Allen-Bradley 150-F43NBDB SMC Flex Smart Motor Controller / Soft Starter

Protect and optimize your mid-size motors. The Allen-Bradley 150-F43NBDB is a versatile smart motor controller (soft starter) from the SMC-Flex series. It provides smooth acceleration and deceleration for motors up to 30 HP, reducing stress and wear. Packed with advanced features like pump control and extensive diagnostics, the 150-F43NBDB is a smart choice for reliable motor management.

Detailed Technical Specifications

Manufacturer: Allen-Bradley (Rockwell Automation)

Series: SMC-Flex Smart Motor Controller

Model: 150-F43NBDB

Rated Output Current: 43 Amperes

Horsepower (HP) Rating: 30 HP (Line Connected @ 460V)

Input Line Voltage: 200-460V AC, 3-Phase, 50/60 Hz

Control Voltage: 100-240 V AC

Enclosure Type: Open (Must be installed in a protective panel)

Key Control Modes: Soft Start, Kickstart, Current Limit, Pump Control, Dual Ramp, Full Voltage, Soft Stop, Smart Braking

Programmable Contacts: 4 Fully-Programmable Auxiliary Contacts

Protection Features: Electronic Overload (Class 10/15/20), Stall/Jam, Voltage Unbalance, Phase Reversal, Ground Fault (with sensor)

Metering Parameters: Amps, Volts, kW, kWh, Power Factor, Motor Thermal Usage, Elapsed Time

Display: Integrated Backlit LCD with Keypad

Communication Port: DPI port for optional HIM (Human Interface Module)

Minimum Panel Size: 12" W x 16" H x 8" D (305mm x 406mm x 203mm)

Weight: 5.90 kg (13.00 lbs)

Installation & Application Guide

Mount the 150-F43NBDB inside a suitably sized industrial enclosure (NEMA-rated). Ensure minimum clearances for cooling. Connect the 3-phase power (200-460V AC) to the input terminals. Wire the motor to the output terminals. Connect the 100-240V AC control power. For pump applications, enable the dedicated pump control and anti-backspin timer in the settings. Use the built-in keypad or an optional HIM to configure start/stop parameters and protection settings.

Warranty Coverage

This Allen-Bradley controller is sold with a 12-month warranty, ensuring it is free from manufacturing defects upon delivery.

Expert FAQs for the 150-F43NBDB

What's the difference between "Soft Start" and "Current Limit" mode?

Soft Start provides a smooth, linear ramp-up of voltage to the motor. Current Limit holds the motor current at a set maximum (e.g., 250% FLA) until it reaches speed, useful for overcoming high breakaway torque.

How does the Pump Control function work?

It provides tailored soft start/stop curves to minimize water hammer in piping systems. The "anti-backspin" feature prevents a spinning pump from starting in reverse, protecting the impeller and seals.

Can I connect this to a Wye-Delta motor starter?

Yes, the 150-F43NBDB is compatible with standard squirrel-cage and six-lead Wye-Delta motors. Ensure you configure the controller for the correct motor connection type.

What does the "Smart Motor Braking" feature do?

It provides a controlled, faster stop than coasting by applying a controlled DC current to the motor windings, creating a holding torque to decelerate the load.

Is a separate overload relay required?

No. It has fully adjustable, electronic I²t overload protection with selectable trip classes (10, 15, 20), making external thermal overloads unnecessary.

Shipping Information
We ship in-stock items promptly. This product is delivered via FedEx, UPS, or DHL with full tracking provided.

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