Allen-Bradley 150-F251NBDB Smart Motor Controller | Drives

Allen-Bradley 150-F251NBDB SMC-Flex Smart Motor Controller

Technical Specifications

• Brand & Model: Allen-Bradley 150-F251NBDB (SMC-Flex Series, Bulletin 150).
• Input Voltage: 200-480 Volts AC.
• Enclosure Type: Open (requires external panel for protection).
• Display: Integrated LCD with front keypad.
• Operating Temperature: -5°C to 50°C (Open) / -5°C to 40°C (Enclosed).
• Storage Temperature: -20°C to 75°C.
• Max Altitude: 2000 Meters (6560 Feet).
• Humidity: 5 to 95% (non-condensing).
• Pollution Degree: 2.
• Weight: 61.00 lbs (27.67 kg).

Control & Starting Features

• The 150-F251NBDB offers seven distinct starting and stopping modes for precise motor management.
• Modes include Soft Start, Current Limit Start, Dual Ramp, and Full Voltage.
• It also provides Linear Speed Acceleration, Preset Slow Speed, and Soft Stop functions.
• The controller supports both standard squirrel-cage and Wye-Delta, six-lead motors.
• Control wiring is flexible, utilizing 2-wire or 3-wire configurations for different applications.
• An optional pump control feature is available for specialized fluid handling systems.

Protection, Diagnostics & Metering

• This SMC-Flex controller includes extensive protection against 15+ fault conditions.
• Key protections cover overload, underload, stall, jam, phase reversal, and voltage unbalance.
• It also guards against power loss, communication faults, and extreme temperature conditions.
• The LCD provides real-time metering for amps, volts, kilowatts, power factor, and motor thermal capacity.
• Users can monitor energy usage (kWh, MWh) and elapsed operating time directly.
• Four fully programmable auxiliary contacts offer flexibility for network or external bypass signals.

Installation & Environmental Guidelines

• Install the 150-F251NBDB inside a protective enclosure (panel) to ensure safety and meet environmental ratings.
• Ensure the operating ambient temperature stays within the specified -5°C to 50°C range for open installations.
• Do not operate the unit at altitudes exceeding 2000 meters (6560 feet).
• Maintain a non-condensing humidity level between 5% and 95%.
• For transportation and storage, keep the controller within -20°C to 75°C.

Frequently Asked Questions (FAQ)

• Is this controller new and in stock?
  Yes, we supply 100% new and genuine Allen-Bradley products. The 150-F251NBDB is typically available from our ready stock.
• What is the input voltage range for this model?
  This controller accepts a broad 3-phase input from 200 to 480 Volts AC.
• Does it support pump control applications?
  Yes, the 150-F251NBDB can be equipped with an optional pump control feature for specialized applications.
• What starting methods are available?
  It provides seven methods, including Soft Start, Full Voltage, and Current Limit Start for smooth motor operation.
• How soon do you ship, and what is your return policy?
  We process orders and ship within 5 business days via carriers like DHL, FedEx, or UPS. We offer a 30-day return policy for your confidence.

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