Product Overview
The 150-F135NCRD is a Bulletin 150 solid state controller from Allen-Bradley's SMC Flex family. It is an open enclosure type, rated for 135 A continuous current, supporting motors from 25 to 100 Hp at 460V AC. The controller accepts an input line voltage of 200...600V AC, three-phase, 50/60 Hz, and operates on a control voltage of 24V AC/DC. A key feature is the integrated braking control option, which allows for controlled deceleration of loads.
Technical Specifications Breakdown
Key parameters for the 150-F135NCRD are listed below for quick reference:
| Feature | Specification |
|---|---|
| Controller Type | Bulletin 150, Solid State Controller |
| Enclosure Type | Open |
| Continuous Current Rating | 135 A |
| Motor Power Range | 25...100 Hp @ 460V AC |
| Input Line Voltage | 200...600V AC, 3-Phase, 50/60 Hz |
| Control Voltage | 24V AC/DC |
| Control Options | Braking Control |
Industry Applications
In conveyor systems, the braking control option reduces coasting time, improving throughput and safety. For pumps and fans, the solid-state design minimizes water hammer and duct pressure surges. The wide input voltage range (200...600V AC) makes it suitable for global installations with varying line conditions. The 135 A rating supports medium-sized motors, common in HVAC, material handling, and wastewater treatment plants.
Installation & Setup Guidance
Mount the controller in a clean, dry location with adequate airflow. Since the enclosure is open type, install it inside an appropriate electrical panel to protect against dust and debris. The control voltage is 24V AC/DC; ensure the power supply matches this requirement. Note that a separate 120V or 240V single-phase supply is needed for fan operation. Connect the three-phase input line voltage (200...600V AC) through proper disconnecting means. Follow all local electrical codes and the manufacturer's wiring diagrams.
Maintenance & Reliability
Periodically inspect the controller for signs of overheating, such as discolored terminals or damaged components. Keep the heat sink fins clean and free of obstructions to ensure proper thermal dissipation. Verify that all power connections remain tight, as loose connections can cause arcing and failure. The solid-state design inherently reduces mechanical wear compared to electromechanical starters, but environmental factors like humidity and vibration should be monitored.
The Evolution of Motor Control: Why the 150-F135NCRD Matters
Industrial motor control has evolved from simple electromechanical starters to intelligent solid-state systems that optimize performance and reduce wear. The Allen-Bradley 150-F135NCRD SMC Flex open smart motor controller represents this shift, offering precise control for three-phase induction motors in demanding applications. As facilities seek to minimize downtime and energy consumption, this controller provides a robust solution for managing starting currents and implementing braking functions.

Selection Guide & Purchasing Advice
When selecting the 150-F135NCRD, confirm that your motor's full-load current does not exceed 135 A and that the supply voltage falls within the 200...600V AC range. The braking control option is valuable for applications requiring rapid, controlled stops. AutoDCSTech stocks this controller and can assist with availability and lifecycle status. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 150-F135NCRD |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
