A junction block must not work if its operating temperature drops below -25°C. But the junction blocks should be set at 60°C. Current 4A is the design current of the junction blocks. In the junction blocks, the voltage is rated at 24V.
2736848 Features
Moisture Sensitivity Level: 1 (Unlimited) Fieldline Series Min Operating Temperature: -25°C Max Operating Temperature: 60°C Ratings: IP65
2736848 Applications
There are a lot of Phoenix Contact 2736848 Junction Blocks applications.