The Allen-Bradley 150-F970NBA is a high-power SMC-Flex smart motor controller engineered for demanding industrial automation applications. This solid-state controller delivers robust starting and stopping control for motors up to 800 HP, with a rated current of 970 A at 460V AC. Designed for line or delta connected motors, the 150-F970NBA combines advanced protection, monitoring, and communication capabilities in an open-style enclosure.
Product Overview
The Allen-Bradley 150-F970NBA belongs to the SMC-Flex series (Bulletin 150-F), a family of non-combination smart motor controllers known for their flexibility and reliability. This model features an integral bypass that reduces heat generation, extending component life and improving energy efficiency. With a wide input voltage range of 200-460V AC (3-phase, 50/60 Hz) and a control voltage of 230/240V AC, it adapts to various industrial power systems.
Key Features & Benefits
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Integral Bypass: Reduces heat, improving longevity and lowering energy costs.
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Multilingual LCD Display: Simplifies programming and real-time monitoring.
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Advanced Protection: Current and voltage safeguards enhance troubleshooting and uptime.
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Multiple Operating Modes: Dual ramp, full voltage, current limit start, soft start/stop, linear speed acceleration, and preset slow speed.
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Transient Protection: Built-in 220 Joules metal oxide varistor (MOV) shields the controller from voltage spikes.
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DPI Port: Enables connection to a user-supplied HMI or external communication modules.
Technical Specifications
| Parameter |
Value |
| Manufacturer |
Allen Bradley |
| Category |
Drives |
| Product Line |
SMC-Flex |
| Part Number |
150-F970NBA |
| Weight |
32.00 lbs (14.51 kg) |
| Bulletin Number |
Solid State Controller |
| Enclosure Type |
Open |
| Controller Rating |
970 A, 800 Hp at 460V AC |
| Input Line Voltage |
200-460V AC, 3-phase, 50 and 60 Hz |
| Control Voltage |
230/240V AC (625-1250 A units) |
| Rated Voltage |
200-460V AC |
Industry Applications
This controller suits heavy-duty applications such as conveyors, pumps, fans, compressors, and industrial machinery. For example, in a mining conveyor system, the 150-F970NBA ensures smooth soft starts that reduce mechanical stress and prevent belt slippage. In a water treatment plant, its precise soft stop minimizes water hammer, protecting pipelines and valves.
Installation & Setup Guidance
Mount the 150-F970NBA in a clean, dry, and well-ventilated area to maintain proper airflow. Ensure the enclosure is open type, meaning it requires installation in a suitable cabinet or panel for protection. Follow local electrical codes and verify that the line voltage matches the controller's rated input. Connect the motor and control wiring according to the wiring diagram provided in the manual, and set the operating parameters using the LCD interface.
Maintenance & Reliability
Routine inspection every 6-12 months is recommended to check for dust accumulation, loose connections, and signs of overheating. Because the integral bypass reduces heat, thermal stress on components is minimized, extending service life. The MOV provides transient protection, but periodic checks of the protection circuitry ensure continued reliability.
Compatibility & Integration
The 150-F970NBA integrates seamlessly with Allen-Bradley control systems and other industrial networks via the DPI port. This allows connection to a user-supplied HMI or external communication modules, enabling remote monitoring and control. It also provides status indication for motor stopped, stopping, starting, and at speed, plus fault indication for rapid diagnostics.
Selection Guide & Purchasing Advice
Before purchasing, verify that the controller's current rating (970 A) and horsepower rating (800 HP at 460V AC) match your motor requirements. Confirm the input voltage (200-460V AC) and control voltage (230/240V AC) are compatible with your facility. Consider the enclosure type—open style requires a suitable cabinet for protection. For a reliable source, PLC Source PRO offers genuine Allen-Bradley parts with fast shipping.