Question How many amps does your DP PULL

[redbaron]

My 2019 DSDP vs the current 2022 LADP both consumed the same amount of energy, as they had the same options.

The 10kw generator could not power all of the devices we used when we where maxing out boon docking, so we had to adjust when we used certain devices. Not a big deal.

The 12,5Kw gives the same amount of available power (at sea level) as shore does, so we generally have no distinction on how we operate between Generator and shore.

 

[Kevin D Pem]

You are drawing way too much power. Actually I am more concerned that your main breakers are not tripping. In my rig I can run both AC units and other appliances without tripping. My AC units each draw 13 amps each. This leaves 24 amps available for other items if you loaded to 100% of available power. While circuit breakers are built and tested to run at 100% of their rating they are listed to be applied at 80% of the handle rating. if you apply that rule that available current on a 50 amp service is 40 amps which in my case in practical applications leaves 14 available amps after you take away the 26 amps used by ACs when running.

Well,80 amps.

 

[MemoriesByTheMile]

My 2019 DSDP vs the current 2022 LADP both consumed the same amount of energy, as they had the same options.

The 10kw generator could not power all of the devices we used when we where maxing out boon docking, so we had to adjust when we used certain devices. Not a big deal.

The 12,5Kw gives the same amount of available power (at sea level) as shore does, so we generally have no distinction on how we operate between Generator and shore.

Ditto on the 12.5kw gen - we operate the same on gen as we do on shore power.

 

[Neal]

@Joe Hogan keep in mind you have Lithiums which can pull 300A for charging if your charger is not setup correctly. Be sure to review your charge settings.

 

[redbaron]

@Joe Hogan keep in mind you have Lithiums which can pull 300A for charging if your charger is not setup correctly. Be sure to review your charge settings.

I don't know any charger that would be able to deliver more than 50amp. Of course, 50amp would be quite a bit, but only would occur if voltage had dropped.

 

[Neal]

I don't know the exact answer but I have 2 x Victron Multiplus, not sure what @Joe Hogan has.

https://www.victronenergy.com/upload/documents/Datasheet-Multiplus-inverter-charger_2kVA-and-3kVA-120V-US-EN.pdf

 

[redbaron]

I don't know the exact answer but I have 2 x Victron Multiplus, not sure what @Joe Hogan has.

https://www.victronenergy.com/upload/documents/Datasheet-Multiplus-inverter-charger_2kVA-and-3kVA-120V-US-EN.pdf

I see the confusion. DC output is up to 80Amps for 12v, but that does not mean it is drawing 80Amps of 120V AC power to generate it.

When expressed in watts you can get a rough idea

12v * 80amp = 960Watts
960Watts / 120V = 8 amps of 120V

 

[Neal]

My point was simply, and may be completely off, is that LiFePO4 batteries can pull a lot of AMPS if given them unlike FLA/AGM batteries. I doubt it's a cause but it's new to a lot of us, self included and the charger must be configured correctly or it can use quite a few amps...I believe.

 

[redbaron]

My point was simply, and may be completely off, is that LiFePO4 batteries can pull a lot of AMPS if given them unlike FLA/AGM batteries. I doubt it's a cause but it's new to a lot of us, self included and the charger must be configured correctly or it can use quite a few amps...I believe.

I understood what your point was.

I was attempting to add clarity that the batteries will take up to the charger MAX setting, but will never exceed the max setting.

To your point--Yes---if the charger is set to allow 20Amp of AC Load, then those batteries could take it all. They will not take 21 amps or higher...meaning it will not act like a dead short, but it will take everything you give it.

Hope that is clear as mud.

 

[Joe Hogan]

I don't know the exact answer but I have 2 x Victron Multiplus, not sure what @Joe Hogan has.

https://www.victronenergy.com/upload/documents/Datasheet-Multiplus-inverter-charger_2kVA-and-3kVA-120V-US-EN.pdf

We have two Victron MultiPlus inverters as well.

 

[Chuggs]

Ok Chuggs, flog me if I am wrong. I am not the most electrically savvy, but I believe 50A shore power gives you 50A at 120V on each leg. You should have energy to spare. Beware it may not be as much on the generator, depending on its size (10kw = 83 A, 41.5 on each leg).

No floggings from here forth to eternity.

 

[Chuggs]

We have two Victron MultiPlus inverters as well.

View attachment 25163

Dang that’s pretty! Love Victron porn. Is that a custom rack mount for double inverters?

 

[Joe Hogan]

Dang that’s pretty! Love Victron porn. Is that a custom rack mount for double inverters?

This is the Factory Li Ion option. Agree that it looks nice

 

[Wemustrv]

just to help avoid confusion you have a total of 50 amps available between the two legs. Each leg can handle 50 amps however the total draw for extended period is 50 amps not 100.

