The 1336-BD-12A is a diode replacement kit that is designed and manufactured by Allen-Bradley. This kit is used as a substitute for the diode spare part of the 1336 series. Diodes have been particularly used in almost any electronic device, their function is based on a control valve function, allowing that current is conducted only in one direction and impeding that reverse current enters the electrical system of the drive. The Allen-Bradley 1336-BD-12A diode replacement kit replaces the main diode spare part used with the adjustable frequency AC drives from the series. This diode has other electrical components such as a rectifier unit, a bus supply temperature sensor, DC bus snubber circuits, DC chokes and input filter capacitors.

The operating range of the Allen-Bradley 1336-BD-12A diode replacement kit will be the same than the operating drive, this part should not be exposed or stored in corrosive atmospheres, it has the ability to operate within a temperature range of 0 to 40 degrees Celsius (32 to 104 degrees Fahrenheit) and a relative non-condensed humidity of 95% without water dropping. When it comes to overheating prevention, it is recommended to install a cooling device in order to maintain both the drive and the diode kit working at the recommended temperature. Due to the nature of the diode functionality, it tends to release a high amount of heat, affecting this way other surrounding spare parts and the drive itself. It is utterly important that when installing this kit, all the parameters are met in order to guarantee a proper functioning. The technician should have prior experience with Allen-Bradley AC frequency drives and other electronic disciplines.