The Allen-Bradley 1336F-BRF50-AN-EN is a variable frequency AC drive which belongs to the 1336 PLUS II family of drives. Plus II drives are designed to support 0.5 to 600 HP power requirements. The 1336F-BRF50-AN-EN supports three-phase 380 - 480V AC or 513 - 620V DC input. The input voltage tolerance is -10% of the minimum and +10% of the maximum voltage. The supported range of input frequencies is 47 to 63 Hz.

The drive has an output rated for 5 HP (3.7 kW). The control method used is sine-coded pulse-width modulation (PWM). The range of the output voltage is 0 to the rated voltage while 0 to 400 Hz is the range of the output frequency. The 1336F-BRF50-AN-EN can operate in two modes: variable torque and constant torque. Ratings for constant torque mode are 6.6-6.8 kVA / 10A for the input and 6.7 kVA / 8.4 A for the output. Ratings for variable torque mode are 8.5 kVA / 10.7 A for the input and 7.2 kVA / 9.0 A for the output.

Protection trip ratings on the 1336F-BRF50-AN-EN are as follows: 570V AC (input over-voltage), 280V AC (input under-voltage), 810V DC (bus over-voltage) and 400V DC (bus under-voltage). The nominal voltage on the bus is 648V DC. Static control precautions should be followed for drive testing, repairing, installation and servicing. Furthermore, these activities should only be done by trained operators. Any activity on the drive should only be attempted after the bus capacitor voltage has discharged to zero volts. The 1336F-BRF50-AN-EN is an open drive (no enclosure). Its supported temperature range is 32 - 122 °. F. The heat dissipation is 113 W.

The 1336F-BRF50-AN-EN is a Scalar Control and Sensorless Vector Control capable adjustable frequency AC drive from Allen-Bradley. This product is a modular hardware, mostly made of electronic devices that internally interface to each other to perform the primary intended function of controlling the speed of an AC induction motor with the added capability of controlling and maintaining an excellent Torque. As this is an electronic device and a major component of an Automatic control loop, this hardware may function as a Final Control Element (FCE) that is used to carry out the command dictated by an external or internal controller. This drive has an Integral Proportional + Integral (P+I) control which allows the drive to act as a single loop controller. In most application, adjustable frequency AC drive such as this product is used with an external controller that support Proportional + Integral + Derivative (PID) control, a more complete automatic control algorithm that allows the drive to be used in almost any process. The Sensorless Vector and Scalar control further makes the drive capable of being used in simple to complex processes. This drive is also built with integral protection devices such as Overvoltage, Undervoltage, Short Circuit, Loss of feedback and other internal protection circuitry. It is best to add external protection components which may be purchased from Allen-Bradley as well to ensure compatibility of from 3rd party equivalent products. Such external devices include fuses, circuit breaker, isolation transformers, filters, active harmonic filter, etc. Some installation of this drive may need protection devices installed at the input or load side of the drive.