With a 251 A controller rating, the Allen-Bradley 150-F251NCR SMC-Flex solid state controller provides dependable motor starting for three-phase systems. This industrial automation module operates on 200-575V AC input lines and supports 50 and 60 Hz supplies. Its open enclosure design suits integration into existing industrial control panels.
Technical Specifications
All technical parameters below are taken directly from the product listing for the Allen-Bradley 150-F251NCR.
| Parameter |
Value |
| Manufacturer |
Allen-Bradley (150-F251NCR) |
| Category |
Drives |
| Product Line |
SMC-Flex |
| Part Number |
150-F251NCR |
| Weight |
32.00 lbs (14.51 kg) |
| Bulletin Number |
Solid State Controller |
| Enclosure Type |
Open |
| Controller Rating |
251 A, 200 Hp @ 460V AC |
| Input Line Voltage |
200-575V AC, 3-phase, 50 and 60 Hz |
| Control Voltage |
24V AC/DC (5-480 A units) |
| Rated Voltage |
500/575V AC |
Key Features at a Glance
- 251 A solid state controller rating
- 200 Hp @ 460V AC motor control capability
- Wide input range: 200-575V AC, 3-phase, 50/60 Hz
- Open enclosure for flexible panel mounting
- 24V AC/DC control voltage for integration
Industry Applications
Because the Allen-Bradley 150-F251NCR supports up to 200 Hp @ 460V AC, it suits large industrial motors. Typical uses include pump systems, conveyor drives, and fan controls. The 200-575V AC input range offers flexibility across global installations.
Installation & Setup Guidance
Plan to mount the 150-F251NCR inside a clean, ventilated enclosure. The open enclosure design means the controller is not pre-housed, so you must provide adequate physical protection. Verify the supply line matches the 200-575V AC, three-phase rating before energizing.
Maintenance & Reliability
The solid state construction of the Allen-Bradley 150-F251NCR reduces wear compared to electromechanical starters. Perform periodic checks on terminal connections and ensure the open enclosure stays free of dust and moisture. Regular inspection helps extend service life and prevent unplanned downtime.
Selection Guide & Purchasing Advice
Before sourcing this part, confirm your motor's current draw does not exceed the 251 A controller rating. Check the control voltage needs of the system; the 150-F251NCR uses 24V AC/DC control power for 5-480 A units. For a reliable supply, contact PLC Source PRO for availability and pricing.