The Allen-Bradley SP-151177 kit serves as a crucial base driver and power supply PCB kit designed for use with each Allen-Bradley Bulletin 1336 variable torque AC drive, accommodating units rated at 250 horsepower with an input voltage range of 380 to 460 volts AC. This PCB kit enables direct connection to a 3-phase power line, although an isolation transformer or line reactor may be necessary under unstable power conditions. Delivering optimal performance, these drives have an input power capacity of up to 235.8 kVA at 460 volts AC, and a power factor correction of 0.95, achieving a total heat dissipation of 18073 BTU per hour, thus necessitating adequate cooling with a 932 CFM-rated fan. Proper installation within an upright industrial cabinet is required, with recommended clearances of four inches at the top and bottom and two inches on either side to ensure efficient operation.
