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Product Introduction
The Allen-Bradley 150-C3NBR SMC-3 Smart Motor Controller is a compact solid-state soft starter designed for small three-phase induction motors. As part of the SMC-3 series, it provides a simple and economical solution for managing motor startup and stopping, helping reduce mechanical stress and electrical disturbances.
This controller gradually increases motor voltage during startup, avoiding sudden torque shocks and high inrush currents that are typical with direct-on-line starting. It is especially suitable for light-duty applications where reliable performance and space-saving design are important.
With built-in overload protection, integral bypass, and basic diagnostics, the 150-C3NBR ensures stable motor operation while protecting both the motor and connected equipment. Its open-type structure allows for flexible installation inside control panels.
Product Specifications
| Parameter | Description |
|---|---|
| Model | 150-C3NBR |
| Manufacturer | Allen-Bradley |
| Product Type | SMC-3 Smart Motor Controller (Soft Starter) |
| Rated Current | 3 A |
| Input Line Voltage | 200 – 460 V AC, 3-Phase |
| Frequency | 50 / 60 Hz |
| Control Voltage | 24 V AC/DC |
| Control Method | Solid-state control |
| Enclosure Type | Open Type |
| Motor Type | Three-phase induction motor |
| Starting Method | Soft start / soft stop |
| Bypass Feature | Integral bypass included |
| Protection Features | Overload protection, diagnostics |
| Application Role | Motor starting and stopping control |
| Dimensions | 139.7 × 44.8 × 100 mm |
| Weight | 0.86 kg |
Applications
• Small pump systems
Ensures smooth startup, reducing hydraulic stress and extending service life.
• Fans and ventilation equipment
Provides gradual acceleration, minimizing wear on mechanical components.
• Light-duty conveyors
Prevents sudden movement and improves handling stability.
• Packaging machinery
Supports controlled motor operation in compact automation systems.
• General-purpose motor control
Ideal for low-power applications requiring simple and reliable soft starting.
Advantages
• Compact and space-saving
Designed for installations where panel space is limited.
• Reduced inrush current
Helps protect electrical systems by limiting startup current spikes.
• Improved equipment lifespan
Minimizes mechanical stress during motor startup and stopping.
• Built-in protection
Provides overload protection and basic diagnostics for safer operation.
• Energy-efficient operation
Integral bypass reduces heat loss after startup.
• Cost-effective solution
Offers essential motor control functions without unnecessary complexity.
