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Allen-Bradley 1336-PB-SP2B Precharge PC Board
Product Description:
The Allen-Bradley 1336-PB-SP2B Precharge PC Board is a circuit board that is used to precharge the bus capacitors in Allen-Bradley PowerFlex drives. It is a discontinued product, but it can still be found from some suppliers.
Product Parameters:
- Input voltage: 480 VAC
- Output voltage: 380 VDC
- Maximum current: 20 A
- Dimensions: 11.81 inches x 7.87 inches x 3.15 inches
- Weight: 2.5 pounds
Usage Methods:
The Allen-Bradley 1336-PB-SP2B Precharge PC Board is installed in the PowerFlex drive cabinet and connected to the bus capacitors and the AC power supply. When the drive is first turned on, the precharge board applies a reduced voltage to the bus capacitors, which allows them to charge to their full voltage safely. Once the bus capacitors are charged, the precharge board disconnects them from the AC power supply and the drive is ready to operate.
Product Advantages:
The Allen-Bradley 1336-PB-SP2B Precharge PC Board offers the following advantages:
- It protects the bus capacitors from damage by precharging them safely.
- It extends the life of the bus capacitors by reducing the amount of stress they are subjected to.
- It improves the performance of the drive by ensuring that the bus capacitors are always fully charged.
Discontinued Product:
The Allen-Bradley 1336-PB-SP2B Precharge PC Board is a discontinued product. If you need to replace a precharge board in an Allen-Bradley PowerFlex drive, you should contact Allen-Bradley or an authorized distributor to determine the appropriate replacement part.
Alternatives:
If you are unable to find a replacement Allen-Bradley 1336-PB-SP2B Precharge PC Board, there are a few alternatives that you may consider:
- You can contact a third-party repair company to repair your existing precharge board.
- You can replace the precharge board with a universal precharge board.
- You can upgrade the drive to a newer model that does not require a precharge board.
Please note that any of these alternatives may require modifications to your drive cabinet and/or wiring. It is important to consult with a qualified electrician before making any changes to your drive system.
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