50 Amp RV Electrical System vs 30 AMP RV Electrical System​

• A 50-amp RV system provides 240 volts of electrical power, split into two 120-volt circuits, each with a separate hot wire (L1 and L2). The total amperage available is 50 amps, with 50 amps available on the two hot legs. This allows for 12,000 watts (50 amps x 240 volts) of electrical power.
• A 30-amp RV system provides 120 volts of electrical power with a total amperage of 30 amps available. This results in 3,600 watts (30 amps x 120 volts) of electrical power.
• Note that a 50-amp RV system has more outlets and wiring than a 30-amp one. 50-amp plugs can support multiple electrical devices, including high power-consuming ones (refrigerators, air conditioners, and electric ovens).

 

[MemoriesByTheMile]

Can you clarify why you say more than 50A cannot be drawn for extended periods of time?
IF the power draw is BALANCED across the 2 hot legs, a total of 100 amps at 120v can be pulled for prolonged amounts of time. My knowledge on this is - the need to be balanced is due to sharing a common/neutral which is the same sized wire gauge as each hot leg. But when power is balanced, the opposing legs are each of of phase, thereby cancelling each other out on the neutral, IF they are balanced.
For instance

• if leg 1 is pulling 20A and nothing is on leg 2, the neutral will show the full 20A flowing back
• If leg 1 is pulling 20A and leg 2 is pulling 20A, then each leg is allowing 20A to flow back on the neutral, but the 2 legs have opposing phases, so the neutral will show 0A in a perfect world
• If leg 1 is pulling 20A and leg 2 is pulling 15A, then the neutral will only show the amount of power that opposing phases are not cancelling, or 5A
• So, if leg 1 is pulling 45A and leg 2 is pulling 45A, this is a total of 90A being pulled on the hot, but neutral will show 0A. This can be done for prolonged periods of time.

This same principle of loading balancing is also in place within a typical sticks and bricks, 2 hot legs that share a neutral.

 

[redbaron]

just to help avoid confusion you have a total of 50 amps available between the two legs. Each leg can handle 50 amps however the total draw for extended period is 50 amps not 100.

50 Amp RV Electrical System vs 30 AMP RV Electrical System​

• A 50-amp RV system provides 240 volts of electrical power, split into two 120-volt circuits, each with a separate hot wire (L1 and L2). The total amperage available is 50 amps, with 50 amps available on the two hot legs. This allows for 12,000 watts (50 amps x 240 volts) of electrical power.
• A 30-amp RV system provides 120 volts of electrical power with a total amperage of 30 amps available. This results in 3,600 watts (30 amps x 120 volts) of electrical power.
• Note that a 50-amp RV system has more outlets and wiring than a 30-amp one. 50-amp plugs can support multiple electrical devices, including high power-consuming ones (refrigerators, air conditioners, and electric ovens).

Most rvs are not 240v. They are 100amps of 120v.

You can safely pull 98amps of 120v as long as each leg is limited to 49amps.

you can also do this all summer long without an issue. Ask me how I Know….been doing it for 15 years.

The circuit we plug into is a 50amp 240v, which is provided by 2 circuits of 50 amp 120v.

The Rv breaker panel does not have any breakers that span both legs, so each breaker is assigned Line 1 or Line 2.

When connected to 50amp 240v and used as describe above, you get 100amp 120v.

A 30amp plug has 1 line of 120v, so you lose 70amps of usable load in your Rv.

The dog leg adapters combine line 1 to line 2 so that all of your breakers have power. You must manage the draw to not exceed 30amps total.

 

[MemoriesByTheMile]

We have two Victron MultiPlus inverters as well.

View attachment 25163

Very nice!

 

[Kevin D Pem]

just to help avoid confusion you have a total of 50 amps available between the two legs. Each leg can handle 50 amps however the total draw for extended period is 50 amps not 100.

50 Amp RV Electrical System vs 30 AMP RV Electrical System​

• A 50-amp RV system provides 240 volts of electrical power, split into two 120-volt circuits, each with a separate hot wire (L1 and L2). The total amperage available is 50 amps, with 50 amps available on the two hot legs. This allows for 12,000 watts (50 amps x 240 volts) of electrical power.
• A 30-amp RV system provides 120 volts of electrical power with a total amperage of 30 amps available. This results in 3,600 watts (30 amps x 120 volts) of electrical power.
• Note that a 50-amp RV system has more outlets and wiring than a 30-amp one. 50-amp plugs can support multiple electrical devices, including high power-consuming ones (refrigerators, air conditioners, and electric ovens).

Would like to visit that site!!!

 

[Wemustrv]

Well,80 amps.

Explain the 80 amps. The circuit is rated at 50 amps. The total available amperage to the panel is 50 amps whether it is line one or two. If you exceed the 50 amps the main should trip.

 

[Kevin D Pem]

Breakers rated at 80% duty cycle! Notice the two 50 amp breakers are tied together? That keeps a 220vac load from having a hot wire if you trip it.

So 50amps per leg 100 amps Total. Times 80(80%) equals 80 amps. If neither leg exceeds the breakers limit!

That is why you should strive to balance the legs.