Allen-Bradley 150-F251NBD SMC-Flex Motor Controller

Allen-Bradley 150-F251NBD SMC-Flex Smart Motor Controller

Core Technical Specifications

• The Allen-Bradley 150-F251NBD provides a rated current output of 251 amperes.
• It requires an input line voltage of 200-575V AC, 3-Phase, 50/60 Hz.
• The control voltage is 100 to 240V AC.
• Its power rating is 250 HP at 575V AC for line connection.
• For Delta connection, it supports 350 HP at 460V AC.
• This controller features an open enclosure design for proper panel mounting.
• It has a programmable contact configuration of 1NO and 1NC.

Key Features & Protection

• This SMC-Flex controller functions as an advanced soft starter for motors.
• It contains built-in electronic motor overload protection for enhanced safety.
• The module includes an SCR bypass/run contactor for reliable operation.
• It offers ground fault detection capabilities for trip or alarm functions.
• For ground fault detection, users must install an external sensor with the controller.
• The device helps manage excessive current and torque during motor starting.

Installation & Operating Requirements

• Installers must follow all static control precautions during setup.
• Maintain the operating temperature between 0 and 50 degrees Celsius.
• Mount the controller to allow for adequate cooling, possibly with an additional fan.
• This 3-phase module operates within a voltage range of 200 to 480V AC.
• The 150-F251NBD has a contact rating of 75 to 250 kW at 50 Hertz.

Frequently Asked Questions (FAQ)

• Q: What is the horsepower rating of the 150-F251NBD?
  A: The Allen-Bradley 150-F251NBD is rated for 250 HP at 575V AC in line connection.
• Q: Does this controller include overload protection?
  A: Yes, it features built-in electronic motor overload protection.
• Q: Are your products genuine and new?
  A: Absolutely. We sell only authentic, brand new Allen-Bradley controllers.
• Q: What is your shipping and return policy?
  A: We ship within 5 days via major carriers and offer a 30-day return guarantee.
• Q: What voltage does this SMC-Flex controller accept?
  A: It accepts 200-575V AC, 3-phase input with 100-240V AC control voltage.

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