PVAF-R4-15A24-000, Airpax, Solar arc fault detector, 4 CT's, rated 15 amps @ 24 VDC, circuit board only.
This version has stand-off mounting holes. Enables compliance with 2011 US National Electric Code (NEC 2011 Article 690.11). Up to 4 CTs / 4 strings per device. Each CT detects arcs on conductors up to 15A, 1000VDC (60A for entire device). Multiple devices can be nested for larger numbers of strings. Applications in combiner boxes or string inverters. UL recognized. In order to meet NEC 2011 using this product, the customer must integrate and UL list the PVAF as part of a system which includes a means of mitigating the arc fault, such as an electrical disconnect device.