EzSolar FORTIS 100 PV Junction Box - Asphalt Shingle JB-F.100 (Previously JB-1.2)

EzSolar FORTIS 100 PV Junction Box - Asphalt Shingle JB-F.100 (Previously JB-1.2)

Regular price $37.43
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EzSolar FORTIS 100 PV Junction Box - Asphalt Shingle JB-F.100 (Previously JB-1.2)

EzSolar FORTIS 100 PV Junction Box - Asphalt Shingle JB-F.100 (Previously JB-1.2)

Available
MPN No: JB-F.100
Regular price $37.43

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Regular price $37.43

EzSolar FORTIS 100 PV Junction Box - Asphalt Shingle JB-F.100 (Updated JB-1.2)

The EZ Solar JB-F.100 Fortis 100 is a roof-mounted PV junction box designed for composition and asphalt shingle roof applications.

Built for reliable field wiring and durable rooftop performance, this enclosure supports high-voltage solar installations while providing a Type 3R weather-resistant housing for demanding outdoor conditions.

With a maximum voltage rating of 1,500 VDC / 450 VAC, a maximum current capacity of 80 A, and a 100 in³ interior volume, the JB-F.100 is engineered to simplify conductor management and rooftop transitions in photovoltaic systems. It supports a wide wire range and is suitable for roof slopes from 2.5:12 to 12:12.


Key Technology

  • Type 3R Weather-Resistant Enclosure
    Designed for outdoor rooftop use with reliable protection against environmental exposure. 

  • High-Voltage PV Compatibility
    Supports solar applications up to 1,500 VDC / 450 VAC for modern PV systems. 

  • 80 Amp Current Capacity
    Fortis-60 and Fortis-100 models are rated for up to 80 amps.

  • Flexible Wire Acceptance
    Accommodates conductor sizes from 14 AWG to 6 AWG for installation versatility.

  • Roof-Mount Optimized Design
    Engineered specifically for composition and asphalt shingle roofs with a supported slope range of 2.5:12 to 12:12

  • 100 in³ Interior Volume
    Provides generous internal space for conductor routing and junction management.


Best Uses

  • PV Roof Junction Applications
    Ideal for rooftop conductor transitions and junction points in photovoltaic systems.

  • Composition Shingle Roof Installations
    Designed specifically for composition and asphalt shingle roofing systems.

  • Residential Solar Installations
    Suitable for home solar arrays requiring a weather-resistant rooftop junction enclosure.


Product Specifications

Specification Details
Manufacturer EZ Solar Products
Model JB-F.100
Series Fortis 100
Product Type PV Junction Box
Roof Type Composition / Asphalt Shingle Roofs
Maximum Voltage 1,500 VDC / 450 VAC
Maximum Current 80 Amps
Allowable Wire Size 14 AWG – 6 AWG
Enclosure Rating Type 3R
Roof Slope Range 2.5:12 – 12:12
Max Side Wall Fitting Size 1 in
Max Floor Pass-Through Fitting Size 1 in
Ambient Operating Conditions -35°C to +75°C
Interior Volume 100 in³
Compliance UL1741, CSA C22.2 No. 290
System Marking Intertek Symbol, File #5029623

 

About EZ Solar Products:

EZ Solar Products manufactures solar electrical and mounting components designed to simplify installation and support reliable long-term field performance. Its Fortis series junction boxes are built for rooftop PV applications requiring durable enclosures and code-compliant conductor management. 


Durable Rooftop Junction Management for PV Systems

The EZ Solar JB-F.100 Fortis 100 combines weather-resistant construction, high-voltage compatibility, and flexible conductor support to deliver dependable rooftop junction box performance for solar installations.

 

Why Buy From US Solar Supplier

US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.

Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.


Need Assistance?

Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.