The 74103-244-59 board kit is an Allen-Bradley spare part kit that corresponds to the alternative catalog number 1336-BDB-SP9D. The 74103-244-59 board kit is a gate drive PCB (Printed Circuit Board) kit for solid-state Allen-Bradley 1336 drives (Frame B drives), including the IMPACT, FORCE, and PLUS drive families which have 15 Horsepower output power ratings and which are designed to operate at 575 Volts AC input voltage. The number of 74103-244-59 board kits required per drive is 1 kit per drive. Solid-state drives such as the 1336 FORCE, IMPACT, and PLUS drives provide numerous advantages, including their small size and their ability to execute complex functions. However, they are sensitive to environmental influences. Care should be taken to ensure that the recommended ambient temperature and relative humidity specifications for the drives are not exceeded during operation. The performance of the drives may also be affected by electrical noise. The practices recommended by Allen-Bradley for reducing the effect of electrical noise should be followed.

The service and maintenance of Allen-Bradley 1336 series AC drives should be performed by technicians possessing the requisite knowledge and experience. This will help to minimize the probability of injury or damage to the equipment. Prior to drive repair, such as replacing a 74103-244-59 board, the bus capacitors on the AC drive should be allowed to discharge. The bus voltage can be measured at the test points provided on terminal block 1 and it should be 0 Volts DC prior to the start of maintenance activities. Another extremely important precaution is the implementation of ESD safeguards, including the use of grounded wrist-straps and static-safe work areas.