The 1336-SN-SP14A board from Allen Bradley is a spare part kit containing an inverter snubber that is also known as a printed circuit board or PCB. The 1336-SN-SP14A board is compatible with the 1336 PLUS, PLUS II, FORCE, and IMPACT series adjustable frequency drives which have an input voltage rating of 460 Volts AC and an output power rating of 250 to 600 Horsepower for Frame G drives and an output power rating of 700 to 800 Horsepower for Frame H drives. Allen-Bradley 1336 PLUS, PLUS II, FORCE, and IMPACT series drives are adjustable frequency AC drives that use solid-state components and offer multiple advanced features for high-performance industrial control applications. These drives support multiple input voltage ranges including 200, 400, and 600 Volts AC. A wide range of drive enclosures are available to satisfy a range of customer requirements. The control method supported by these drives is the sine-coded pulse width modulation (PWM) control. Multiple motor control algorithms are supported, including sensorless vector control and standard Volts per Hertz control.

The 1336-SN-SP14A board is available from Allen-Bradley as a spare part for drives with faulty snubber inverter PCBs. Each drive needs 3 PCBs like the 1336-SN-SP14A board to operate. Repair of malfunctioning drives should be performed only by technicians who possess the relevant experience with regard to the handling of AC drives. Because 1336 AC drives contain extremely high voltages and currents, there is a serious risk of injury and equipment damage if the drives are mishandled. In order to prevent injury and equipment damage, Allen-Bradley recommends the disconnection of electrical power, the complete discharge of bus capacitors and the implementation of ESD precautions prior to working on the drives or boards.