Read This Before Replacing Your RV Inlet: How to Identify the Right One

Replacing the power inlet on your RV might seem like a simple task, but choosing the wrong one can leave you without power when you need it most. Before you start unscrewing and rewiring, it’s crucial to identify the type of inlet your RV has. In this guide, we’ll walk you through the differences between two commonly confused inlets—the L5-30 and the SS2-50—and show you how to choose the right replacement for your RV.

Why Identifying Your RV Inlet Matters

Your RV’s power inlet is the gateway to keeping all your appliances, lights, and devices running while you’re on the road. But not all inlets are created equal. Using the wrong one can lead to:

• Insufficient power for your RV’s needs

• Damage to your electrical system

• Safety hazards like overheating or short circuits

That’s why it’s so important to know exactly what type of inlet your RV has before you make a replacement.

Common Types of RV Inlets

RVs can have several types of power inlets, including:

• 5-20

• TT-30

• 14-50

However, the most common inlets—and the ones we’re focusing on today—are the L5-30 and the SS2-50. These two look very similar at first glance, but they’re designed for completely different power needs.

L5-30 vs. SS2-50: What’s the Difference?

At first glance, the L5-30 and SS2-50 inlets might look almost identical. But here’s how they differ:

L5-30 Inlet

• Amp Rating: 30 amps

• Voltage: 125V

• Wattage: Up to 3,750 watts

• Prongs: 3 prongs (hot, neutral, ground)

• Best For: Small to medium-sized RVs

SS2-50 Inlet

• Amp Rating: 50 amps

• Voltage: 125V/250V

• Wattage: Up to 12,500 watts

• Prongs: 4 prongs (2 hots, neutral, ground)

• Best For: Larger RVs with higher power demands

The “Hidden” Prong

You might be wondering: If the L5-30 has 3 prongs and the SS2-50 has 4, how do they look so similar? The answer lies in the SS2-50’s design. It has a “hidden” prong on the outer ring of the inlet, which isn’t immediately obvious. This extra prong is what allows it to handle more power.

How to Identify Your RV’s Inlet

Before you start shopping for a replacement, you’ll need to figure out which type of inlet your RV has. Here’s how:

1. Count the Prongs

• 3 prongs? It’s likely an L5-30.

• 4 prongs? You’re probably looking at an SS2-50.

2. Check the Amp Rating

• Look for labels or markings near the inlet. Most inlets will have their amp rating printed somewhere.

3. Measure the Voltage

• If you’re still unsure, use a multimeter to check the voltage.

How to Replace Your RV Inlet

Once you’ve identified your inlet, replacing it is a straightforward process. Here’s a step-by-step guide:

1. Remove the Old Inlet

• Unscrew the three screws holding the inlet in place.

• Carefully disconnect the wires from the back.

2. Install the New Inlet

• Connect the wires to the new inlet (hot, neutral, and ground for L5-30; two hots, neutral, and ground for SS2-50).

• Secure the new inlet with the screws.

Pro Tip: Double-check your wiring before you screw everything back in. If you’re not comfortable doing this yourself, don’t hesitate to call a professional.

Why Choose AC WORKS RV Inlets?

At AC WORKS, we understand how important reliable power is for your RV adventures. That’s why we offer high-quality inlets like the RVINL530 (L5-30) and SS2-50, designed to keep you powered up on the road. Our products are built to last, easy to install, and backed by fast shipping and 24/7 support.

Final Thoughts

Replacing your RV’s power inlet doesn’t have to be a guessing game. By identifying the type of inlet you have and choosing the right replacement, you can ensure your RV stays powered up and ready for your next adventure.

If you’re ready to upgrade your RV inlet, head over to ACWORKS.com to explore our full range of products. And if you found this guide helpful, be sure to check out our other resources on RV power, adapters, and generator cords.

Stay powered up, and happy travels!