Allen-Bradley 150-F970NBED SMC Flex Smart Motor Controller – 970 A, 800 Hp

Product Introduction

When heavy industrial motors demand precise starting and stopping control while minimizing electrical stress, the Allen-Bradley 150-F970NBED SMC Flex Smart Motor Controller provides a reliable solution. This soft starter, rated at 970 A and 800 Hp at 460 V AC, is designed to handle high-power applications with ease. Part of the SMC Flex series, it combines advanced motor protection with flexible control options, making it a cornerstone for modern automation systems.

Technical Specifications Breakdown

The 150-F970NBED offers a robust set of specifications tailored for demanding environments. Key parameters include:

Controller Rating: 970 A, 800 Hp at 460 V AC, ensuring ample capacity for large motors.

Control Voltage: 100–120 V AC, simplifying integration with standard control systems.

Operating Frequency: 50/60 Hz for the power circuit, providing flexibility across global installations.

Line Connected Motor Power: Maximum 800 Hp at 460 V AC, 60 Hz, 3-phase, and delta connected motor power up to 800 kW at 500 V AC, 50 Hz, 3-phase.

Integrated Motor Overload Protection: True, with trip classes 10, 15, 20, and 30, and trip current rating at 117% of motor FLC.

Transient Protection: Metal oxide varistors (220 J, optional) for the power circuit, safeguarding against voltage spikes.

Operating Temperature: Open: -5 to 50 °C (23 to 122 °F), suitable for typical industrial environments.

Enclosure: Open type with IP00 protection against electrical shock per IEC.

Weight: 224 kg, with dimensions of 596.9 mm width, 346.2 mm depth, and 1041.1 mm height.

Industry Applications

This controller excels in heavy-duty applications such as conveyors, pumps, compressors, and crushers. For example, in a mining conveyor system, the 150-F970NBED provides smooth acceleration and deceleration, reducing mechanical wear and preventing belt damage. Its SMB smart motor braking control, adjustable from 0 to 400% of motor full-load current, enables rapid stopping without additional braking equipment, ideal for emergency stops in material handling. In water treatment plants, the integrated overload protection and trip class selection ensure motors operate within safe thermal limits, extending equipment life.

Installation & Setup Guidance

Installation requires careful attention to power and control wiring. The controller accepts line/load side power terminals with two 13.5 mm diameter holes per power pole, and control terminals use M3 screw clamps. Ensure the control voltage supply (100–120 V AC) is stable and within tolerance. For delta-connected motors, configure the overload current setting to 400 A as specified. The device includes auxiliary contacts (19/20, 29/30, 31/32, 33/34) for status feedback, programmable as NO/NC. Mount the open-type enclosure in a clean, dry location with adequate ventilation, respecting the -5 to 50 °C operating temperature range.

Maintenance & Reliability

Routine inspections should focus on the heatsink and fan assembly, rated at 150 VA at 110/120 V AC or 220/240 V AC, to ensure proper cooling. The power pole construction uses a heatsink hockey puck thyristor modular design, which dissipates heat efficiently. Steady state heat dissipation is 812 W, so verify airflow around the unit. Check the DV/DT protection (RC snubber network) and transient protection (optional metal oxide varistors) periodically for signs of damage. Given the IP00 rating, protect the controller from dust and moisture. Regular testing of the integrated motor overload protection and trip classes helps maintain reliability in continuous operation.

Selection Guide & Purchasing Advice

Before purchasing the 150-F970NBED, verify that your motor's full-load current and voltage match the controller's ratings: line connected motor current 323–970 A at 600/Y/690 V AC, 3-phase, and delta connected current 400–1200 A at 500/575 V AC, 3-phase. Confirm the control voltage (100–120 V AC) and available fault current (up to 85 kA at 600 V or 690 V). For complete technical specifications, please contact BluePLC Industrial. Our team can assist with compatibility checks and provide current lifecycle status and availability.