Ukk Junction Boxes Have The Following Outdoor Temperature Requirements: -55°c To +55°c.

This temperature range definition reflects that, in both frigid and high-temperature environments, the materials and structures of distribution blocks electrical must maintain the integrity of their electrical connections and physical stability. Under low-temperature conditions, the upper and lower temperature ranges cover high-latitude and harsh winter environments, enabling the power terminal block to adapt to most outdoor application scenarios and the thermal expansion and contraction requirements of the wiring components.

Many outdoor branch/connection devices typically have operating temperature settings concentrated in a narrower range, while the din rail distribution block box has a wider temperature range design, which is more conducive to maintaining consistent connection performance under different regional climate conditions.