Progressive Dynamics' Mighty Mini PD4000 power centres combine a 120V AC distribution section with fused 12V DC circuits and a front-accessible converter. The manufacturer's drawing identifies the battery positive and negative lugs, DC disconnect position, reverse-battery indicator and AC breaker compartment.

Original manufacturer wiring and fuse diagrams

Use the manufacturer's labelled illustration to locate the AC distribution compartment, converter and DC fuse-board connections. This is an electrical layout reference, not an exploded parts drawing.

View the original wiring diagram

Open the manufacturer's PDF to zoom in on the labelled components.

Open manufacturer wiring diagram (PDF page 2)

What the diagram labels identify

The listed components describe the connections and accessible parts in the original manufacturer drawing, rather than standalone replacement-part numbers.

Diagram component Function and identification
AC main breaker Main breaker and hold-down clip in AC compartment
AC hot input Incoming 120V supply at the main breaker
AC neutral bus Neutral connections for branch circuits
AC ground bar Grounding termination and chassis bonding
Converter AC wires Separate hot, neutral and ground leads for the converter
Converter DC positive Black converter positive output terminal
Converter DC negative White converter negative output terminal
Battery positive House-battery POS/BLK lug
Battery negative House-battery GND/WHT lug
DC disconnect jumper Link or external DC disconnect connection shown in diagram
Reverse battery indicator LED showing reverse battery fuse condition
DC fuse board Twelve positions, rating depends on circuit and fuse location

Match the exact power-centre model

The 4000-series panel supports a 30A AC main, up to seven AC branch circuits and twelve DC fuse holders (two up to 30A and ten up to 20A). The 45A model uses PD4045CSV for converter-section replacement; the 60A model uses PD4060CSV. A converter-section kit is not the complete enclosure, breaker panel or wiring harness.

Original model DC output Assembly Details
PD4045KV 45A Complete power centre 45A converter assembly
PD4060KV 60A Complete power centre 60A converter assembly
PD4045CSV 45A Replacement converter section For documented PD4045 power centres
PD4060CSV 60A Replacement converter section For documented PD4060 power centres

The current PD4045KV and PD4060KV power centres include a battery-chemistry selection feature, but older PD4000 versions may differ. Verify the model label, converter-section number and charging requirements before choosing a replacement. The manufacturer specifies horizontal mounting with the converter section to the left.

NewRVParts product photographs

Compare these catalog photos with the full manufacturer model number on your installed unit. A complete power centre and a replacement converter section are different products, even when they share an output rating.

Electrical safety: RV power centres may contain hazardous AC voltage even when the converter is switched off. Disconnect shore power, generator and battery supplies, and have wiring or distribution-panel work carried out by a qualified RV electrical technician in accordance with the original instructions.

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