The Actual Difference
A 30-amp shore connection is a single 120V leg — roughly 3,600 watts total available. A 50-amp connection is two separate 120V legs (100 amps total across both) — roughly 12,000 watts available, more than triple. That...
Electrical guide
30-amp vs 50-amp shore power explained
50-amp service isn’t “more current on one wire” — it’s a fundamentally different hookup. Here’s what that means for what you can actually run. A 30-amp shore connection is a single 120V leg — roughly 3,600 watts total av...
Active corridor: Montana · Wyoming · Idaho · Washington — case-by-case beyond.
Field notes
50-amp service isn’t “more current on one wire” — it’s a fundamentally different hookup. Here’s what that means for what you can actually run. A 30-amp shore connection is a single 120V leg — roughly 3,600 watts total available. A 50-amp connection is two separate 120V legs (100 amps total across both) — roughly 12,000 watts available, more than triple. That’s why a 30-to-50 or 50-to-30 dogbone adapter doesn’t turn a 30-amp pedestal into 50-amp power; it just lets the plug fit. The actual amperage available is s...
Why 30-Amp Rigs Trip Breakers Running Two ACs
On 30-amp service, running the AC, microwave, and water heater element at the same time is often enough to trip the pedestal breaker — there simply isn’t enough total wattage available. This isn’t a malfunction; it’s ...
Protect the Connection Either Way
Whichever service you have, a surge protector with voltage monitoring is the cheapest insurance against a bad pedestal — see our surge protector buying guide. Low voltage from an overloaded campground pedestal quietly...
Related
Surge Protector & EMS Buying GuideElectrical & Shore Power TroubleshootingElectrical & Power SystemsBack to Field Guide
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Pricing teaser
Trip fee $75 within 30 miles, then $1.50/mi. Labor ~$150/hr (1-hour minimum, billed in 30-minute increments). Diagnostic $150 applied toward repair if you proceed.
Active corridor: Montana · Wyoming · Idaho · Washington — case-by-case beyond. Credentials (text): Victron Professional Certified Installer · weBoost Authorized Installer · Peplink Certified Associate · Dometic Professional Certified.