Product Overview
The Allen-Bradley 150-F251FCD is a solid state smart motor controller from the SMC-Flex product line, designed for three-phase squirrel-cage induction motors. This 150-F251FCD controller uses a built-in microprocessor to manage motor starting with precision, reducing mechanical stress and improving process control. Housed in an IP65 (Type 4/12) enclosure, the 150-F251FCD is built for demanding industrial environments where dust and water ingress must be minimized.
Key Features & Benefits
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Solid State Design: The 150-F251FCD provides smooth, stepless motor acceleration and deceleration, extending equipment life.
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Multiple Operating Modes: Includes 7 preset modes: Soft Start, Current Limit Start, Dual Ramp, Full Voltage, Linear Speed Acceleration, Preset Slow Speed, and Soft Stop.
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Braking Control: Offers rapid braking for quick stops or speed regulation, enhancing productivity and safety.
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Protective Features: Electronic Motor Overload Protection, SCR bypass/run contactor, and four programmable auxiliary contacts safeguard against faults.
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Robust Enclosure: IP65 (Type 4/12) rating ensures reliable operation in harsh conditions.
Technical Specifications
| Specification |
Value |
| Manufacturer |
Allen-Bradley |
| Product Line |
SMC-Flex |
| Part Number |
150-F251FCD |
| Category |
Drives |
| Bulletin Number |
Solid State Controller |
| Enclosure Type |
IP65 (Type 4/12) |
| Controller Rating |
251 A, 200 Hp at 460V AC |
| Input Line Voltage |
500-575V AC, 3-phase, 50 and 60 Hz |
| Control Voltage |
100-240V AC (5-480 A units) |
| Rated Voltage |
500/575V AC |
| Weight |
32.00 lbs (14.51 kg) |
Industry Applications
The Allen-Bradley 150-F251FCD is ideal for applications requiring controlled motor starting and stopping. Typical use cases include:
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Conveyor Systems: Soft start reduces belt strain and product shift.
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Pumps: Eliminates water hammer and pressure surges.
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Fans and Blowers: Prevents mechanical shock and reduces wear on belts and bearings.
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Compressors: Smooth acceleration protects drive components.
With its robust IP65 enclosure, the 150-F251FCD suits food processing, automotive, and material handling environments where washdowns or dust are common.
Installation & Setup Guidance
Proper installation ensures optimal performance. Follow these guidelines:
- Mount the 150-F251FCD on a flat, vertical surface with adequate clearance for airflow.
- Ensure the supply voltage matches the input line voltage (500-575V AC, 3-phase).
- Connect control voltage (100-240V AC) to the appropriate terminals.
- Wire the motor to the output terminals, observing torque specifications.
- Configure the operating mode and parameters via the built-in keypad or software.
- Verify all connections before energizing.
Maintenance & Reliability
Regular maintenance extends the life of the 150-F251FCD. We recommend:
- Periodic inspection of the enclosure seals to maintain IP65 integrity.
- Check all power and control wiring for signs of wear or loose connections.
- Keep the unit clean and free of dust accumulation.
- Monitor operating temperature; ensure ambient stays within -5 to 50°C (open) or -5 to 40°C (enclosed).
- Test protective functions annually to confirm proper operation.
Buying Guide
Before purchasing the Allen-Bradley 150-F251FCD, verify your motor's full-load current and supply voltage to ensure the 251A rating and 500-575V AC input match your system. This unit is a non-combination controller; you may need an external disconnect and short-circuit protection. For assistance, PLC Source PRO offers genuine Allen-Bradley parts with fast shipping.