Installation Regulations; Special Notes Including Explosion Protection - WAGO 750-637 Series Manual

60 Use in Hazardous Environments
8.2

Installation Regulations

For the installation and operation of electrical equipment in hazardous areas, the
valid national and international rules and regulations which are applicable at the
installation location must be carefully followed.
8.2.1

Special Notes including Explosion Protection

The following warning notices are to be posted in the immediately proximity of the
WAGO I/O System 750 (hereinafter "product"):
WARNING – DO NOT REMOVE OR REPLACE FUSED WHILE ENERGIZED!
WARNING – DO NOT DISCONNECT WHILE ENERGIZED!
WARNING – ONLY DISCONNECT IN A NON-HAZARDOUS AREA!
Before using the components, check whether the intended application is
permitted in accordance with the respective printing. Pay attention to any
changes to the printing when replacing components.
The product is an open system. As such, the product must only be installed in
appropriate enclosures or electrical operation rooms to which the following
applies:
• Can only be opened using a tool or key
• Inside pollution degree 1 or 2
• In operation, internal air temperature within the range of 0 °C ≤ Ta ≤ +55 °C
or −20 °C ≤ Ta ≤ +60 °C for components with extension number .../025-xxx
or −40 °C ≤ Ta ≤ +70 °C for components with extension number .../040-xxx
• Minimum degree of protection: min. IP54 (acc. to EN/IEC 60529)
• For use in Zone 2 (Gc), compliance with the applicable requirements of the
standards EN/IEC/ABNT NBR IEC 60079-0, -7, -11, -15
• For use in Zone 22 (Dc), compliance with the applicable requirements of
the standards EN/IEC/ABNT NBR IEC 60079-0, -7, -11, -15 and -31
• For use in mining (Mb), minimum degree of protection IP64 (acc. EN/IEC
60529) and adequate protection acc. EN/IEC/ABNT NBR IEC 60079-0 and
-1
• Depending on zoning and device category, correct installation and
compliance with requirements must be assessed and certified by a "Notified
Body" (ExNB) if necessary!
Manual
Version 1.6.1
750-637 Incremental Encoder Interfaces
Public
WAGO I/O System 750