Square D is one of the most trusted names in electrical distribution, solar power and control. Partnering with Schneider Electric, Square D offers reliable and long-withstanding solar products to solar installers such as AC and DC disconnects. Square D fusible and non-fusible disconnects are all NEMA rated. Disconnects come in different sizes depending on the voltage and ampere rating. CivicSolar sells Square D disconnects at the lowest price.