Product Overview
When a production line goes down, every hour of downtime carries a real cost. The Allen-Bradley 153H-F251FAD-50 solid-state controller, part of the SMC-Flex product line, is built to keep demanding motor applications running without unnecessary interruptions. This unit combines a 251 Amp current rating with a robust IP65 (Type 4/12) enclosure, making it a practical choice for plants that cannot afford frequent stoppages.
Key Parameters and Cost Implications
Current Rating: 251 Amps
The 251 A rating determines how much motor load this controller can handle. Under-sizing a controller leads to nuisance tripping and premature failure, both of which drive up maintenance costs. The 153H-F251FAD-50 gives you headroom for heavy-duty applications, reducing the risk of unplanned downtime.
Horsepower: 200 Hp at 460V AC
With a 200 Hp capability at 460V AC, this controller suits large motors found in processing and material handling. Matching the controller to the motor correctly avoids the expense of oversizing while still delivering reliable starts.
Input Line Voltage: 230V AC, 3-Phase
The 230V AC three-phase input, rated for both 50 Hz and 60 Hz, means the unit works across different regional power systems. This flexibility simplifies spare-parts planning for multi-site operations.
Control Voltage: 120V AC
A 120V AC control voltage is a common standard in North American industrial panels, so integration with existing control circuits is straightforward. Less rewiring means lower installation labor costs.
Enclosure: IP65 (Type 4/12)
The IP65 rating provides protection against dust and moisture. In environments where washdown or airborne contaminants are present, this enclosure reduces the need for additional protective cabinets, saving both space and cost.
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | Allen-Bradley |
| Product Line | SMC-Flex |
| Part Number | 153H-F251FAD-50 |
| Category | Drives |
| Bulletin Number | Solid-State Controller with Circuit Breaker |
| Controller Rating | 251 A, 200 Hp at 460V AC |
| Input Line Voltage | 230V AC, 3-phase, 50 and 60 Hz |
| Control Voltage | 120V AC |
| Rated Voltage | 230V AC |
| Control Type | Standard |
| Hp Rating | 100 |
| Enclosure Type | IP65 (Type 4/12) |
| Weight | 100.00 lbs (45.36 kg) |
Where the 153H-F251FAD-50 Fits
This controller serves both feeder and control circuit applications. Typical installations include pump stations, conveyor drives, and compressor systems where reliable motor starting is critical. The IP65 enclosure allows mounting in areas that see moisture or dust, removing the cost of building a separate enclosure.
Integration and Compatibility
The 153H-F251FAD-50 operates as a standalone solid-state controller. It does not rely on a specific communication protocol, so it integrates into existing 3-phase systems without a gateway. For control wiring, the 120V AC coil is standard in many panels, keeping retrofit costs low.
Maintenance and Reliability
Solid-state controllers have no moving contacts to wear out, which lowers long-term maintenance expenses compared to electromechanical starters. Periodic inspection of connections and the enclosure seal is recommended. Because the unit weighs 100 lbs (45.36 kg), ensure mounting hardware is rated for the load.
Selection Checklist
Before ordering, confirm your motor’s full-load amps and horsepower against the 251 A / 200 Hp rating. Verify that your supply is 230V AC, 3-phase, and that your control circuit provides 120V AC. If you need help matching this controller to your application, contact Oil AutoTech for hands-on technical selection support.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
