Parallax 8345 & 8355 Power Centres: Converter Parts Guide

The Parallax 8345 and 8355 are complete 30A-shore-service RV power centres with built-in DC converters. By contrast, 45RU, 55RU and 6345RU are replacement converter products for specific older models. Selecting by amperage alone can leave you with the wrong equipment. Start with the exact label and decide whether the complete distribution centre or just its converter section needs changing.

Identify which assembly you are replacing

Complete AC/DC power centre

Old distribution centre needs replacementIncludes the AC breaker section, DC fuse section and charger
834545A converter/charger; 30A shore-power centre
835555A converter/charger; 30A shore-power centre
Confirm enclosure spaceFactory power centres have 11 DC fuse positions; AC breakers not included

Converter lower section only

Keep the original distribution enclosureFind the exact old power-centre model number
7345 → 45RU45A replacement converter lower section
7355 → 55RU55A replacement converter lower section
6345 → separate 6345RU kitIncludes the replacement DC fuse panel needed for the older 6345 design
Original model-identification illustration, not a wiring diagram or physical cutout drawing. Verify actual model labels, conductor connections and mounting requirements with Parallax's instructions.

Parallax power-centre and converter part numbers

Part Assembly DC output Relevant fitment check
8345 Full 8300 power centre 45A 30A shore service; full enclosure; breakers supplied separately
8355 Full 8300 power centre 55A 30A shore service; full enclosure; breakers supplied separately
45RU Converter replacement unit 45A Parallax/MagneTek 7345 lower section
55RU Converter replacement unit 55A Parallax/MagneTek 7355 lower section
6345RU Converter and DC fuse-panel upgrade kit 45A B-W/MagneTek 6345; includes required 11-position replacement DC fuse panel

Parallax lists each of the three RU replacements as approximately 3.65 in H × 10 in W × 7.5 in D. They are different applications despite their similar physical sizes. The 8345 and 8355 are complete distribution products, not substitutes for choosing an RU part by label.

Space matters: The manufacturer's replacement cross-reference says a complete 8300-series centre has a lower section about two inches deeper than the older 7300-series lower section. Measure the available cavity and confirm the required breakers and circuit configuration before choosing a complete unit.

Match a part number to its product image

These links lead to the corresponding products in NewRVParts, where current availability and product details can be checked.

Catalog photograph of Parallax 8345 complete power centre
8345 complete power centre8345 • 45A DC converter; 30A shore serviceView product and availability
Catalog photograph of Parallax 8355 complete power centre
8355 complete power centre8355 • 55A DC converter; 30A shore serviceView product and availability
Catalog photograph of Parallax 45RU converter lower section
45RU converter lower section45RU • 45A part for the 7345 power centreView product and availability
Catalog photograph of Parallax 55RU converter lower section
55RU converter lower section55RU • 55A part for the 7355 power centreView product and availability
Catalog photograph of Parallax 6345RU converter and fuse-panel kit
6345RU converter and fuse-panel kit6345RU • 45A MagneTek 6345 upgrade kitView product and availability

Manufacturer's model specifications

Consult the original 8345 and 8355 product information, plus Parallax's exact 45RU, 55RU, 6345RU and aftermarket cross-reference pages.

Electrical service: Disconnect all AC and battery power sources before work. Replacing an AC/DC distribution centre or modifying a fuse panel calls for the model-specific instructions and a qualified RV electrical technician.

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