Allen-Bradley 150-F85NCR SMC-Flex Solid State Controller 85A

Product Overview

When a motor needs controlled starting and stopping in demanding industrial environments, the Allen-Bradley 150-F85NCR delivers reliable performance. This smart motor controller, part of the SMC-Flex product line, is designed to reduce mechanical stress and electrical disturbances during motor startups. As a maintenance engineer, you will appreciate its robust construction and straightforward integration into existing systems.

The 150-F85NCR features an open enclosure and a controller rating of 85 A with 60 Hp at 460V AC. It handles line voltages from 200-575V AC, three-phase, at 50 or 60 Hz. The control voltage is 24V AC/DC, making it compatible with standard industrial control circuits. This model belongs to the series B of SMC-Flex soft starters, known for their reliability in harsh conditions.

Technical Specifications

Input Line Voltage: 200-575V AC, 3-phase, 50 and 60 Hz

Control Voltage: 24V AC/DC (5-480 A units)

Controller Rating: 85 A, 60 Hp @ 460V AC

Enclosure Type: Open

Weight: 10.00 lbs (4.54 kg)

These parameters ensure the 150-F85NCR can handle moderate to high-power motors while maintaining flexibility for various supply voltages. The 24V control voltage simplifies integration with PLCs and other automation equipment.

Industry Applications

The 150-F85NCR is ideal for applications requiring controlled acceleration and deceleration of motors. Common uses include:

Compressors: Reduces inrush current and mechanical shock during startup, extending equipment life.

Pumps: Minimizes water hammer and pressure surges by ramping motor speed smoothly.

Fans: Prevents belt slippage and duct overpressure through soft starting.

From a maintenance perspective, the 150-F85NCR reduces wear on mechanical components, lowering the frequency of repairs and unplanned downtime. Its motor braking option stops motors faster than standard coast-down, which is especially useful in band-saw applications where quick stops improve safety and productivity.

Installation and Setup Guidance

Mount the 150-F85NCR in a clean, dry location with adequate ventilation. The open enclosure requires installation inside a suitable electrical cabinet to protect against dust and moisture. Ensure the ambient air temperature stays between 0-50°C and relative humidity does not exceed 95%. If operating above 1000 meters altitude, derate the controller accordingly.

Connect the three-phase line voltage to the input terminals, observing proper phase rotation. Use the 24V AC/DC control voltage for the logic inputs. Verify all connections are tight and comply with local electrical codes. For troubleshooting, the controller provides diagnostic indicators that simplify fault identification.

Maintenance and Reliability

Routine inspection is straightforward. Check for signs of overheating, loose connections, or debris accumulation. The 150-F85NCR includes protective heat thermistors that shut down the controller if internal temperatures exceed safe limits. This self-protection feature prevents damage and reduces the need for manual intervention.

Given its solid-state design, the controller has no moving parts to wear out, contributing to long service life. The 85 A rating ensures it can handle continuous operation without derating under normal conditions. For best reliability, follow the manufacturer's guidelines for periodic testing and verify that the control voltage remains stable.

Selection Guide and Purchasing Advice

Before purchasing the 150-F85NCR, verify that your motor's full-load current does not exceed 85 A and that the supply voltage matches the 200-575V AC range. The open enclosure is suitable for panel mounting; if you need a NEMA-rated enclosure, consider adding one separately.

BluePLC Industrial stocks the Allen-Bradley 150-F85NCR and can provide current pricing and lead times. Contact our team to confirm availability and discuss any compatibility questions. We also offer technical support to help you integrate this controller into your system.

For complete technical specifications for the 150-F85NCR, please contact BluePLC Industrial.