Southwire / Surge Guard (50AMP)

Overview

The 50A wireless Surge Guard portable surge protector is engineered to protect higher amperage RVs from electrical faults and power anomalies at campground pedestals. It offers wireless remote monitoring of power conditions from inside your RV, giving real-time feedback on voltage, open grounds, polarity issues, and more. This allows you to verify safe power before energizing your entire rig.

It takes on the same protection duties as fixed EMS units—disconnecting power when dangerous conditions are detected—and adds convenience by letting you monitor via a display/panel inside. It’s an ideal balance of mobility, security, and real-time diagnostics for full-size rigs.

Key Features

• Full electrical protection: surge suppression, over/under voltage cutoffs, open ground / neutral detection, polarity errors
  
• Wireless remote display or communication so you can monitor from inside your RV
  
• Rugged, weather-resistant plug body suited for outdoor pedestal conditions
  
• LED or digital readouts to indicate safe or fault states
  
• Automatic reconnect once conditions return to safe ranges
  
• 50A capacity makes it suitable for larger RVs and class A / diesel pusher systems
  

RV Use Cases

• Use at campground or park power pedestals for 50A hookups
  
• Monitor and verify electrical safety from inside your RV before engaging sensitive systems
  
• Protect onboard electronics (inverter, converter, appliances) from pedestal fault conditions
  
• Portable unit can be moved between rigs if you have multiple 50A setups
  

Common User Feedback

Pros:

• Wireless monitoring is very convenient (no need to walk to the pedestal to check)
  
• Adds important protection to higher-amp systems
  
• Clear LED / indicator feedback helps diagnose wiring faults at the pedestal
  
• Portable design gives flexibility
  

Cons:

• Typically more expensive than basic (wired or 30A) surge protectors
  
• Wireless range might be limited in certain layouts or with obstacles
  
• Bulkier at the plug end—may crowd tight power pedestals
  
• If wireless module fails, you might lose the remote reading feature
  

Best Practices

1. Always insert the surge protector before plugging your RV’s shore power cable.
   
2. Check the wireless remote/display for green “safe” status before connecting power to your RV.
   
3. Keep the plug and display unit clean and dry; apply dielectric grease if recommended by the manufacturer.
   
4. Avoid stretching or bending the cable sharply near the plug—protect the strain relief.
   
5. Store indoors when not in use or during winter to extend life of the wireless components.
   

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.

I find many owners undervalue portable 50A surge protection, especially those that forego remote displays. This model with wireless monitoring is a superior option for safety and convenience—letting you confirm safe power from your living area. For full-size rigs, this is one of the most user-friendly ways to add a layer of defense against bad pedestal power. Just be sure to test your wireless link during setup and routinely check status LEDs before full activation.