New Product: Two-rail decentralized junction box from Tyco requires 50% less jumper cable

August 2, 2010
Facebook
Twitter
LinkedIn
Reddit
Email

Product Briefing Outline: Tyco Electronics now offers a new way for locating junction boxes on a PV panel. Compared to the commonly used centralized junction boxes in the PV industry, the new two-rail decentralized junction box requires 50% less jumper cable to connect to the next solar panel, as the junction boxes are located in the corner of the panels.

Problem: Through the decentralization of the two-rail junction boxes, panel manufacturers are able to use less and shorter cross connects (saving labour and costs) because every string is protected by one junction box with 1 diode.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Solution: The decentralized junction box uses less cross-connects than standard centralized boxes, offers excellent thermal management capabilities and enables engineers to design new innovative solar panel layouts. The general design idea is using two small two-rail junction boxes separately located in the corners of the solar panels plus one small junction box in the middle (compared with the common standard layout of one bigger four-rail junction box with three diodes in the centre of the panel).

Applications: PV Modules junction boxes.

Platform: With this new design concept it is easy to enlarge solar panel layouts by just adding a junction box in the centre to protect additional strings. No complicated routing is required. The low profile design (only 18.5mm height) of the two-rail decentralized junction box enables the device to be easily terminated with the slim line connector system by Tyco Electronics. The new decentralized junction box meets IEC 61215 ed.2 (VDE V 0126-5) specifications.

Read Next

October 20, 2025
Independent power producer (IPP) Atlas Renewable Energy has secured up to US$475 million in financing for a 357MW solar-plus-storage project in Chile.
October 20, 2025
New federal policies in the US will 'cloud' the country’s renewable energy sector, according to a webinar hosted by Wood Mackenzie.
October 20, 2025
Spain has amended its national common agricultural policy (PAC) framework to include agrivoltaic (agriPV) systems to be eligible for subsidies.
October 20, 2025
Details of tariffs on US imports of polysilicon products may be announced as early as the end of this month, according to a note from investment bank Roth Capital.
October 20, 2025
Bahrainian authorities are inviting initial proposals from developers to build a 100MW solar project in the country, due for commercial operation by September 2027.
Premium
October 17, 2025
According to Ronak Maheshwari of CRC-IB, there has been a struggle for US renewable power projects to secure necessary equity .

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK