---
product_id: 35698711
title: "PM4 75A MBA 110V AC to 12V DC 75 Amp Power Converter w/Built-in 4 Stage Smart Battery Charger, Quiet Cooling Fan - Durable, Superior Performance (12.2 x 8.7 x 6.2)"
brand: "powermax"
price: "R6173"
currency: ZAR
in_stock: true
reviews_count: 13
url: https://www.desertcart.co.za/products/35698711-pm4-75a-mba-110v-ac-to-12v-dc-75-amp
store_origin: ZA
region: South Africa
---

# 75A Output Smart Charger Safety Features PM4 75A MBA 110V AC to 12V DC 75 Amp Power Converter w/Built-in 4 Stage Smart Battery Charger, Quiet Cooling Fan - Durable, Superior Performance (12.2 x 8.7 x 6.2)

**Brand:** powermax
**Price:** R6173
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Up Your Life with Confidence!

## Quick Answers

- **What is this?** PM4 75A MBA 110V AC to 12V DC 75 Amp Power Converter w/Built-in 4 Stage Smart Battery Charger, Quiet Cooling Fan - Durable, Superior Performance (12.2 x 8.7 x 6.2) by powermax
- **How much does it cost?** R6173 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/35698711-pm4-75a-mba-110v-ac-to-12v-dc-75-amp)

## Best For

- powermax enthusiasts

## Why This Product

- Trusted powermax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Features reverse polarity, overload, and thermal protection to keep your devices safe.
- • **Certified Quality:** UL and CUL approved for reliability and peace of mind.
- • **Powerful Performance:** Delivers a robust 75 Amp DC output, perfect for all your power needs.
- • **Whisper-Quiet Operation:** Enjoy a peaceful environment with a quiet cooling fan that minimizes noise.
- • **Smart Charging Technology:** Equipped with a built-in 4 stage smart battery charger for optimal charging.

## Overview

The PowerMaxPM4 75A MBA is a high-performance AC to DC power converter that provides a powerful 75 Amp output. It features a built-in 4 stage smart battery charger, ensuring efficient and safe charging. With advanced safety features like reverse polarity and overload protection, along with a quiet cooling fan, this converter is designed for durability and superior performance. UL and CUL approved, it’s the perfect choice for professionals seeking reliable power solutions.

## Description

Powermax PM4 75A MBA 110V AC to 12V DC 75 Amp Power Converter w/Built-in 4 Stage Smart Battery Charger, Quiet Cooling Fan - Durable, Superior Performance (12.2 x 8.7 x 6.2)

## Features

- 75 Amp DC Power Output
- Replaces all WFCO-8900
- Built-in 4 Stage Smart Charger
- Reverse Polarity, Overload and Thermal Protection
- Quiet Cooling fan
- UL and CUL Approved

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | PowerMax |
| Brand | PowerMax |
| Model | PM4 75A mba |
| Item Weight | 5.04 pounds |
| Package Dimensions | 12.2 x 9.02 x 4.57 inches |
| Country of Origin | China |
| Item model number | PM4 75A mba |
| Manufacturer Part Number | PM4 75A mba |
| OEM Part Number | WF-8975-MBA, WFCO WF-8975-MBA |
| Amperage | 75 Amps |
| Voltage | 12 Volts |
| Wattage | 15 watts |

## Images

![PM4 75A MBA 110V AC to 12V DC 75 Amp Power Converter w/Built-in 4 Stage Smart Battery Charger, Quiet Cooling Fan - Durable, Superior Performance (12.2 x 8.7 x 6.2) - Image 1](https://m.media-amazon.com/images/I/81EFU7EYwlL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Will this fit my Magnetek 6300 model 6332 32amp?**
A: I am not sure. You can search on Powermax and call them and they will tell you.

**Q: Is the converter supposed to run 24/7?**
A: it should only run long enough to charge up your batteries ... mine runs to charge up my batteries and then only cycles to top off if I'm using my 12 volts.. The only time it ran 24/7 was when I didn't realize my batteries were bad and wouldn't take a charge and burn out my converter by trying to stay up with bad batteries..

**Q: How many amps does this draw?**
A: 55a X 12vdc = 660 amps dc divided by 120 =  5.5  amps ac

**Q: will it replace  the converter arterra 8955 mba**
A: It will, they are both rates at 55amps, the cooling fan/heat sink/component layouts look similiar. The mounting holes/screws will probably be in different places so you may have to drill holes in different places

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works as advertised. Better than the OEM.
  

*by T***E on Reviewed in the United States on August 2, 2024*

I used this as a replacement for the Wfco 8955pec that was the OEM converter in my trailer. It fit perfectly, even using the same mounting screw locations. The wires on the Powermaxx are on opposite sides compared to the Wfco, but they are long enough to install without issue. My only issue was that the grounding wire was short and I had to move others wires up on the ground buss bar in order to use the lowest location for this converter (Powermaxx needs to add another few inches of ground wire to improve this product).Straightforward install and once I powered it up it works exactly as advertised. Very happy with this product so far!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works great!
  

*by R***Y on Reviewed in the United States on October 27, 2023*

So easy to install and works great! I would not hesitate to install this on any RV. Our current converter was not charging properly, this one was so easy and as soon as I turned it on the system was up and running. It's a great upgrade to any older standard converter. For the price you can't beat it!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect replacement for factory one.
  

*by S***N on Reviewed in the United States on October 18, 2022*

Hello RV replacement converter buyers. Bought this to replace my bad factory 55 amp converter with this 75 amp in my Keystone Cougar 5th wheel. Several things I would like readers to know. First this is same dimensions as factory one aprox 10 in long x 6 3/4 in wide x 4 in tall as I couldn’t find the actual dimensions anywhere . Screwed directly to the base of my plastic electrical panel.Second the wires are on opposite ends of factory one. The wires are definitely long enough you just have to route them in the shortest possible route. I ran the 12 volt output wires through the top where the notches are with a couple pieces of rubber tubing over wires to prevent chafing against the metal notches . From there ran exact same route as old wires to the circuit board. It helps if you unclip the 12 volt circuit panel with the lugs on it until you remove the old wires and attach these new wires. The 120 volt wires are plenty long enough with the ground wire being the shortest, I had to move one of the existing ground wires up on the buss bar to free up a screw lug to attach this new ground wire to the bottom screw lug to get it to fit without splicing a piece onto the new ground wire.Third the mounting tabs on this one align perfectly with the existing mounting screws.Found this on sale in Amazon Warehouse for $113 due to a damaged box, way cheaper and heavier duty than the $265 fifty five amp factory ones.

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**Shop now:** [https://www.desertcart.co.za/products/35698711-pm4-75a-mba-110v-ac-to-12v-dc-75-amp](https://www.desertcart.co.za/products/35698711-pm4-75a-mba-110v-ac-to-12v-dc-75-amp)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-23*