Southwire Surge Guard 34931 30 Amp Full Protection Portable RV Surge Protector with Optional Wireless Communication

Description

Southwire Surge Guard 34931 is a portable 120-volt, 30 amp full-protection RV power protector designed to monitor campground power before it reaches your RV. It provides 2,450 joules of surge protection and automatically disconnects power when unsafe electrical conditions are detected.

Unlike a basic diagnostic surge protector that only identifies certain pedestal problems, the Southwire Surge Guard 34931 continuously monitors incoming power, displays voltage and amp draw, and protects against problems originating at the campground pedestal or within the RV electrical connection.

Southwire Surge Guard 34931 Full RV Power Protection

The Southwire Surge Guard 34931 provides protection against several electrical conditions that can affect a 30 amp RV connection:

• Power surges
• Open ground
• Open neutral
• Low voltage below 102 volts
• High voltage above 132 volts
• Reverse polarity
• Miswired campground pedestal
• Overheating at the plug or receptacle
• Elevated ground-line current
• Low or high electrical frequency

When a monitored condition falls outside the unit’s operating limits, the protector disconnects power rather than allowing unsafe campground electricity to continue flowing into the RV.

Continuous Voltage and Amp Monitoring

The built-in English-language LCD display continuously shows RMS voltage and amp draw. This gives the RV owner more information than a basic LED diagnostic chart and helps identify changing electrical conditions while appliances are operating.

The Southwire Surge Guard 34931 also uses multi-mode surge suppression to absorb damaging voltage spikes. Its 2,450-joule rating is designed for 120-volt, 30-amp RV electrical service.

Automatic Power Restoration and Air-Conditioner Protection

After acceptable power is restored, the unit automatically resets. A 10-second startup sequence allows the protector to analyze the incoming connection before supplying power to the RV.

The 128-second reset delay helps protect the RV air-conditioning compressor by preventing power from being restored immediately after an interruption. This delay gives system pressure time to equalize before the compressor attempts to restart.

Optional Wireless Monitoring

The Southwire Surge Guard 34931 is compatible with the optional Southwire 40301 Wireless LCD Display. The wireless display is sold separately and allows compatible power information and fault conditions to be viewed from a more convenient location in or around the RV.

The 34931 includes its own built-in LCD display and does not require the optional wireless display to provide full electrical protection.

Key Features of the Southwire Surge Guard 34931

• 120-volt, 30-amp RV electrical service
• 2,450 joules of surge protection
• Full protection from faulty campground power
• Automatic power disconnection during unsafe conditions
• Continuous RMS voltage and amp-draw display
• Low- and high-frequency protection
• Overheating plug and receptacle protection
• Automatic reset after acceptable power is restored
• 10-second startup sequence
• 128-second air-conditioner compressor reset delay
• Multi-mode surge suppression
• Commercial-grade brass receptacle
• English-language LCD display
• Easy-T-Pull™ handles
• Anti-theft lock ring built into the cord
• Compatible with the optional 40301 Wireless LCD Display
• Portable installation with no permanent hardwiring required

Is the Southwire Surge Guard 34931 Right for Your RV?

This model is intended for RVs equipped with a standard 120-volt, 30-amp shore-power connection. A typical 30 amp RV plug has three prongs.

The Southwire Surge Guard 34931 may be the right choice when:

• Your RV uses 30 amp shore power
• You want automatic protection rather than diagnostic indicators alone
• You want continuous voltage and amp-draw monitoring
• You want protection from low and high voltage
• You want automatic power restoration after acceptable conditions return
• You want a portable protector rather than a hardwired installation
• You may want to add optional wireless monitoring
• You frequently connect to unfamiliar campground pedestals

Who Should Consider a Different Model?

The Southwire Surge Guard 34931 is not intended for an RV with a 120/240-volt, 50-amp, four-prong shore-power connection. A 50 amp RV requires a properly matched 50 amp protector, such as the Southwire Surge Guard 34951.

This model is also not the right choice when you want a permanently installed hardwired protector. Southwire offers separate full-protection hardwired models for owners who prefer an installation inside the RV electrical system.

Southwire 34931 Compared with an Enhanced-Diagnostics Protector

An enhanced-diagnostics model such as the Southwire Surge Guard 44280 identifies campground wiring and power conditions using an LED fault chart and provides 2,100 joules of surge protection.

The Southwire Surge Guard 34931 provides a higher level of protection. It continuously monitors voltage and amp draw, disconnects power during low voltage, high voltage, frequency problems, and other unsafe conditions, and restores power automatically when acceptable conditions return.

Choose an enhanced-diagnostics model when you primarily need pedestal testing and surge protection. Choose the 34931 when you want automatic power management and full electrical protection for a 30 amp RV.

Common Questions About the Southwire Surge Guard 34931

Does the 34931 automatically shut off unsafe power?
Yes. It disconnects power when monitored electrical conditions fall outside acceptable operating limits.

Does it protect against low and high voltage?
Yes. The manufacturer lists protection below 102 volts and above 132 volts.

Does it show how much current the RV is using?
Yes. The built-in LCD continuously displays RMS voltage and amp draw.

Does it restore power automatically?
Yes. It automatically resets when acceptable power conditions return.

Why is there a 128-second reset delay?
The delay helps protect the RV air-conditioning compressor after power has been interrupted.

Is wireless monitoring included?
No. The 34931 is compatible with the optional Southwire 40301 Wireless LCD Display, which is sold separately.

Does it require a permanent installation?
No. It is a portable unit that connects between the campground pedestal and the RV shore-power cord.

Can it be used with a 50 amp RV?
No. It is designed for 120-volt, 30-amp RV electrical service.

Learn More About Southwire RV Power Protection

Visit the official Southwire RV power protection website for manufacturer information, or browse our RV surge protectors to compare portable, hardwired, 30 amp, and 50 amp options.

Need Help Choosing the Correct 30 Amp RV Power Protector?

Choosing between basic diagnostics, enhanced diagnostics, and full electrical protection depends on your RV, shore-power connection, and the conditions you want monitored. Request a quote and provide your RV’s year, make, model, and power connection. We’ll help confirm whether the Southwire Surge Guard 34931 is the right model before you order.