You can see th two REVERSE POLARITY FUSES off to themself here. This is a pictorial of the WFCO 12VDC distibution board. These could be on the 12VDC distribution board. The REVERSE POLARITY are usually two large value FUSES off-set to themself. Most of us have had better luck with the Progressive Dynamics PD4600 or PD9200 series smart mode converters. I am surprised you picked the WFCO WF 8900 series units as they don't have a good track record of not going into BOOST MODE smart mode charging. I don't have a pictorial of your MAGNETIC unit but should be similar to this.īESTCONVERTERS should have a writeup for you to use on replacing the Magnetic converter with the WFCO converter. The only other connections you should have on the WF8935 board was the WHITE-BLACK-GREEN wiring from the 120VAC circuit breaker. WHITE is the NEG -12VDC (GND) and the COLORED RED wire is the POS +12VDC wire. I think the WF8935 has a RED and a WHITE wire coming off the 12VDC terminals. More in-depth discussion can be found in other FMCA articles.I suspect you have miss-wired something. While this article summarizes only the fundamentals, I hope it has improved your understanding of how your RV electrical system functions. These, too, serve to keep your batteries charged under the right solar energy and low power consumption conditions. Solar power cells are growing in popularity. Battery ChargingĪlong with providing power to the RV, the converter or inverter/charger provides battery charging when the RV is plugged into a shore power source or on generator power. Our inverters deliver clean, durable AC power to the RV market that allows recreational enthusiasts access to all the comforts of home while on the road discovering the wonders of America. In addition, the 12-volt-DC branch circuits are protected by fuses or breakers. For instance, the refrigerator, converter, each air conditioner, microwave, and receptacles represent branch circuits. Each individual circuit (referred to as a “branch circuit”) is protected by a circuit breaker that feeds off one of these buss bars. In the case of a 50-amp RV, each 50-amp breaker is connected to its own buss bar. The output of this breaker feeds a buss bar within the breaker panel. Based on the popular MS Series pure sine wave inverter/charger, the new MSH models add a.

When an RV is connected to shore power or a generator, the unit’s electrical system is protected by a main breaker. Sensata is introducing three new models of HYBRID inverter/chargers. You just need to jumper the two positive leads to tie the two.

In that case, the inverter usually is wired with its own branch circuits separate from the converter. The new converter doesnt have this split output, and supplies nice clean power to everything. At their most basic, there’s no functional difference between an RV power converter and an RV battery charger. It is important to note that inverters that do not provide a charging function may coexist with an RV converter. It takes the 120-volt-AC power from the outside source and provides 12-volt-DC output that is used for battery charging and RV house power. When an RV is connected to shore power or to a generator, an inverter/charger replaces a converter by running in reverse. This largely eliminates the need for shore or generator power, although large loads such as air conditioners can’t effectively run off inverter power. They also provide battery charging capability so when an inverter/charger is used the. In other words, it takes an input of 12-volt-DC power from the battery bank and inverts it into 120-volt-AC power at the output. Inverter/Chargers typically range from 2,000 watts to 3,000 watts in size. 4.5 4.5 out of 5 stars 750 ratings Search this page 1 Best Seller in RV Power Converters. Therefore, when your RV is running off converter power, the batteries are not being drained, as the 12-volt DC power is being supplied by the converter rather than the batteries.Īn inverter is the opposite of a converter, as it changes 12-volt-DC power to 120-volt-AC power. RecPro RV Converter 45 Amp RV Power Converter & Battery Charger 4 Stage Smart Charging 120VAC to 12VDC 13V to 16.5V Operating Range.

This DC voltage is used to power the low-voltage devices throughout the RV, such as lights, control boards, fans, furnace motors, etc. The converter transforms some of this incoming AC voltage to 12-volt-DC power. When the RV is plugged into shore power or running off a generator, 120-volt-AC power is supplied directly to the breaker panel and power converter. For RVs with converters, the three components may be combined into a single assembly. The electrical system consists of three main components: converter or inverter/charger, power distribution, and battery charging. Some owners don’t have much understanding of how the electrical system in an RV works, so I offer this overview. The electrical system in your RV is likely one of those out-of-sight, out-of-mind subjects.

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