Overview
The Allen-Bradley 150-C16NBD is an SMC-3 series smart motor controller engineered for reliable, efficient motor control in industrial automation applications. This solid-state starter provides advanced soft-start functionality, multiple operating modes, and comprehensive motor protection in an open-type enclosure. The 150-C16NBD handles 16-amp output current with input line voltages from 200–480V AC, 3-phase, 50/60 Hz, making it compatible with standard industrial power systems.
Key Features
- Five selectable start/stop modes: soft start, soft stop, coast-to-rest, current-limit start, and kickstart
- Built-in silicon-controlled rectifier (SCR) bypass/run contactor for efficient motor transitions
- Electronic motor overload protection with rotary FLA adjustment
- Phase loss, phase reversal, and phase imbalance protection
- LED status indicator showing RUN, OFF, and fault codes via flash patterns
- DIP switches for quick START/STOP profile and configuration setup
- Test button for on-board controller diagnostics
- Works with line and delta-connected 3-phase motors
Technical Specifications
- Electrical Input: 200–460V AC (480V nominal), 3-phase, 50/60 Hz
- Control Voltage: 100–240V AC, 50/60 Hz
- Output Current Rating: 16 Amperes (range: 5.3–16A adjustable)
- Motor Power Range: 1.5–10 HP depending on line voltage and starting duty
- Enclosure Type: Open
- Starting Modes: 350% and 450% selectable duty options
- Protection Features: Phase loss, phase reversal, phase imbalance, electronic overload, shorted SCR, over-temperature
- Weight: 2.01 lbs
- Operating Temperature: 50°C
- Certifications: UL, CSA, CE, CCC, KC, C-TICK, GOST
Typical Applications
The 150-C16NBD is widely deployed in industrial motor control scenarios including:
- Centrifugal and positive displacement pumps with ramp-up requirements
- Screw and rotary compressors requiring gradual acceleration
- Conveyor belt systems needing soft-start to reduce shock loads
- Chiller and cooling tower fan motors with variable load profiles
- Lifts, hoists, and material-handling equipment
- Mixers and agitators in process manufacturing
Compatibility & Replacements
Compatible With
- Three-phase AC induction motors (both line and delta connected)
- NEMA motor frames and IEC metric motor sizes within 1.5–10 HP range
- Standard industrial control cabinets and soft-start rack systems
- Allen-Bradley ControlLogix and CompactLogix PLC platforms for integrated motor diagnostics
- Rockwell Automation Studio 5000 for monitoring and reporting via compatible I/O modules
Replaces / Drop-In Replacement For
- Earlier SMC-3 soft starters with equivalent 16A ratings (verify part number compatibility)
- Verify compatibility with your system integrator before ordering, as alternate models may have different terminal configurations or feature sets
Works With
- Rockwell Automation hardwired control circuits and electromechanical starters (as a retrofit upgrade)
- Standard motor overload relays and disconnect switches in industrial electrical panels
- Allen-Bradley reference contacts and auxiliary relay modules for expanded control logic
- EtherNet/IP networks through optional gateway modules for remote diagnostics
- Local DIP switch configuration—no separate programming software required for basic operation




