The SP-50406 kit is an Allen-Bradley spare parts kit. The SP-50406 kit contains a power supply board for 30 to 50 Horsepower rated Bulletin 1336 variable frequency drives. The installation and troubleshooting of Allen-Bradley drives and components like the SP-50406 kit should only be performed by trained technicians who know all the installation and safety guidelines provided in the installation manual. If a 1336 drive or the SP-50406 kit is not going to be installed immediately, it should be stored in an environment where it will be safe from dust and contaminants and where the ambient temperature is maintained between -40 and 85 degrees Celsius. To prevent equipment damage and injury to the users, the drives should be only moved when proper safety precautions are being followed. ESD precautions should be followed to prevent damage to ESD-sensitive drive parts and components like The SP-50406 kit.

Allen-Bradley 1336 series drives and components like the SP-50406 kit are designed for direct connection to 3-phase AC mains power supplies. However, isolation transformers may be required in situations where the risk of fluctuations and other anomalies exists in the AC mains supply. Allen-Bradley 1336 series drives are available in 3 to 250 Horsepower ratings. The input voltage ranges supported by the drives include 380 to 460 Volts AC or 500 to 575 Volts AC. The drives are available in multiple enclosure types including IP 54, IP 56, IP 20, and IP 00. The recommended operating temperature varies with the drive enclosure. The relative humidity range for operation and storage is from 5 to 95%. The operating vibration rating is 0.006 inches at 1G peak.