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Allen-Bradley 150-A68NB SMC-3 Soft Starter for industrial motor control

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Allen-Bradley 150-A68NB

by Allen-Bradley

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OverviewUpgrade your industrial operations with the Allen-Bradley 150-A68NB SMC-3, a sophisticated 3-wire, open-type solid-state motor controller built for precise motor initiation and cessation. This controller is ideal for demanding uses, offering an 85A current rating and compatibility with 480V 3-phase systems, making it an excellent choice for a variety of medium-scale motor applications needing accuracy and dependability. Its adaptable control voltage range of 100-240V AC ensures effortless integration into diverse industrial settings. The SMC-3 series is celebrated for its outstanding capabilities, incorporating vital functions such as overload safeguarding, gradual soft start, and synchronized stop features. These innovations substantially decrease mechanical strain and wear on your machinery, leading to smoother operational shifts and prolonged motor endurance. By eliminating the necessity for conventional contactors and overload relays, the 150-A68NB simplifies your system architecture, reduces intricacy, and boosts overall operational effectiveness.Key Features 85A Current Capability: Proficiently manages motors up to 85 amps, making it suitable for a broad array of medium-power industrial applications. 480V 3-Phase Compatibility: Optimized for use within rigorous 480V 3-phase power networks, ensuring wide applicability across numerous industrial configurations. Flexible Control Voltage: Operates effectively with a 100-240V AC control voltage span, delivering exceptional adaptability for varied electrical demands. Open Type Construction: Promotes superior airflow and cooling, making it perfect for environments where thermal regulation is crucial during continuous use. Advanced Solid-State Technology: Provides peak motor regulation with integrated gradual start and stop functionalities, significantly reducing mechanical degradation and assuring consistently seamless operation. Integrated Overload Protection: Guards your motors against excessive current, thereby increasing their longevity and bolstering the reliability of your entire motor infrastructure. Reduced Mechanical Degradation: Eliminates the requirement for external contactors and overload relays, leading to a significant reduction in mechanical wear and tear on your motor control system. Technical Specifications Product Series: Allen-Bradley SMC-3 Model Number: 150-A68NB Controller Type: 3-Wire, Open Type, Solid-State Motor Controller Current Capacity: 85 Amps System Voltage: 480V AC, 3-Phase Control Voltage: 100-240V AC Protection Features: Overload Protection Starting/Stopping Features: Soft Start, Soft Stop Mounting: Open Type (suitable for panel mounting within an enclosure) Application Suitability: Industrial Automation, Motor Control, HVAC, Material Handling Certifications: Consult Allen-Bradley documentation for specific regional and industry certifications. Applications Conveyor Systems: Delivers precise and gentle command for conveyor belts, lessening product damage and mechanical stress. Pumps & Fans: Excellent for governing industrial pumps and fans, guaranteeing efficient performance and extended equipment life. Compressor Systems: Optimizes compressor initiation and shutdown, minimizing wear and enhancing energy efficiency. HVAC Systems: A staple in heating, ventilation, and air conditioning applications for dependable regulation of fans, pumps, and other vital components. Material Handling: Boosts the efficiency and lifespan of automated machinery in material handling processes. General Industrial Automation: Applicable across a wide spectrum of industrial environments where smooth, regulated motor operation is essential. Why ChooseThis model offers a multitude of benefits for industrial applications. The solid-state design paired with soft start/stop capabilities dramatically reduces mechanical shock, thereby extending the operational life of your motors. By meticulously managing motor acceleration and deceleration, the SMC-3 minimizes initial current surges, which translates into lower energy consumption, ultimately saving on operational costs and contributing to a more sustainable industrial process.Order NowElevate your industrial processes with the Allen-Bradley 150-A68NB SMC-3. Contact us today to secure this advanced motor controller and enhance your system's efficiency and reliability.FAQWhat systems is the Allen-Bradley 150-A68NB designed for?This controller is specifically engineered for 480V 3-phase systems, providing reliable performance in a variety of industrial applications.What is the benefit of the soft start/stop feature?The soft start/stop function significantly reduces mechanical stress on motors and connected equipment, extending their lifespan and ensuring smoother operation.Can this controller be used in diverse electrical environments?Yes, its versatile control voltage range of 100-240V AC allows for flexible integration into many different industrial electrical setups.

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PRODUCT DETAILS

Allen-Bradley 150-A68NB

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:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. 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

  • Product Series: Allen-Bradley SMC-3
  • Model Number: 150-A68NB
  • Controller Type: 3-Wire, Open Type, Solid-State Motor Controller
  • Current Capacity: 85 Amps
  • System Voltage: 480V AC, 3-Phase
  • Control Voltage: 100-240V AC
  • Protection Features: Overload Protection
  • Starting/Stopping Features: Soft Start, Soft Stop
  • Mounting: Open Type (suitable for panel mounting within an enclosure)
  • Application Suitability: Industrial Automation, Motor Control, HVAC, Material Handling
  • Certifications: Consult Allen-Bradley documentation for specific regional and industry certifications.

Applications

  • Conveyor Systems: Delivers precise and gentle command for conveyor belts, lessening product damage and mechanical stress.
  • Pumps & Fans: Excellent for governing industrial pumps and fans, guaranteeing efficient performance and extended equipment life.
  • Compressor Systems: Optimizes compressor initiation and shutdown, minimizing wear and enhancing energy efficiency.
  • HVAC Systems: A staple in heating, ventilation, and air conditioning applications for dependable regulation of fans, pumps, and other vital components.
  • Material Handling: Boosts the efficiency and lifespan of automated machinery in material handling processes.
  • General Industrial Automation: Applicable across a wide spectrum of industrial environments where smooth, regulated motor operation is essential.

Why Choose the 150-A68NB?

This model offers a multitude of benefits for industrial applications. The solid-state design paired with soft start/stop capabilities dramatically reduces mechanical shock, thereby extending the operational life of your motors. By meticulously managing motor acceleration and deceleration, the SMC-3 minimizes initial current surges, which translates into lower energy consumption, ultimately saving on operational costs and contributing to a more sustainable industrial process.

Availability & Shipping

  • In stock: 150-A68NB 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-A68NB ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

This controller is specifically engineered for 480V 3-phase systems, providing reliable performance in a variety of industrial applications.

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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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.

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