The controller supports 800 Hp at 460V AC and handles 970 A under light duty. Verify that your supply voltage matches the 200-460V AC range and that control power is 230/240V AC. For current availability and lifecycle status, contact BluePLC Industrial. We stock genuine Allen-Bradley SMC-Flex controllers and can help with replacement options if needed.