The 1336F-B025-AA-EN-HCS2-L4 adjustable frequency drive is a variable speed drive by Allen-Bradley that is designed to provide exceptional control for 3-phase induction motors in applications requiring smooth and precise speed control. This drive belongs to the 1336F Plus II drive family which offers both constant and variable torque load capabilities in one compact package, and it also offers real-time preventive maintenance which alerts the operators to bus voltage status, current limit, motor overload, or drive overloads. The 1336F-B025-AA-EN-HCS2-L4 drive has a working voltage range of 380 to 480 Volts AC, and a drive power rating of 25 Horsepower. All 1336F Plus II drives with A4 frames have a 0.95 displacement power factor rating, and they all have 97.5% operational efficiency at a full load current and the nominal voltage. 

The 1336F-B025-AA-EN-HCS2-L4 drive has real-time protection against AC voltage overloads, current overloads, and over temperature situations, and like all 1336F Plus II drives, it has both constant and variable torque capabilities, with a maximum current draw of up to 150% of the full load current at a constant torque load and one of up to 115% of the full load current for 1 minute with a variable torque load. The 1336F-B025-AA-EN-HCS2-L4 drive features the Volts per Hertz control which offers the users the ability to customize the Volts per Hertz curve to suit their application needs, and for tighter speed control uses can switch to sensorless vector control, which offers up to 250% starting torque and lower operating speed (around 15 rpm). The 1336F-B025-AA-EN-HCS2-L4 drive has the English factory language option and it comes with a programming-enabled human-machine interface module with a digital pot and uploading/downloading capabilities. This drive has the TTL (Transistor-Transistor Logic) interface options, and it is enclosed with a NEMA Type 1 enclosure.