Power Watchdog

Power Watchdog 50A WiFi Replacement Surge Module RSM50W — 50‑Amp RV surge protection & remote monitoring

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$79.98

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Why customers choose NorthTrail Auto

The Power Watchdog RSM50W WiFi Replacement Surge Module is a 50-amp plug-in replacement module that restores surge protection and remote monitoring for compatible Power Watchdog RV surge protector units.

The RSM50W is a factory-style replacement module designed to fit Power Watchdog enclosures and deliver surge suppression, diagnostics, and WiFi-enabled status reporting to maintain electrical safety for 50-amp RV power systems. It replaces a worn or damaged module without changing the protector housing, restores full monitoring features, and helps you quickly see the unit’s status through the Power Watchdog app or compatible indicators when installed in an existing system.

How does this module restore surge protection to my RV?

Installing the RSM50W replaces the internal electronics responsible for sensing hazardous conditions and diverting surges. Once seated in the Power Watchdog base, it re-enables the protector’s fault detection and surge-handling circuits so the unit can block harmful voltage events.

  • Direct swap for compatible Power Watchdog housings — no new enclosure required
  • Restores surge suppression and fault sensing for 50A service
  • Reinstates internal diagnostics and protection LED/status outputs

What does the WiFi feature let me do?

The RSM50W includes WiFi connectivity so the module can report status, alerts, and historical events to the Power Watchdog cloud and app. That lets you monitor incoming power conditions remotely and receive notifications when a fault or disconnection occurs.

  • Real-time status updates in the Power Watchdog app
  • Remote alerts for open neutral, open ground, surge events, and power loss
  • Event logging for later review or troubleshooting

Is this the right module for my RV's electrical setup?

Use the RSM50W if your RV uses a 50-amp shore power connection and your Power Watchdog base is compatible with the RSM series replacement modules. It’s built for standard 50A recreational vehicle electrical systems and matches the original form factor of Power Watchdog modules.

  • Intended for 50-amp RV shore power systems (240V split-phase)
  • Fits Power Watchdog enclosures that accept RSM-series modules
  • Not intended for 30A or non-Power Watchdog housings

How do I install and test the replacement module?

Installation is a straightforward swap: power down and unplug the protector, remove the old module per the manufacturer's instructions, insert the RSM50W, and power up. Verify LED indicators and connect to WiFi through the Power Watchdog app to confirm remote reporting.

  • Always disconnect shore power before replacing the module
  • Seat the module firmly in the base and secure any retaining hardware
  • Use the app to complete WiFi setup and confirm status readouts

Who is this for: The Power Watchdog RSM50W WiFi Replacement Surge Module is for RV owners and fleet operators who already have a Power Watchdog protector housing and need a factory replacement to restore 50-amp surge protection and WiFi monitoring. It suits those who want quick, compatible repairs without replacing the entire enclosure and who value remote visibility into shore-power conditions.

FAQ

Q: Will the RSM50W fit my existing Power Watchdog unit?

A: If your protector accepts RSM-series modules and uses 50-amp hardware, the RSM50W is a direct-fit replacement. Check your unit model for compatibility.

Q: Do I need to hire an electrician to install it?

A: You should disconnect shore power before swapping modules; many owners can install it safely, but hire an electrician if you’re unsure about electrical procedures.