Allen Bradley 1336-QOUT-SP12B Transistor Output Assembly Kit

FAQ

Q1: What is the Allen-Bradley 1336-QOUT-SP12B used for?
A: The 1336-QOUT-SP12B is an output transistor assembly kit used inside Allen-Bradley 1336 drives to provide power switching control for the inverter output stage.

Q2: Which drives are compatible with the 1336-QOUT-SP12B?
A: It is designed for Allen-Bradley 1336STEF 460V drives, specifically 60–75 HP Series B and later configurations.

Q3: What is the main function of the transistor output assembly?
A: The assembly switches DC bus power through power transistor devices to generate controlled AC output voltage and frequency for motor operation.

Q4: Is the 1336-QOUT-SP12B a complete variable frequency drive?
A: No. It is only a replacement power output assembly installed inside compatible Allen-Bradley 1336 drive units.

Q5: What symptoms may indicate a failed output transistor assembly?
A: Typical symptoms include output phase faults, overcurrent alarms, short-circuit faults, abnormal motor operation, or a drive that cannot deliver output voltage.

Q6: What are the dimensions and weight of the 1336-QOUT-SP12B?
A: The approximate dimensions are 180 × 120 × 60 mm, and the weight is approximately 0.91 kg. The listed product weight is about 2.00 lbs (0.91 kg).

Q7: Can the 1336-QOUT-SP12B replace other 1336 output transistor assemblies?
A: Replacement should only be performed after confirming the drive frame size, voltage rating, horsepower range, series revision, and original part number. Different 1336 output assemblies are designed for specific drive configurations.

Q8: What should be checked before installing the 1336-QOUT-SP12B?
A: Verify the drive model, disconnect power completely, discharge the DC bus, inspect mounting hardware and connectors, confirm transistor assembly compatibility, and follow proper electrical safety procedures before replacement.