Can You Monitor Each Leg Separately To Check Power Balance Of 50A Surge Protector For 5th Wheel RV?

Updated 09/24/2025 | Published 09/23/2025

Question:

We’ve got a 2021 Montana fifth wheel with 50 amp service. If I use the HU74ZR, can I monitor both legs of power separately in the app?

asked by: Cher

Expert Reply:

Yes Cheryl, with the # HU74ZR 50A you’ll see volts and amps for each leg (L1 and L2) individually, both on the display screen and in the app. That’s especially helpful if one leg is sagging under load while the other looks fine. The booster will step in automatically if either side drops too low, and you’ll know at a glance how balanced your rig is. That's super handy for if any issues ever arise at a campground where their power is unstable.

Would you like me to walk you through how to read the per-leg info in the app?

expert reply by: Andrew N