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Allen-Bradley 150-F251NBR Soft Starter Motor Controller

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About the Product

Allen-Bradley 150-F251NBR SMC-Flex Smart Motor Controller

Key Technical Specifications and Features

  • The 150-F251NBR controller handles an input line voltage of 200-460V AC, 3-phase, 50/60 Hz.
  • It provides a control voltage of 24V AC/DC for flexible integration into control systems.
  • This SMC-Flex controller supports multiple operating modes for optimal performance.
  • Choose from Soft-start, Linear Ramp, Current Limit, Dual Ramp, Full Voltage, Soft Stop, or Preset Slow Speed.
  • For line-connected motors, its output current range is 84-251 Amperes.
  • This corresponds to a power rating of 75-251 HP at 60 Hz.
  • With delta-connected motors, the output current range increases to 145-435 Amperes.
  • The power rating for delta connection is 150-350 HP at 60 Hz.
  • The controller rating is a robust 251 Amperes and 200 HP at 460V AC.
  • An integrated Human Interface Module allows for easy setup and monitoring.
  • The device offers comprehensive motor and system protection features.
  • It guards against overloads, jams, stalls, voltage unbalance, and phase reversal.
  • Advanced diagnostics monitor for power loss, underload, and communication faults.
  • Four fully programmable auxiliary contacts provide flexible control signaling.

Metering, Communication & Installation Details

  • The built-in metering function displays key operational parameters in real-time.
  • You can monitor amps, volts, kW, kWh, power factor, and motor thermal usage.
  • Front panel LED indicators clearly show status: Stopped, Starting, At Speed, or Fault.
  • The unit includes one DPI port for an optional external Human Interface Module.
  • A second DPI port is available for adding communication expansion modules.
  • This smart motor controller features an open-type enclosure for panel mounting.
  • The device has a substantial weight of approximately 66 lbs (30 kg).
  • We ship the unit securely packaged to prevent any transit damage.
  • Our standard packaging includes the controller unit and the integrated HIM module.
  • We ship globally using reliable carriers like FedEx, UPS, and DHL.
  • Installation requires a qualified electrician following local codes and the manual.

Frequently Asked Questions (FAQ)

  • Q: Is the Allen-Bradley 150-F251NBR brand new and original?
    A: Yes, we supply only new and original Allen-Bradley products.
  • Q: What motors are compatible with this SMC-Flex controller?
    A: It works with standard squirrel-cage or six-lead Wye-Delta induction motors.
  • Q: What is the operating voltage range for the 150-F251NBR?
    A: It operates on 3-phase line power from 200V to 460V AC, 50/60 Hz.
  • Q: Do you have this motor controller in stock for immediate shipment?
    A: Yes, we have stock available. We typically ship within 5 business days after order confirmation.
  • Q: What logistics options are available for delivery?
    A: We use common global carriers like DHL, FedEx, and UPS for reliable shipping.
  • Q: What is your return policy for this product?
    A: We offer a 30-day return policy from the date of delivery for unused items.

For more information on the 150-F251NBR or other SMC-Flex controllers, please contact us.

© 2025 NexAuto Technology Limited. All rights reserved.
Original Source: https://www.nex-auto.com/
Contact: sales@nex-auto.com
Phone: +86 153 9242 9628

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  • Warranty: NexAuto offers a 12-month warranty on all parts purchased from us, in addition to any manufacturer coverage.
  • Returns: 30-day return policy for defective or mismatched parts, ensuring peace of mind.
  • Payment: Flexible options including major credit cards, PayPal, and bank transfers.
  • Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.
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