$26.49
Regular price
$26.49
275 IN STOCK
EZ SOLAR Rooftop PV Junction Box JB-3
EZ SOLAR Rooftop PV Junction Box JB-3
Available
MPN No: JB-3
Regular price
$26.49
Expected ship date Jun 11 - 18
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We offer multiple secure payment options for your convenience
Regular price
$26.49
EZ SOLAR Rooftop PV Junction Box JB-3
MPN No:
JB-3
Expected ship date Jun 11 - 18
EZ Solar Rooftop PV Junction Box JB-3
The EZ Solar JB-3 Rooftop PV Junction Box is a rugged, weather-resistant enclosure designed to simplify rooftop solar wiring and protect critical PV connections. Built for durability and compliance, the JB-3 provides a clean, professional solution for managing string connections and transition points in photovoltaic systems.
Whether you’re installing on residential or commercial rooftops, the JB-3 offers long-term reliability in demanding outdoor environments.
Key Benefits
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UL 1741 Listed for safety and code compliance
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NEMA 3R rated for outdoor weather resistance
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UV-inhibited polycarbonate construction
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Lightweight design at just 1.25 lbs
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Optional stainless steel clamps (36–76 mm) for flexible mounting
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Clean, compact footprint for professional rooftop installs
Built for Rooftop Solar
The JB-3 body and lid are manufactured from high-strength polycarbonate with UV inhibitors to withstand sun exposure, rain, and temperature fluctuations.
With a NEMA 3R enclosure rating, it is designed for outdoor use and provides protection against rain and sleet while allowing proper ventilation. Its compact dimensions help maintain organized wiring without adding unnecessary bulk to the array.
What’s Included
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JB-3 Body (Polycarbonate with UV inhibitors)
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JB-3 Lid (Polycarbonate with UV inhibitors)
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(5) #8 x 3/4" Phillips pan head screws
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Optional 36–76 mm stainless steel clamps (if selected)
Product Specifications
| Specification | Details |
|---|---|
| Model | JB-3 |
| Material | Polycarbonate with UV inhibitors |
| Certification | UL Standard 1741 |
| Enclosure Rating | NEMA 3R |
| Weight | 1.25 lbs |
| Torque Specification | 15–20 lbs |
| Revision | Rev B |
Dimensions
| Measurement | Inches | Millimeters |
|---|---|---|
| Lid Width | 8.58 in | 218.02 mm |
| Lid Height | 6.08 in | 154.52 mm |
| Internal Opening Width | 8.36 in | 212.17 mm |
| Internal Opening Height | 5.85 in | 148.67 mm |
| Body Height | 5.52 in | 140.28 mm |
Why Choose the JB-3?
The EZ Solar JB-3 is purpose-built for rooftop PV applications where durability, compliance, and installation efficiency matter. Its UV-stabilized enclosure ensures long service life in full-sun exposure, while its UL listing and NEMA rating provide confidence during inspections.
If you need a dependable rooftop junction solution that installs cleanly and performs reliably, the JB-3 delivers.
Need help confirming compatibility with your system? Our team can help make sure you’re ordering the right components for your project.
