Inside RVShield

The science
behind the shield.

Surge capacity is only the beginning. RVShield evaluates campground power, tracks operating conditions, explains faults, and controls when your RV receives power.

Large front detail of the RVShield RVPM-30A
RVShield monitoring campground power between a pedestal and an RV
Surge protection

4,200 joules.
Three modes.

Three protection paths respond across line, neutral, and ground before power continues to the RV.

L–N

Hot-to-neutral transient path.

L–G

Hot-to-ground transient path.

N–G

Neutral-to-ground transient path.

Professional diagram showing RVShield line-to-neutral, line-to-ground, and neutral-to-ground surge protection paths
Compressor protection

A/C delay.
Your choice.

Choose an immediate, 30-second, or 180-second restart after power returns, based on the requirements of your connected equipment.

0 seconds

Immediate output when the A/C or controller already provides the required internal delay, or for loads that do not need compressor protection.

30 seconds

A short buffer that does not replace a longer manufacturer-specified restart interval.

180 seconds

A full three-minute compressor-protection delay after loss and restoration of power.

RVShield adjustable zero, thirty, and one hundred eighty second air-conditioner delay at a campsite
Continuous monitoring

Nine threats.
Always checked.

RVShield checks the connection before energizing your RV, then keeps watching while you camp. When a dangerous condition appears, it interrupts output and identifies the cause.

RVShield nine-layer protection system between a power pedestal and an RV
>132V · Trips power

High Voltage

Excess campground voltage can burn motor windings and damage air conditioners, refrigerators, and control boards. RVShield interrupts output before sustained high voltage reaches the RV.

<104V · Trips power

Low Voltage

Low voltage makes motors draw more current, creating excess heat and shortened compressor life. RVShield disconnects the source until voltage returns to a safe range.

<52Hz or >69Hz · Trips power

Frequency Out of Range

Unstable generator or campground frequency can affect motor speed and timing-sensitive equipment. Output is interrupted when frequency leaves the accepted window.

Detected · Trips power

Open Ground

A missing safety ground leaves fault current without its intended path and can make the RV chassis hazardous. RVShield blocks output and identifies the pedestal fault.

Detected · Trips power

Open Neutral

A broken neutral can create unstable or dangerous circuit voltage and damage connected appliances. RVShield prevents the questionable source from feeding the RV.

Detected · Trips power

Reverse Polarity

Hot and neutral reversed at the pedestal can energize surfaces expected to be near neutral potential. RVShield detects the wiring error and keeps output off.

>30A for 3s · Trips power

Overcurrent

A sustained load above 30A overheats wiring, plugs, and worn connections. RVShield disconnects output before the overload continues feeding heat into the hookup.

200°F / 93°C · Trips power

Overtemperature

Heat from a loose or worn connection can build without a lightning event. At the thermal threshold, RVShield cuts output instead of allowing the condition to progress.

30mA · Trips power

Ground Fault Leakage

Damaged insulation, moisture, or a failing appliance can send current along an unintended path. RVShield detects equipment-level leakage and disconnects output.

RVer checking RVShield live readings and fault codes at a campground pedestal
Fault-code reference

Ten codes.
Zero guessing.

Each code turns an electrical condition into a clear next step.

CodeConditionWhat to do
E0Reverse polarityDo not use the pedestal until its wiring is corrected.
E1Ground fault / leakageDisconnect loads and inspect RV wiring and appliances.
E2High voltageWait for voltage to return to the safe window.
E3Low voltageReduce load or move to a stable pedestal.
E4Over currentReduce connected load below the 30A rating.
E5Over temperatureRemove load and allow the device and connection to cool.
E6Open groundDo not use the pedestal; contact campground staff.
E7Low frequencyDisconnect from the unstable or overloaded power source.
E8High frequencyDisconnect from the non-standard power source.
Err0Internal faultPower cycle the unit; contact support if the code persists.
Thermal safety

200°F.
Then it stops itself.

Heat at a worn receptacle or loose connection can build without a dramatic surge. RVShield monitors internal temperature and interrupts output at the thermal threshold instead of continuing to feed a dangerous connection.

Diagram showing RVShield detecting an overheated connection and interrupting RV output
Diagram showing RVShield detecting leakage current to ground and protecting RV output
Leakage protection

30mA ground-fault detection.

Leakage current can take an unintended path through damaged wiring, moisture, or a failing appliance. RVShield watches for this condition and disconnects output when the threshold is reached.

System overview

The protection path.

Pedestal → RVShield evaluation and monitoring → controlled output → your RV. The power manager stays between the source and the equipment you want to protect.

Before connection

Wiring and source conditions are evaluated before output is energized.

During the stay

Electrical and thermal conditions remain under continuous watch.

After a fault

Output stays controlled, the code explains the issue, and the selected delay manages restart.

Engineering you can use

See it all in
the RVPM-30A.