Allen-Bradley 1336F-BRF75-AA-EN AC Variable Frequency Drive

Product Details

1336F-BRF75-AA-EN Product Description

The Allen-Bradley 1336F-BRF75-AA-EN is a 75HP (55kW) AC variable frequency drive from the 1336 PLUS II series, engineered for high-demand industrial environments where energy efficiency, motor control precision, and production line stability are mission-critical. Designed to integrate seamlessly into Rockwell Automation control architectures, this drive delivers advanced load management, dynamic torque regulation, and real-time energy feedback — making it a cornerstone component for factories pursuing smart energy optimization and lean manufacturing targets.

The 1336F-BRF75-AA-EN is purpose-built for integration within Rockwell Automation's layered control ecosystem. At the controller level, it pairs directly with the Allen-Bradley ControlLogix L6x PLC via DeviceNet or Remote I/O, enabling closed-loop speed and torque commands that respond dynamically to production demand signals. For legacy installations, it maintains full compatibility with the SLC 500 and PLC-5 platforms, protecting existing capital investments while upgrading drive-level energy intelligence.

On the operator interface side, the drive integrates with Allen-Bradley PanelView Plus HMI terminals, providing real-time visualization of motor speed, output current, fault codes, and energy consumption trends — giving line operators immediate visibility into drive health without requiring SCADA intervention. For broader plant-level energy monitoring, the 1336F-BRF75-AA-EN feeds data upstream to Rockwell FactoryTalk View SE SCADA systems, enabling energy dashboards, trend logging, and alarm management across multiple drive nodes.

The drive's DeviceNet port allows it to coexist on the same network segment as Allen-Bradley 1734 POINT I/O modules, 1756 ControlLogix I/O racks, and distributed 1794 FLEX I/O nodes — eliminating the need for dedicated analog wiring between the drive and field sensors. This architecture reduces panel complexity, lowers installation labor costs, and simplifies commissioning for multi-axis production cells.

For power quality and energy metering, the 1336F-BRF75-AA-EN works alongside Allen-Bradley PowerMonitor 3000 units to capture harmonic distortion data, power factor readings, and kWh consumption at the drive level. This pairing supports ISO 50001 energy management reporting and provides the granular load data needed for demand-side management programs. When combined with Rockwell PowerFlex 755 drives on adjacent motor circuits, the 1336F-BRF75-AA-EN participates in coordinated load-shedding strategies that prevent peak demand spikes and reduce utility penalty charges.

At the field level, the drive accepts feedback from Allen-Bradley 871 proximity sensors and encoder modules to enable speed-following and position-aware torque limiting — critical for conveyor synchronization and tension control in web-handling lines. The built-in dynamic braking interface supports connection to external braking resistors, enabling rapid deceleration without regenerative energy waste on high-inertia loads such as centrifuges and large fans.

In variable-torque applications such as centrifugal pumps, cooling fans, and air handling units, the 1336F-BRF75-AA-EN delivers energy savings of up to 40% compared to across-the-line motor starters. By matching motor speed precisely to process demand — rather than running at full speed with throttling valves or dampers — the drive eliminates the mechanical energy waste that inflates operating costs in conventional installations. Over a typical 8,000-hour annual operating cycle at 75HP, this translates to tens of thousands of kilowatt-hours recovered per drive node.

The drive's sensorless vector control algorithm maintains stable torque output across the full speed range, preventing the motor hunting and speed oscillation that cause mechanical stress, bearing wear, and unplanned downtime. By stabilizing motor operation, the 1336F-BRF75-AA-EN extends mean time between failures (MTBF) for connected motors and gearboxes — directly reducing maintenance labor and spare parts consumption. Predictive maintenance is further supported through the drive's built-in fault logging and parameter trending, which can be polled by FactoryTalk AssetCentre or third-party CMMS platforms to trigger condition-based service alerts before failures occur.

For production line throughput optimization, the drive's programmable acceleration and deceleration ramps allow line engineers to tune start/stop profiles that minimize mechanical shock on conveyors, reduce product spillage on filling lines, and synchronize multi-motor sections without mechanical couplings. This capability directly improves Overall Equipment Effectiveness (OEE) by reducing micro-stoppages caused by drive trips and mechanical misalignment events.

Thermal load management is another key efficiency lever. By running motors at optimized speeds rather than full load, the 1336F-BRF75-AA-EN reduces motor winding temperatures and heat dissipation into the plant environment — lowering the cooling load on HVAC systems and reducing the risk of heat-related insulation degradation. In high-ambient environments such as foundries, food processing facilities, and outdoor pump stations, this thermal benefit extends motor service life significantly.

Every unit is fully tested prior to shipment, with functional verification of output voltage, frequency response, fault detection, and communication port integrity. In-stock units are available for immediate dispatch, with lead times of 3–5 business days for standard configurations. All units are covered by a 12-Month Warranty against manufacturing defects, with technical support available for commissioning, parameter configuration, and fault diagnosis.

Q1: What energy savings can I expect from the 1336F-BRF75-AA-EN on a centrifugal pump application? In variable-torque pump and fan applications, the drive typically delivers 30–40% energy savings compared to fixed-speed operation. Actual savings depend on the load profile, duty cycle, and system curve characteristics. For precise ROI calculations, we recommend logging actual kWh data via the PowerMonitor 3000 before and after installation.

Q2: Is the 1336F-BRF75-AA-EN compatible with my existing ControlLogix or SLC 500 system? Yes. The 1336F-BRF75-AA-EN supports DeviceNet and DH+ communication protocols, making it directly compatible with ControlLogix, SLC 500, and PLC-5 controllers. No gateway or protocol converter is required for standard network topologies. Confirm your network scanner card revision and DeviceNet node address allocation before commissioning.

Q3: Can this drive replace an older 1336 PLUS or 1336 IMPACT unit in an existing panel? The 1336F-BRF75-AA-EN is dimensionally and electrically compatible with earlier 1336 PLUS II frame sizes at the 75HP rating. Parameter migration from legacy drives requires a DriveExplorer or Studio 5000 Drive Configuration tool session to map existing parameter sets. Contact our technical team for a pre-replacement parameter audit.

Q4: What does the 12-Month Warranty cover, and what is the testing process before shipment? All units undergo pre-shipment functional testing covering output voltage balance, frequency accuracy, fault relay operation, and communication port response. The 12-Month Warranty covers manufacturing defects in materials and workmanship from the date of shipment. Warranty claims are processed with RMA authorization, and replacement units are dispatched from in-stock inventory to minimize production downtime.