SolaDeck 0399 Universal Rail Mount Metal Junction Box

SolaDeck 0399 Universal Rail Mount

SolaDeck 0399 Universal Rail Mount Junction Box is a steel-constructed, weather-resistant enclosure designed for solar PV and electrical applications. This junction box is built from 20-gauge G90 galvanized steel with a durable black powder-coated finish, offering corrosion resistance and long-term durability in harsh outdoor environments.

Engineered for universal rail mounting, the 0399 model features a seamless stamped (drawn) design, eliminating welds and weak points. The interior provides 162 cubic inches of workspace, ideal for complex wiring tasks. It comes equipped with a 35mm slotted DIN rail and a ground block preinstalled, streamlining installation.

Rated for 1000 VDC/100 amps and 240 VAC/100 amps, the 0399 complies with UL 1741, UL50 Type 3R, and CSA C22.2 No. 290 standards. It is designed to operate in extreme temperatures ranging from -35°C to +75°C. Additional features include four ¾” knockouts (no drilling required), a ¼” ground wire knockout, and a slotted cover secured with a single set screw.