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Tesla 4J 4-String Junction Box, Black
Regular price $128.66Orders start at $399 — combine any items to reach the minimum. Learn more
Tesla 4J 4-String Junction Box, Black
The Tesla 4J 4-String Junction Box in black is a Tesla Balance of Systems enclosure for combining up to four solar strings. It is sold as a single piece (PC). Pair it with Tesla connectors, jumpers and wire management accessories.
Key Features:
- 4-string capacity: Provides a 4-string junction point for solar array wiring.
- Black enclosure: Supplied in black to blend with roofline and mounting hardware.
- Tesla system part: A designated Tesla component within the Balance of Systems category.
- Single-piece unit: Sold and ordered as one piece.
- Centralized combining: Consolidates string terminations into one protected enclosure.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Tesla |
| Sell unit | 1 piece |
| Product line | Tesla Solar Balance of Systems - Junction Boxes & Enclosures |
| Available colors | Black (1 item listed) |
| Intended use | 4-string solar junction enclosure |
| Pack quantity | 1 (PC) |
Fit and Compatibility:
Part of the Tesla solar Balance of Systems line; intended for use with Tesla string wiring, connectors and jumpers. Enclosure entry fittings and internal hardware are not specified in the sources.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One Tesla 4J 4-String Junction Box in black, sold as a single piece.
Q: How many strings does it accept?
A: It is designated as a 4-string junction box, so up to four strings at a combiner point.
Q: What color is it?
A: Black.
Q: Does it come with fuses or lugs?
A: Internal contents are not stated in the sources; check Tesla documentation for included components.
Q: Where is it mounted?
A: Mounting location and hardware are not specified in the sources; follow Tesla installation instructions.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
A 4-string junction box keeps parallel string terminations organized and protected; map your string count before ordering so you are not short a combiner point. Keep the enclosure accessible for service while staying clear of roof traffic, and use Tesla-specified entry methods to preserve the intended protection. Verify conductor sizes and fusing requirements against your system design documentation.
All string combining and enclosure wiring should be done de-energized by a qualified installer per local electrical codes.
Add the Tesla 4J 4-String Junction Box to consolidate your solar strings neatly.
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