Special Notes Regarding Ul Hazardous Location - WAGO 750-637 Series Manual

62 Use in Hazardous Environments
8.2.2

Special Notes Regarding UL Hazardous Location

For UL Hazardous Location acc. to UL File E198726, the following additional
requirements apply:
• Use in Class I, Division 2, Group A, B, C, D or non-hazardous areas only
• ETHERNET connections are used exclusively for connecting to computer
networks (LANs) and may not be connected to telephone networks or
telecommunication cables
• WARNING – The radio receiver module 750-642 may only be used to
connect to external antenna 758-910!
• WARNING – Product components with fuses must not be fitted into circuits
subject to overloads!
These include, e.g., motor circuits.
• WARNING – When installing I/O module 750-538, "Control Drawing No.
750538" in the manual must be strictly observed!
Additional Information
Proof of certification is available on request.
Also take note of the information given on the operating and assembly
instructions.
The manual, containing these special conditions for safe use, must be readily
available to the user.
Manual
Version 1.6.1
750-637 Incremental Encoder Interfaces
Public
WAGO I/O System 750