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Shore power

Can You Run An electric kettle and a toaster on 30 amp RV Service?

Researched from published standards and manufacturer specifications. Updated .

Quick answer

Yes. Running an electric kettle and a toaster draws about 2,700 watts, and 30 amp RV service supplies 3,600 watts (NEMA TT-30). That leaves about 900 watts of headroom for everything else in the rig.

Short loads, but they overlap at breakfast. The arithmetic on a pedestal is simple once you know what the service actually supplies, and that is where most of the confusion sits.

A 30 amp RV service is a single 120 volt leg at 30 amps, which is 3,600 watts. A 50 amp service is two separate 120 volt legs at 50 amps each, which is 12,000 watts. A 50 amp pedestal is therefore more than three times a 30 amp one, not 67 percent more. Work out your own combination on the shore power budget calculator.

Does an electric kettle and a toaster fit on 30 amp service?

an electric kettle and a toaster against 30 amp RV service
FigureValueNotes
Service deviceNEMA TT-30One 120V leg
Total available3,600 W30A at 120V
This load2,700 WAbout 22.5 A at 120V
Headroom remaining900 WWithin the service

Published standard Source: NEMA TT-30 device rating.

What else can you run alongside it?

With 900 watts left, this is what still fits.

What fits in the remaining 900 watts
ApplianceRunning wattsFits in the headroom
RV air conditioner, 13,500 BTU1,400 WNo
RV air conditioner, 15,000 BTU1,700 WNo
Residential refrigerator150 WYes
12V compressor refrigerator45 WYes
Microwave, 1000W output1,500 WNo
Electric kettle1,500 WNo
Coffee maker, drip900 WYes
Toaster1,200 WNo
Induction cooktop, single burner1,800 WNo
Space heater, low setting750 WYes
Space heater, high setting1,500 WNo
Hair dryer1,500 WNo

Convention Source: Typical published draws. Read the data plate on your own appliances..

Would 50 amp service change the answer?

Yes. A 50 amp pedestal supplies 12,000 watts against 3,600 on 30 amp, which would leave about 9,300 watts of headroom rather than 900. That is the difference between running one air conditioner carefully and running two without thinking about it.

An adapter does not change any of this. A dogbone adapter changes the plug shape and nothing else. A 50 amp rig on a 30 amp pedestal has 30 amps total for the whole coach, and a 30 amp rig on a 50 amp pedestal still has 30 amps.

How do you stop tripping the pedestal?

Sequence the loads rather than adding capacity. Switch the water heater and the fridge to propane, which frees up over a kilowatt between them. Run the microwave or the kettle only while the air conditioner is between cycles. Fit a soft starter so the air conditioner startup surge stops tripping the breaker even when the running load fits comfortably.

A surge protector with an electrical management system also guards the other direction. Parks with sagging voltage under summer load damage compressors quietly, and an EMS disconnects before that happens.

30 amp shore power protection

Frequently asked questions

Can I run an electric kettle and a toaster on 30 amp RV service?
Yes. It draws about 2,700 watts and 30 amp service supplies 3,600 watts, leaving roughly 900 watts for everything else. Watch the startup surge rather than the running figure, because a compressor starting can briefly draw twice its running load and that is what trips a breaker.
How many watts is 30 amp RV service?
3,600 watts. A 30 amp RV service is a single 120 volt leg at 30 amps, which is 3,600 watts. It is not 240 volts, despite the large plug.
Does a 50 to 30 amp adapter give me more power?
No. An adapter changes the plug configuration and nothing else. Plugging a 30 amp rig into a 50 amp pedestal still limits you to 30 amps, because the rig's own inlet, cord and main breaker are all 30 amp rated. Going the other way, a 50 amp rig on a 30 amp pedestal has 30 amps total for the entire coach across both legs.
Why does my breaker trip even though the math says it fits?
Startup surge. A motor draws far more current for the first fraction of a second than it does running, and an air conditioner compressor can briefly pull more than twice its running load. A pedestal breaker sees that spike. A soft starter reduces the inrush substantially and is usually cheaper than any other fix.

Shore power safety. An adapter never increases the amperage available to you. Test a pedestal before connecting, or fit a surge protector with an electrical management system that checks for open ground, reverse polarity and out of range voltage and disconnects on its own. Low voltage damages motors and compressors just as surely as a surge does.