Configured for reduced-voltage solid-state motor starting in 3-phase AC industrial power circuits, the Allen-Bradley 150-F43NBR (150-F43NBR Smart Motor Controller) provides direct physical/electrical execution for controlled torque acceleration, current limiting, and soft stopping profiles.

Hardware Designation Breakdown

• 150-F: Bulletin 150 SMC Flex solid-state motor controller chassis structure.
• 43: 43 A continuous current rating supporting 7.5 to 30.0 hp motor loads at 460 VAC.
• N: Open enclosure frame designed for panel mounting inside industrial control cabinets.
• B: 200...480 VAC 3-phase line input operating threshold at 50/60 Hz.
• R: Low-voltage 24 VAC/DC control supply circuit interface.

Technical Performance Matrix

Industrial Communication & Controller Synchronization

The solid-state controller routes diagnostic metrics, operational feedback, and current telemetry over EtherNet/IP deterministic networks via optional communication adapters. Embedded control microcode maintains strict firmware flash compatibility across control nodes, preventing handshake latency and backplane timing skew during real-time automated PLC sweep updates.

Supplied Hardware Package

• 1 x Allen-Bradley 150-F43NBR Smart Motor Controller
• 1 x Installation Instruction Leaflet

Control Cabinet Setup & Electrical Protocols

• Mechanical Chassis Mounting
  • Mount the open unit vertically on a flat, grounded panel surface to ensure adequate heat dissipation via natural vertical air convection.
• High-Voltage Power Wiring
  • Connect 3-phase power input leads to terminals L1, L2, L3 and motor output cables to T1, T2, T3 according to marked terminal torque specifications.
• Control Circuit Wiring
  • Terminate the 24 VAC/DC control supply using dedicated shielded cables isolated from high-power distribution lines.
• Protective Earth Grounding
  • Bond a heavy-gauge copper grounding wire directly from the main panel ground bus to the chassis protective earth terminal before applying power.

Field Engineering FAQs

• What continuous current capacity does the 150-F43NBR provide?

  The controller delivers a continuous output current rating of 43 A for 3-phase AC induction motors.

• What control supply voltage is required for internal logic activation?

  The unit operates using a low-voltage 24 VAC/DC control supply connected to its designated control terminals.

• Is hot-swapping permitted on power terminals during operational states?

  No, line power and control power sources must be completely disconnected before modifying terminal connections.

• What motor horsepower range is supported at 460 VAC line voltage?

  The controller manages 3-phase induction motors rated between 7.5 hp and 30.0 hp at 460 VAC line input.

• Does this open-enclosure model require an external protective panel?

  Yes, as an open enclosure unit, it must be installed within a NEMA or IP rated cabinet to maintain environmental protection.

• How does the unit maintain parameter consistency over fieldbus networks?

  Optional communication modules interface with internal registers while maintaining firmware flash compatibility across nodes.

• What input line voltage parameters apply to the main power circuit?

  The main power circuit accepts 3-phase AC operating line voltages from 200 VAC to 480 VAC at 50/60 Hz.

• What installation orientation is required for correct thermal management?

  The chassis must be mounted vertically on an unpainted metal backpanel to allow convection cooling across internal heat sinks.