Product Overview
The Allen-Bradley 150-F135NBRD is a SMC Flex Smart Motor Controller designed for demanding industrial applications that require precise motor control and protection. This soft starter delivers a controlled starting current and torque, reducing mechanical stress on your equipment and minimizing electrical disturbances on your power network. With a controller rating of 135 A and support for 25-100 Hp at 460V AC, the 150-F135NBRD is a versatile solution for a wide range of three-phase induction motors.
This unit features a built-in display, 24V AC/DC control voltage, and a robust design that meets international standards. The 150-F135NBRD integrates seamlessly into existing control systems, offering both line-connected and delta-connected motor configurations. Its advanced protection features, including adjustable trip classes and PTC thermistor monitoring, ensure reliable operation and extended motor life.
Key Technical Specifications
The following table lists the critical specifications for the Allen-Bradley 150-F135NBRD. These values are taken directly from the manufacturer's data and are essential for proper system integration.
| Specification |
Value |
| Controller Rating |
135 A, 25-100 Hp @ 460V AC |
| Control Voltage |
24V AC/DC |
| Line Connected Motor Current |
34...135 A @ 600/Y/690V AC, 3-phase |
| Delta Connected Motor Current |
59...234 A @ 500/575V AC, 3-phase |
| Rated Operational Voltage |
200...480V AC (-15%, +10%) per UL/CSA/NEMA |
| Operating Frequency |
50/60 Hz for power circuit |
| Trip Classes |
10, 15, 20, 30 |
| Integrated Motor Overload Protection |
Yes |
| Optional Controller Feature |
SMB smart motor braking control (adjustable 0...400% of motor FLC) |
| Operating Temperature |
Open: -5 to 50 °C (23 to 122 °F) |
| Enclosure |
Open type |
| Weight |
15 kg |
| Dimensions (W x H x D) |
196.4 mm x 443.7 mm x 212.2 mm |
Applications & Use Cases
The Allen-Bradley 150-F135NBRD is ideal for industries that rely on heavy machinery, such as automotive manufacturing, material handling, and water treatment. In conveyor systems, the soft start reduces belt jolting and prevents product damage. For pumps, it eliminates water hammer effects, extending pipeline life. The SMB braking feature is particularly useful for centrifuges and other equipment that must stop quickly without mechanical brakes.
In a typical retrofit scenario, the 150-F135NBRD replaces older electro-mechanical starters, providing smoother acceleration and better energy efficiency. Its integrated overload protection eliminates the need for separate overload relays, simplifying panel wiring and reducing downtime.
Installation & Setup
Proper installation of the 150-F135NBRD ensures optimal performance and safety. The unit comes as an open type, so it must be mounted inside an appropriate electrical enclosure with adequate ventilation. The power terminals are designed for one M10 x 1.5 diam hole per power pole, and the control terminals use M3 screw clamps. Ensure that the control voltage (24V AC/DC) is supplied from a reliable source, and use the recommended Allen-Bradley power supply module (1606-XLP50E) if needed.
Before energizing, verify that the line and motor connections match the configuration (line-connected or delta-connected) and that the trip class is set according to your motor's thermal characteristics. The built-in display provides clear status indication, making commissioning straightforward.
Maintenance & Reliability
Routine maintenance for the 150-F135NBRD is minimal, but periodic inspection is recommended. Check the heatsink for dust accumulation and ensure that cooling fans operate correctly. The unit's power pole construction uses heatsink hockey puck thyristors, which are designed for long service life. The operating temperature range of -5 to 50 °C should be respected to avoid derating.
The 150-F135NBRD includes self-diagnostics for PTC input ratings, monitoring up to 6 sensors. This proactive approach helps identify motor overheating before it causes damage, reducing unplanned downtime and repair costs.
Compatibility & Integration
This soft starter is compatible with a wide range of three-phase induction motors and can be integrated into new or existing systems. It supports both line-connected and delta-connected motors, with maximum power ratings of 90 kW @ 500V AC and 75 kW @ 230V AC respectively. The auxiliary contacts (19/20, 29/30, 31/32, 33/34) provide flexible interfacing with PLCs and other control devices.
For advanced applications, the optional SMB braking control can be enabled without additional hardware. The unit also accepts a tachometer input (0...5V DC) for speed feedback, enabling precise speed control in certain applications.
Buying Guide
When purchasing a soft starter, verify the motor's full-load current (FLC) and the supply voltage to ensure compatibility with the 150-F135NBRD. This model covers a wide range, but confirming the trip current rating (117% of motor FLC) is essential. Additionally, consider the environmental conditions: the unit is rated for altitudes up to 2000 m and humidity of 5...95% noncondensing.
PLC Source PRO offers this genuine Allen-Bradley 150-F135NBRD with fast shipping and competitive pricing. Our team can assist with technical selection and ensure you receive the correct part for your application.