Blog - Sun Amp RV

RV Fuse & Breaker Sizing: a Complete Install Guide

Gather tools and safety gear: Collect tools, materials, and safety gear before opening any panel or junction box.

Gather tools and safety gear: Collect tools, materials, and safety gear before opening any panel or junction box.

Sum continuous watts: List every AC load you run simultaneously and add a safety margin appropriate to your load profile.

Best Overall: Victron Phoenix Inverter — Boondockers who want proven reliability and clean, stable AC output

Best Overall: Renogy Solar Starter Kit — First-time installers who want the widest documentation and community support

Best Overall: Victron SmartSolar MPPT — RVers who want one controller family that works whether they settle on a 12V or 24V battery bank

Check input limits first: Verify your array’s cold-weather open-circuit voltage stays within the controller’s maximum input rating.

Read the full guide first: Read the full guide before starting — each step builds on the one before it.

Best Overall: Victron SmartSolar MPPT — Full-time boondockers who want maximum daily harvest and room to grow the array

Best Overall: Victron SmartShunt — RVers who want a proven, widely supported shunt monitor with a large user community.