TOWTAMER

TOWTAMER 18,000J 50A RV Surge Protector with LED Voltage Display and IP68 Weatherproof Cover

High-performance automotive accessories made for confident daily results

$94.98

3 shoppers currently have this item in cart.

Low stock: only 10 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium automotive accessories quality selected for Canada customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Share

Why customers choose NorthTrail Auto

The TOWTAMER 18,000J 50 Amp surge protector is a heavy-duty RV power safety device that blocks large power spikes, diagnoses wiring faults, and displays real-time voltage via a clear LED readout.

Designed for RV owners who plug into campgrounds, marinas, or remote shore power, this 50A surge protector balances robust surge suppression with easy-to-read diagnostics. It offers an industry-leading 18,000 joules of surge energy absorption, checks for common wiring problems before you connect, and houses electronics behind a weatherproof IP68 cover for reliable outdoor performance.

How does it protect my RV electronics from power surges?

TOWTAMER's unit diverts and absorbs sudden voltage spikes up to 18,000 joules to reduce the risk of damage to appliances and control boards. The device is engineered to clamp dangerous transients and disconnect when fault conditions are detected.

  • 18,000J surge absorption rating for high-energy events
  • Automatic disconnect when protection components are exhausted
  • Fits standard 50 Amp RV shore-power plugs for instant protection

What diagnostics does the LED display provide?

The bright LED screen shows measured incoming voltage and simple error codes so you can evaluate supply quality at a glance. This helps you decide whether it's safe to connect or if an outlet has wiring problems that need attention.

  • Real-time voltage readout for incoming shore power
  • Error codes that identify open ground, reverse polarity, and other faults
  • Temperature monitoring to warn of unsafe operating conditions

Is it built to withstand outdoor conditions year-round?

Yes — the surge protector is housed behind an IP68-rated waterproof cover that resists rain, dust, and splashes while keeping the internal electronics dry. The roomy enclosure also accommodates most 50A RV plugs without forcing connections.

  • IP68 weatherproof cover for protection in harsh outdoor environments
  • Interior opening sized at approximately 2.2" wide x 3" high for common plug types
  • Durable construction intended for frequent outdoor use

What warranty and support are included?

TOWTAMER backs this surge protector with a lifetime assurance against manufacturing defects and a 30-day return window. That support helps ensure buyers can rely on long-term protection and get help if something is wrong out of the box.

  • Lifetime protection against defects in materials and workmanship
  • 30-day return policy for risk-free evaluation
  • Customer support available for diagnostics and replacement guidance

Who is this for: This surge protector is aimed at RV owners, towable campers, and fleet operators who require high-capacity, dependable shore power protection and clear diagnostics. It's especially valuable for people who frequently stay at different parks or docks and want fast visual verification of power quality before connecting sensitive electronics and appliances.

FAQ

Q: Does this work with all 50 Amp RV plugs?

A: Yes. The TOWTAMER 50A surge protector fits standard 50 Amp RV shore-power plugs and its interior space accommodates most plug sizes.

Q: What does the LED display show?

A: The LED gives real-time incoming voltage and error codes for issues like open ground, reverse polarity, and temperature warnings.