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The Allen-Bradley 1336-PB-SP2B is a precharge printed circuit board designed for use within the 1336 series drive systems. This component is essential for managing the initial inrush current during the power-up sequence of the drive, protecting sensitive internal electronics from voltage spikes and surge currents.
| Manufacturer | Allen-Bradley |
| Model Number | 1336-PB-SP2B |
| Spare Part Number | 74101-502-51 |
| Component Type | Precharge PC Board |
| Weight | 0.3 kg |
Is the 1336-PB-SP2B still in production?
No, this model has been discontinued by the manufacturer. We provide high-quality spare parts to support legacy systems.
What is the function of this board?
The precharge board limits the current flowing into the drive's DC bus capacitors during the initial power-up phase to prevent damage to the rectifier and contactor components.