Completed on August 28, 2026

Outdoor Weatherproof Wallbox

Robust exterior EV charging deployment featuring stainless steel conduit infrastructure, heavy-duty surge suppression, and all-weather NEMA 4X rated enclosure hardware.

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Project Highlights
  • Location Category Exterior Residential Driveway
  • Compliance Level 100% Code Verified
  • System Type NEMA 4X 48A Dedicated Wallbox
  • Inspection Status Certified Passed
Outdoor Weatherproof Wallbox

Project Overview & Objectives

Open driveways demand an electrical installation that treats harsh weather as a primary engineering factor. The homeowner needed a high-output charging station mounted directly onto an exterior structural brick facade, exposed continuously to driving rain, snow accumulation, and summer UV exposure without garage sheltering.

Technical Engineering & Execution

Our team calculated the total continuous draw on the existing 200A service panel, reserving 60A exclusively for a sustained 48A charging throughput. We penetrated the masonry perimeter using core-drilled waterproof sleeves, sealing every exterior ingress point with marine-grade elastomeric gaskets. Liquid-tight metallic conduit routes power smoothly from the basement disconnect switch right to the exterior terminal block, preventing moisture migration and internal condensation buildup across rapid temperature shifts.

  • Dedicated continuous duty circuit design and panel inspection
  • High-amperage industrial conduit routing with zero structural impact
  • Smart dynamic load balancing configuration to prevent grid overload
  • Complete municipal permit acquisition and final utility sign-off

Results & Performance

The completed installation delivers reliable 11.5 kW overnight charging regardless of ambient humidity or sub-zero winter temperatures. Integrated ground-fault circuit interrupters provide instant safety disconnection under abnormal thermal or wet conditions, giving the homeowner peace of mind and complete charging freedom.

Power Output Configuration 11.5 kW (240V AC / 48A Continuous)
Breaker Amperage 60 Amp 2-Pole GFCI Breaker
Conduit Routing Distance 42 Feet Liquid-Tight Flexible EMT
Load Management System Automated Cloud Power Limiting Relay
Enclosure Weatherproof Rating NEMA 4X / IP66 Water & Dust Seal
1
Exposure & Mounting Survey
Assessing wall material, drainage, sun exposure, and cable reach for the exterior location.
2
Weatherproof Conduit & Gasket Sealing
Routing UV-rated conduit with drip loops, sealed penetrations, and corrosion-resistant fittings.
3
Storm-Test Commissioning
Verifying NEMA 4 sealing, GFCI response, and cold-start charging in ambient conditions.
Outdoor Installation Standards

Exterior installations meet NEC wet-location requirements with NEMA 4 enclosures, GFCI protection, and in-use covers rated for direct rain and snow.

Yes. The NEMA 4-rated enclosure, sealed conduit, and integrated ground-fault protection are engineered for all-weather operation.
The unit operates from -22F to 122F, the cable stays flexible, and charging simply draws slightly more power to warm the battery.
Yes. We install freestanding pedestals with buried conduit, a common layout for driveways and detached garages.