When the converter section in an older RV power centre fails, the replacement must match the original electrical rating and power-centre model. Progressive Dynamics offers three PD4600 upgrade sections for documented 35-, 45- and 55-amp installations. Compare the manufacturer numbers and photographs before choosing the replacement.
Compare the matching products
Choose a product photograph to open its individual NewRVParts listing. Manufacturers use separate model numbers for different current ratings, charging methods and accessories.
Identify the correct model
| Progressive Dynamics | DC output | Manufacturer-listed converter sections replaced |
|---|---|---|
| PD4635V | 35A | WFCO 8935; Parallax/Magnetek 6336 |
| PD4645V | 45A | WFCO 8945; Parallax/Magnetek 6345; Parallax 7345 or 8345 |
| PD4655V | 55A | WFCO 8955; Parallax/Magnetek 6355; Parallax 7355, 8355 or 7155 (but not 7155RVP) |
Parts identified in the replacement installation
The model-specific information below helps identify a terminal, installation component or separately listed accessory. It does not replace the manufacturer's electrical installation instructions.
| Section or connection | What it does | Important detail |
|---|---|---|
| PD4600 replacement chassis | Provides regulated 12V DC output and battery charging | Select the original 35/45/55A rating rather than increasing the amperage |
| DC distribution board | Provides the branch-fuse and battery/converter connections | The manufacturer's retrofit procedure replaces this board in applicable power centres |
| 4-wire board-to-converter harness | Joins the replacement DC distribution board to the converter | Used in the compatible conversion layouts described in the factory manual |
| AC converter feed | 120V hot, neutral and equipment ground | Connects to the existing appropriate AC breaker and distribution terminals |
| DC converter leads | Converter positive and negative connections | Observe the labeled positive and negative lugs; the installed wiring varies by power centre |
| Existing branch fuses | Protect the RV's original DC branch circuits | Retain the correctly rated fuses and original circuit assignments |
| Metal converter enclosure | Supports installation in applicable power-centre designs | The current manual shows different handling for WFCO and Parallax/Magnetek conversions |
| Cooling fan and ventilation | Removes heat from the converter under charging load | Maintain the clearances and installed mounting arrangement specified by the maker |
Original manufacturer installation reference
Refer to the factory document for terminal locations, wiring precautions, part identification and the correct connection procedure.
Use the original manufacturer's PDF to enlarge diagrams and read the complete instructions.