Product Overview
The Allen-Bradley 150-F43NBRD SMC Flex Smart Motor Controller is a versatile soft starter designed for industrial motor control. It combines a 43 A rating with 7.5-30.0 Hp capability at 460V AC, providing reliable starting and stopping for three-phase motors. This unit features a built-in display for status monitoring and supports 24V AC/DC control voltage, making it suitable for a wide range of automation systems.
As part of the SMC Flex family, the 150-F43NBRD offers advanced motor protection and control features, including brake control and adjustable trip classes. Its robust construction ensures long service life in demanding environments.
Key Technical Specifications
The 150-F43NBRD delivers precise motor control with the following parameters:
| Parameter |
Value |
| Controller Rating |
43 A, 7.5-30.0 Hp @ 460V AC |
| Control Voltage |
24V AC/DC |
| Rated Operating Voltage (Ue) |
200V |
| Rated Control Supply Voltage (AC 50/60 Hz) |
24V |
| Rated Control Supply Voltage (DC) |
24V |
| Overload Current (Line Connected) |
8.6 A |
| Overload Current (Delta Connected) |
14.8 A |
| Trip Classes |
10, 15, 20, 30 |
| Trip Current Rating |
117% of motor FLC |
| Operating Frequency |
50/60 Hz |
| Line Connected Motor Power (Max) |
40 Hp @ 575V AC, 60 Hz |
| Delta Connected Motor Power (Max) |
60 Hp @ 575V AC, 60 Hz |
| Line Connected Motor Current |
8.6...43 A @ 500/575V AC |
| Delta Connected Motor Current |
14.9...74 A @ 500/575V AC |
| Rated Operational Voltage |
200...480V AC (-15%, +10%) |
| Integrated Motor Overload Protection |
True |
| Internal Bypass |
True |
| Number of Poles |
3 |
| Enclosure |
Open type |
These specifications ensure the 150-F43NBRD handles a broad spectrum of motor applications with precision and safety.
Applications
The 150-F43NBRD excels in industries where controlled motor starting and stopping are critical. Common applications include:
-
Conveyor Systems: Provides smooth acceleration and deceleration, reducing mechanical stress on belts and gearboxes.
-
Pumps and Fans: Prevents water hammer and reduces inrush current, extending equipment life.
-
Compressors: Ensures reliable start-up under heavy load conditions, minimizing downtime.
With its optional SMB smart motor braking control, the 150-F43NBRD can stop motors quickly without additional hardware—ideal for emergency stops or precise positioning.
Installation Guidance
Proper installation is key to maximizing the 150-F43NBRD's performance. Follow these tips:
- Mount the controller in a clean, ventilated area with adequate clearance for heat dissipation.
- Use the specified cable sizes: 0.8...2.5 mm² (18...14 AWG) for lower line/load side, and 2.5...50 mm² (14...1 AWG) for upper load side terminals.
- Tighten power terminals to 14.7 Nm (130 in-lb) to ensure secure connections.
- For control wiring, maintain separation from power cables to avoid electromagnetic interference.
Refer to the wiring diagram in the user manual for detailed connections.
Maintenance & Reliability
Routine maintenance ensures long-term reliability. The 150-F43NBRD operates in temperatures from -5 to 50 °C and humidity up to 95% noncondensing. Periodically:
- Inspect the heatsink for dust accumulation and clean as needed.
- Check all terminal connections for tightness.
- Verify that the internal bypass is functioning correctly.
The unit's IP20 protection rating safeguards against accidental contact, while its robust construction minimizes downtime.
Buying Guide
When replacing or upgrading your motor controller, verify that the 150-F43NBRD matches your system's voltage and current requirements. This model supports 200...480V AC and offers up to 70kA fault current capacity with appropriate fuses. For expert assistance and genuine Allen-Bradley parts, PLC Source PRO is your trusted supplier—ensuring quality and availability.