Siemens SIWAREX JB Operating Instructions Manual page 24

Connecting
6.1 Basic safety instructions
Mixing intrinsically safe and non-intrinsically safe circuits
Danger of explosion in hazardous areas.
• Connect either only intrinsically safe or only non-intrinsically safe circuits. Mixing is not
NOTICE
Loss of degree of protection
Damage to device if the enclosure is open or not properly closed. The degree of protection
specified in the technical specifications is only guaranteed if the device is installed correctly.
• Keep sealing surfaces clean.
• Close any unused openings in the junction box enclosure using a cap screw.
NOTICE
Incorrect connection to screw-type terminals
Short-circuit or contact problems.
The stripped litz wire may buckle when it is inserted into the terminal. In this case, the cable
is clamped to the insulation.
• Use end sleeves for small conductor cross-sections.
• Remove dirt or cable residue from the enclosure.
NOTICE
Condensation in the device
Damage to device through formation of condensation if the temperature difference between
transportation or storage and the mounting location exceeds 20 °C (36 °F).
• Before taking the device into operation let the device adapt for several hours in the new
NOTICE
Ambient temperature too high
Damage to cable sheath.
• At an ambient temperature ≥ 60 °C (140 °F), use heat-resistant cables suitable for an
24
WARNING
allowed.
environment.
ambient temperature at least 20 °C (36 °F) higher.
Operating Instructions, 12/2017, A5E43011851-AA
SIWAREX JB