Southwire / Surge Guard (30AMP)

Overview

The Southwire Surge Guard 30A Portable Surge Protector is designed to protect your RV’s electrical system from power surges, faulty wiring, open neutrals, and other potentially damaging campground power conditions. Built for 30-amp RV service, it continuously monitors voltage and amperage, disconnecting power automatically when unsafe conditions are detected.

Compact yet rugged, it’s an essential layer of defense against unpredictable campground hookups, helping safeguard sensitive electronics, converters, and HVAC components from costly damage.

Key Features

• Advanced surge protection rated for up to 2,100 joules
  
• Monitors voltage, frequency, and open ground / neutral conditions
  
• Automatically disconnects during unsafe power events and reconnects when stable
  
• LED indicator lights provide clear fault diagnostics
  
• Weather-resistant, portable design with easy-grip plug and locking ring
  
• UL-listed and designed for outdoor RV use
  

RV Use Cases

• Use at all campground power pedestals before connecting your RV’s main cord
  
• Protect onboard electronics (TVs, inverter chargers, control boards) from surge or low voltage
  
• Use during inspection or troubleshooting to verify pedestal wiring safety before energizing the RV
  
• Keep inline during seasonal or full-time stays for constant electrical monitoring
  

Common User Feedback

Pros:

• Highly effective surge and wiring protection
  
• Easy to read LED fault indicators
  
• Portable design allows use across multiple rigs or power sources
  
• Prevents costly component damage from bad campground wiring
  

Cons:

• Not Bluetooth or app-enabled (requires manual reading of indicator lights)
  
• Some users prefer hardwired versions for theft protection
  
• Slightly bulky design may crowd tight power pedestals
  

Best Practices

1. Always test the pedestal first with the Surge Guard before plugging in the RV.
   
2. Check LED indicators for faults (open neutral, reverse polarity, etc.) before allowing power to pass through.
   
3. Keep connectors clean and dry; use dielectric grease for long-term outdoor storage.
   
4. Do not bypass or ignore warning lights—disconnect immediately if unsafe power is indicated.
   
5. Store indoors when not in use to extend service life and maintain seal integrity.
   

Inspector’s Note (RV Pro Solutions Insight)

As an NRVIA Inspector, I consider a surge protector like this a non-negotiable, day-one piece of RV gear. I’ve seen control boards, inverters, and A/C units destroyed by unregulated campground voltage. The Southwire 30A Surge Guard provides real-time protection and peace of mind—an affordable insurance policy for your RV’s entire electrical system.