Description

The EZ Solar JB‑3 is a universal, outdoor‑rated PV junction box engineered for fast, secure mounting on any solar rail or module frame. With self‑leveling stainless steel clamps and a durable polycarbonate enclosure, the JB‑3 delivers a clean, watertight wiring solution for residential and commercial rooftop solar installations.

Key Features

• Universal mounting — attaches to any rail (square or round) or module frame using stainless steel clamps

• Self‑leveling design for quick, accurate installation

• Weatherproof enclosure — NEMA 3R rated for outdoor use

• Leak‑proof construction for long‑term reliability

• Fast installation with EZ Solar’s simplified mounting system

• Made in the USA (per EZ Solar product line)

Specifications

• Part Number: JB‑3

• Material: UV‑resistant polycarbonate enclosure + stainless steel clamps

• Interior Volume: 109 in³ (per detailed spec listings)

• Certifications: UL 1741 & CSA C22.2 No. 290 (per distributor spec)

• Electrical Rating: Up to 1,000 VDC, 80A continuous (per distributor spec)

• Cable Entry: Multiple entry points on three sides

• Mounting: Rail‑mount or panel‑mount

• Weather Rating: NEMA 3R outdoor rated

What’s Included

• JB‑3 junction box

• Universal stainless steel mounting clamps

• DIN rail and neutral bus (per distributor spec)

Common Uses

• Rooftop PV wiring transitions

• Rail‑mounted or module‑mounted junction points

• Residential and commercial solar installations

• Systems requiring a compact, clean, leak‑proof junction box

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