RV Surge Protectors
Don’t always trust campground power.
You might be surprised how often campground electrical service is unstable or even hazardous. Low voltage is the most common issue — especially when dozens of RVs are running their A/Cs on hot days. When voltage drops below safe thresholds (under 105 volts), your RV’s appliances are at risk of permanent damage.
What Is a Surge Protector and Why Do You Need One?
Your RV’s electronics are built to handle voltage in a range from 108V–132V. Outside of that, your fridge, air conditioner, microwave, and converter can get damaged. A surge protector guards against these voltage spikes or dips.
However, a basic surge protector only protects against power surges — not low voltage or miswiring. That’s why we recommend upgrading to an Electrical Management System (EMS).
What Can Damage My RV’s Electrical System?
Power Surges
Often caused by lightning, surges send too much electricity through your RV. A surge protector absorbs the hit, saving your onboard electronics from costly damage.
Low Voltage (Brownouts)
Common in peak summer months, low voltage happens when the campground’s power system is overloaded. It stresses your appliances — particularly your A/C — and can lead to burnout.
Wiring Issues
Older or improperly wired pedestals may deliver incorrect voltage or reversed polarity. Without protection, this can fry sensitive systems in your RV.
EMS vs. Standard Surge Protector
Standard Surge Protector: Protects only against power surges. Think of it like a power strip for your RV.
EMS (Electrical Management System): Detects multiple electrical issues — high/low voltage, miswiring, reversed polarity — and disconnects power when needed to protect your coach.
Portable vs. Permanent Install
Portable: Easy to use, plug-and-play setup at each campground pedestal.
Permanent: Hardwired into your RV for set-it-and-forget-it protection. Must be installed in a non-combustible, metal-lined compartment.
We always recommend carrying a digital voltage meter to test power before plugging in. It’s a cheap way to avoid expensive damage.
Final Thoughts
A surge protector — ideally an EMS — is a smart, low-cost way to protect thousands of dollars in RV electronics. If you have questions or want help choosing the right unit, our Parts Department is ready to assist. Call 1-800-265-9019 or shop online.
