
EZ Solar Rooftop PV J-Box (Asphalt Shingle)
The EZ Solar JB-1.2 is a flashed polycarbonate junction box that combines the roof penetration and the wiring transition into one weather-tight unit on asphalt shingle roofs. It is rated to 1000 V and 80 A, takes 14 to 6 AWG conductors, and fits standard shingle slopes from 2.5:12 up to 12:12. UL 1741 listed and built to Type 3R for outdoor rooftop use.
Currently out of stock. Contact us for lead time.
5.036 Google reviews- Listing
- UL 1741
- Material
- Polycarbonate
- Wire size
- 14 to 6 AWG
- Roof slope
- 2.5:12 to 12:12
- What it is
- Flashed rooftop PV junction box for asphalt shingle
- Max current
- 80 A
About this item
The EZ Solar JB-1.2 is a flashed polycarbonate junction box that combines the roof penetration and the wiring transition into one weather-tight unit on asphalt shingle roofs. It is rated to 1000 V and 80 A, takes 14 to 6 AWG conductors, and fits standard shingle slopes from 2.5:12 up to 12:12. UL 1741 listed and built to Type 3R for outdoor rooftop use.
More Accessories

2023 NEC Sticker Pack
This sticker pack covers the labels and placards a solar install needs to pass inspection under the 2023 NEC. It includes the rapid shutdown placards, disconnect and inverter markings, conduit labels, and the power source directory, all printed on durable weather-rated stock that meets the code’s permanence rules. One pack handles the common warning and identification points on a typical residential system.
$20
BOSS Box
The EG4 BOSSBox is a freestanding outdoor cabinet that houses your EG4 batteries and hybrid inverters in one weatherproof package, so you skip the wall mounting and the extra labor. The NEMA 3R steel enclosure holds up to three WallMount batteries and two hybrid inverters, and it cools through passive vents with no fans to fail. A clean way to set up whole-home backup or off-grid storage.
$2,899.99
EG4 Ethernet Adapter
This is EG4's wired monitoring adapter (part EG4SP18KDLETH), the small box that carries your inverter's data to the EG4 app over a network cable instead of WiFi. It plugs into the inverter's monitoring port, and a standard RJ45 Ethernet line runs from the cable gland on its body back to your router. Three status lights sit on the face so you can read the connection at a glance: INV for the link to the inverter, a cloud light for the reach out to the EG4 portal, and IP for its network address. There is a reset button, and the unit mounts to the inverter with its built-in faceplate. It works across the EG4 inverter line, the 3k Off-Grid being the exception. The reason to run this over the WiFi dongle is that a cable does not drop. If the inverter lives in a garage, a shop, or a back corner where the WiFi is thin, a wireless adapter that keeps falling offline leaves gaps in your history and an app that shows nothing right when you want a look. Wire it straight to the router and the link stays up, so the numbers keep coming in. If there is a network jack anywhere near the inverter, this is the steadier way to keep eyes on the system.
$33