There must be a minimum operating temperature of 0°C for these junction blocks to work. You should set the junction block's maximum operating temperature to 60°C. When a junction block operates, its voltage should be 24V.
1906710000 Features
Moisture Sensitivity Level: 1 (Unlimited) Min Operating Temperature: 0°C Max Operating Temperature: 60°C
1906710000 Applications
There are a lot of Weidmüller 1906710000 Junction Blocks applications.