Allen-Bradley 150-F108NBD – 108A SMC-Flex Smart Motor Controller | Rockwell Automation
Engineering Background: The Allen-Bradley SMC-Flex (Series 150) is Rockwell Automation’s flagship solid-state motor control platform, engineered for demanding industrial environments where precise motor starting, stopping, and protection are mission-critical. The 150-F108NBD is a full-featured, 108-ampere frame unit designed for three-phase AC induction motors up to 600V, combining advanced soft-start/stop algorithms with comprehensive onboard diagnostics.
Product Positioning: Targeted at procurement engineers and OEM system integrators in heavy manufacturing, water/wastewater, mining, oil & gas, and material handling sectors. The 150-F108NBD replaces legacy electromechanical starters with a compact, network-ready solution that reduces mechanical stress, extends motor life, and integrates seamlessly into Allen-Bradley/Rockwell control architectures.
Complete Technical Specifications
- Part Number / SKU: 150-F108NBD
- Series: SMC-Flex (150 Series)
- Manufacturer: Allen-Bradley / Rockwell Automation
- Controller Type: Solid-State Smart Motor Controller (Soft Starter)
- Rated Current: 108 A (continuous)
- Supply Voltage: 200–600 V AC, 3-Phase, 50/60 Hz
- Control Voltage: 100–240 V AC (suffix “B” = 120V AC control)
- Frame Size: F (Full-Voltage, Inline)
- Communication Option: DeviceNet (suffix “D”)
- Bypass Contactor: Internal bypass included
- Starting Modes: Soft Start, Current Limit Start, Full Voltage, Preset Slow Speed
- Stopping Modes: Soft Stop, Coast-to-Rest, Braking (optional)
- Motor Protection: Electronic overload, phase loss, phase imbalance, stall, jam, underload, ground fault (optional)
- Enclosure: Open (IP00) — for panel/enclosure mounting
- Ambient Temperature: 0°C to +40°C (operating); -40°C to +85°C (storage)
- Certifications: UL Listed, CE Marked, CSA Certified
- Weight: Approx. 15 kg
- Catalog Number: 150-F108NBD
Proven Application Environments
- Water & Wastewater: Pump soft-start/stop to eliminate water hammer; integrates with SCADA via DeviceNet
- Mining & Minerals: Conveyor belt and crusher motor control with jam/stall protection
- Oil & Gas: Compressor and pump motor management in hazardous-area panel builds
- HVAC & Building Automation: Fan and chiller motor starting with energy-saving underload detection
- Material Handling: Hoist and crane duty with controlled acceleration/deceleration profiles
- Food & Beverage: Hygienic conveyor drives requiring smooth, repeatable start cycles
Engineering Advantages
- Reduced Mechanical Stress: Voltage ramp soft-start limits inrush current to 2–4× FLA, extending motor and driven-equipment life
- Onboard DeviceNet Port: Native network connectivity for real-time diagnostics, parameter adjustment, and integration with ControlLogix / CompactLogix PLCs without additional gateway hardware
- Internal Bypass Contactor: Eliminates external bypass wiring; reduces panel footprint and wiring labor
- Comprehensive Motor Protection: 12+ protection functions replace separate overload relay, reducing BOM cost and panel complexity
- Parameter Storage: Non-volatile memory retains all settings through power loss; supports rapid commissioning via parameter copy
- LCD Operator Interface: Compatible with 150-SM4 remote operator panel for local parameter access and fault diagnostics
System Architecture & Signal Flow
The 150-F108NBD operates as a three-phase, in-line solid-state controller. On a start command (hardwired or DeviceNet), the SCR power section ramps supply voltage to the motor according to the programmed acceleration profile. Once at full speed, the internal bypass contactor closes, shunting the SCRs and eliminating heat dissipation during run. On a stop command, the bypass opens and the SCR section executes the programmed deceleration ramp before gating off. All protection functions are monitored continuously by the onboard DSP, with fault events logged and accessible via DeviceNet or the operator interface.
Typical Wiring Topology: L1/L2/L3 (line) → SMC-Flex power terminals → T1/T2/T3 (load) → Motor. Control circuit: 120V AC to terminals 1 & 2 (enable), 3 & 4 (start/stop). DeviceNet: 5-pin micro connector (24V DC bus, CAN_H, CAN_L, Shield, GND).
Sourcing & Quality Verification
- Authenticity: All units sourced through verified industrial distribution channels; original Rockwell Automation packaging and documentation
- Inspection Protocol: Each unit undergoes visual inspection, label verification (date code, country of origin), and functional power-on test prior to shipment
- Traceability: Serial number and date code recorded at intake; available upon request for warranty and lifecycle tracking
- Condition: New (factory-sealed) or Surplus New (unused, original packaging) — condition specified at time of quotation
- Warranty: 12-month Konmask operational warranty covering defects in materials and workmanship
Procurement Process
- Submit RFQ: Contact support@konmask.com or call +0086 19859288691 with your required quantity and delivery timeline
- Quotation: Receive itemized quote with unit price, lead time, and shipping options within 24 business hours
- Order Confirmation: Purchase order accepted via email; proforma invoice issued for wire transfer or credit card payment
- Quality Check & Dispatch: Unit inspected, photographed, and securely packaged; tracking number provided within 1 business day of payment clearance
- After-Sales Support: Technical documentation, wiring diagrams, and commissioning guidance available post-purchase
Technical FAQ
Q: What is the difference between 150-F108NBD and 150-F108NB?
A: The suffix “D” denotes the integrated DeviceNet communication option. The 150-F108NB is the base unit without network communication.
Q: Can the 150-F108NBD be used with a VFD on the same motor?
A: No. The SMC-Flex is a soft starter, not a variable frequency drive. It should not be used in series with a VFD. For variable-speed applications, a PowerFlex drive is recommended.
Q: What DeviceNet node address range is supported?
A: Node addresses 0–63 are configurable via the onboard DIP switches or through the DeviceNet network using EDS file-based configuration tools (RSNetWorx for DeviceNet).
Q: Is a separate overload relay required?
A: No. The 150-F108NBD includes a fully adjustable electronic overload protection function (Class 5–30 trip class) that meets NEC and IEC motor protection requirements.
Q: What is the maximum motor HP rating at 480V?
A: At 480V, 108A corresponds to approximately 75 HP (56 kW) for standard NEMA design B motors.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
