150-A35NB Allen Bradley

Description

Product Name: 150-A35NB  Allen Braley Processor module

Product details:  

The Allen-Bradley 150-A35NB is part of the SMC-2 (Smart Motor Controller) series manufactured by Rockwell Automation. It is a compact, solid-state controller designed to provide a smooth start for three-phase squirrel-cage induction motors, reducing mechanical stress and current surges.

1. Product Specifications

The model number breaks down into specific technical ratings:

• 150: Bulletin number (SMC-2 Smart Motor Controller).

• A: Controller Type (Standard).

• 35: Current Rating (35 Amperes).

• N: Enclosure Type (Open Type/IP00 – requires a separate cabinet).

• B: Input Line Voltage (400V – 480V AC, 3-Phase, 50/60 Hz).

Technical Data Table

2. Product Advantages

• Reduced Mechanical Wear: By controlling the torque during acceleration, it prevents “water hammer” in pumps and protects belts, gears, and bearings from sudden shocks.

• Compact Footprint: The SMC-2 design is significantly smaller than traditional Star-Delta or Autotransformer starters, saving panel space.

• Ease of Setup: Features simple DIP switches and rotary potentiometers for adjusting start time and initial torque, requiring no complex programming software.

• Energy Efficiency: Solid-state components reduce energy spikes during startup compared to Direct-On-Line (DOL) starting.

3. Key Features & Modes

• Soft Start: Gradually increases voltage to the motor over a timed period (typically 2 to 30 seconds).

• Current Limit: Limits the maximum starting current to a pre-set level to prevent tripping circuit breakers.

• Kickstart: Provides a brief pulse of high torque at the beginning of the start cycle to break loose high-friction loads.

4. Safety & Installation Precautions

• Heat Dissipation: As a solid-state device, it generates heat. Ensure the enclosure has adequate ventilation and observe the minimum clearance distances specified in the manual.

• Short Circuit Protection: Use the recommended high-speed (semiconductor) fuses or inverse-time circuit breakers to protect the internal SCRs (Silicon Controlled Rectifiers).

• Isolation: The SMC-2 is not an isolation device. You must use a separate disconnect switch or contactor to ensure the motor is electrically isolated during maintenance.

• Bypass Contactor: While not always required, using an external bypass contactor after the motor reaches full speed can reduce heat and extend the life of the controller.

5. Typical Applications

The 150-A35NB is ideal for light-to-medium industrial applications where a smooth start is required:

• Centrifugal Pumps: Prevents pressure surges and pipe vibration.

• Conveyor Belts: Avoids product tipping or belt snapping during abrupt starts.

• Fans and Blowers: Reduces the high starting torque that can damage drive belts.

• Compressors: Ensures a steady ramp-up to operating speed.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock.  If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
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