The 1336-BR-SP4A is a Three Phase Diode Bridge Rectifier manufactured by Allen-Bradley. This is a spare part kit for Allen-Bradley’s 1336 series of adjustable frequency AC drives. It is categorized as level 2 spare parts, minor assemblies. This spare part can be used for all 1336 series models: 1336 PLUS, 1336 PLUS II, 1336 FORCE, and 13365 IMPACT & REGEN. It is also applicable for all three types of voltage (200-240V), (380-480V), (500-600V). The 1336-BR-SP4A is applicable for the 1336 series “B” frame sized models with 230 Volts AC and a 10 to 15 HP rating, “B” frame sized models with 460 Volts AC and 20 to 30 HP rating, and “B” frame sized models with a 575 Volt AC and 20 HP rating.

The main two parts of the 1336 series AC drives are the rectifier assembly and the inverter. The 1336-BR-SP4A is taking part in rectifying the assembly function of converting the AC voltage into a DC voltage (after which the inverter assembly will convert this DC voltage into an AC voltage with adjustable magnitude and frequency). This device is basically an arrangement of six diodes in a bridge configuration, which provides DC output voltage for either polarity of input voltage. The 1336-BR-SP4A 3-phase bridge diode rectifier has three input terminals, intended for each input phase to be connected. The output rectified DC voltage is available on two output terminals. This Bulletin 1336 spare part kit’s features are low profile and high temperature conducting, direct mounting to a heatsink, great power to volume ratio, and low junction-to-case thermal resistance. This product’s weight is approximately 0.2 kilograms. It replaces the old model with kit designation 1336-BR-SP3A.