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Allen-Bradley 150-F251NBDB
by Allen-Bradley
Read verified buyer reviews ↓OverviewExperience peak motor efficiency and superior control with the Allen-Bradley 150-F251NBDB Series B SMC-Flex Smart Motor Controller. This robust soft starter is built for demanding industrial settings, supporting large motors up to 200 HP at 460V AC with a 251 amp rating. Its adaptable design accepts a 200–480V AC input and 100–240V AC control voltage, making it suitable for global electrical systems. The 150-F251NBDB features integrated pump control, optimized for fluid handling, irrigation, and wastewater systems. This open-type unit is panel-mountable, streamlining installation and maintenance in rigorous industrial environments. Achieve unparalleled motor protection, enhanced regulation, and significant energy savings with this advanced Allen-Bradley solution.Key Features High-Amperage SMC-Flex Control: Designed for smooth starting and stopping of substantial motors. Powerful Motor Applications: Rated for up to 251A, supporting motors from 100 HP to 200 HP at 460V AC. Integrated Pump Control: Advanced algorithm optimizes pump system performance and protection, minimizing water hammer and cavitation. Global Voltage Compatibility: Broad input (200–480V AC) and control (100–240V AC) voltage ranges cater to worldwide installations. Comprehensive Motor Protection: Guards against overload, locked rotor, stall, phase loss, and current unbalance, extending motor longevity. Compact & Flexible Design: Open enclosure and panel-mount setup simplify integration into existing control panels. Certified Reliability: UL, CSA, and CE certifications ensure adherence to international safety and performance benchmarks. Technical Specifications Brand: Allen-Bradley Series: Bulletin 150 SMC-Flex Smart Motor Controller Part Number: 150-F251NBDB Series: B Rated Current: 251 A Motor Power Rating: 100–200 HP @ 460V AC Input Voltage: 200–480V AC, 3-phase Control Voltage: 100–240V AC Frequency: 50/60 Hz Enclosure Type: Open Control Option: Integrated Pump Control Mounting Type: Panel Mount Condition: New Applications Water & Wastewater Management: Ideal for critical pump systems, reducing stress on mechanical components and pipelines. Industrial Irrigation Systems: Provides smooth starting and stopping for large pumps, conserving energy and minimizing surge. HVAC & Large Fan Systems: Ensures gentle acceleration and deceleration of high-inertia loads, enhancing system longevity. High-Power Conveyor & Compressor Systems: Reduces mechanical shock and electrical stress during startup, improving operational reliability. Specialized OEM Machinery: Perfect for original equipment manufacturers needing advanced, programmable motor control. Crusher & Grinder Operations: Manages high starting torque applications smoothly, protecting equipment from wear and tear. Why Choose Optimized Performance for Large Motors: Designed for high-horsepower applications, delivering unmatched control and safeguarding. Energy Efficiency & Cost Savings: Soft starting lessens inrush current and mechanical stress, leading to reduced energy consumption and extended equipment lifespan. Enhanced System Reliability: Extensive protective features minimize motor damage risk and unexpected downtime, ensuring continuous operation. Effortless Integration: The compact, open design and panel-mount capability facilitate quick and easy installation into existing or new control cabinets. Specialized Pump Control: Its integrated pump control offers a tailored answer for fluid management, preventing common issues such as water hammer. Order NowUpgrade your industrial motor control with the Allen-Bradley 150-F251NBDB. Contact us today to learn more and place your order.FAQWhat is the maximum motor power rating for the 150-F251NBDB?This soft starter is rated for motors up to 200 HP at 460V AC.Does this unit have integrated pump control?Yes, it features integrated pump control, specifically designed for fluid handling applications.What are the voltage compatibility ranges for this soft starter?It supports an input line voltage of 200–480V AC and a control voltage of 100–240V AC.
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Allen-Bradley 150-F251NBDB
Overview
This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Brand: Allen-Bradley
- Series: Bulletin 150 SMC-Flex Smart Motor Controller
- Part Number: 150-F251NBDB
- Series: B
- Rated Current: 251 A
- Motor Power Rating: 100–200 HP @ 460V AC
- Input Voltage: 200–480V AC, 3-phase
- Control Voltage: 100–240V AC
- Frequency: 50/60 Hz
- Enclosure Type: Open
- Control Option: Integrated Pump Control
- Mounting Type: Panel Mount
- Condition: New
Applications
- Water & Wastewater Management: Ideal for critical pump systems, reducing stress on mechanical components and pipelines.
- Industrial Irrigation Systems: Provides smooth starting and stopping for large pumps, conserving energy and minimizing surge.
- HVAC & Large Fan Systems: Ensures gentle acceleration and deceleration of high-inertia loads, enhancing system longevity.
- High-Power Conveyor & Compressor Systems: Reduces mechanical shock and electrical stress during startup, improving operational reliability.
- Specialized OEM Machinery: Perfect for original equipment manufacturers needing advanced, programmable motor control.
- Crusher & Grinder Operations: Manages high starting torque applications smoothly, protecting equipment from wear and tear.
Why Choose the 150-F251NBDB?
- Optimized Performance for Large Motors: Designed for high-horsepower applications, delivering unmatched control and safeguarding.
- Energy Efficiency & Cost Savings: Soft starting lessens inrush current and mechanical stress, leading to reduced energy consumption and extended equipment lifespan.
- Enhanced System Reliability: Extensive protective features minimize motor damage risk and unexpected downtime, ensuring continuous operation.
- Effortless Integration: The compact, open design and panel-mount capability facilitate quick and easy installation into existing or new control cabinets.
- Specialized Pump Control: Its integrated pump control offers a tailored answer for fluid management, preventing common issues such as water hammer.
Availability & Shipping
- ▸In stock: 150-F251NBDB ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 150-F251NBDB ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.