Molex has released the SolarSpec junction box and cable assemblies, designed to interface replaceable cables with the back of photovoltaic (PV) solar modules.

The 106x78x20mm box is in two parts.

On part is bonded to the back of the panel - there are both glue and adhesive tape versions - and makes contact with the panel’s conductor ribbons using springs, or there is a machine solderable version.

“The automated fabrication of PV modules improves efficiencies, product integrity and reduces production overhead,” claimed Peter Commane, product manager Molex Incorporated. “The junction box is specially designed for pick-and-place panel assembly.”

The second part, the top cover of the box, carries cable connectors, forms an enclosure with the first part, and completes the cable-panel circuit as it is assembled onto the first part.

It is supplied with two removable DC cables available in dual-qualified (TÜV and UL) or single-qualified (TÜV) versions.

Bypass diodes are built into the top cover to protect the PV panel from reverse current during hours of darkness, shade or when covered by leaves.

Voltage rating is 1,000V dc(max) - 60V per module - and max current is 9A.

Operating temperature is -40 to 80°C.