Emerson Rosemount 3490 Series, Reference Manual

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Dimensional drawings
Making electrical connections on wall-mount units
3.3.3 Mounting the NEMA 4X-rated wall mount version
Procedure
1. Mount the unit on a suitable wall or structure using the fixing points.
2. Make the electrical connections.
Related information
Installation guidelines for the NEMA 4X-rated wall mount version
Dimensional drawings
Making electrical connections on wall-mount units
3.4 Electrical installation
WARNING
It is the responsibility of the installer to:
Refer to safety data and electrical specifications in Specifications and reference data .
Refer to the certifications and control drawings in Product certifications .
Check and obtain any work permits required before applying power to the unit.
Observe all local regulations and approval requirements.
Ensure the wiring is suitable for the load current.
Ensure the wiring insulation is suitable for the voltage, temperature, and environment of
the installation.
Drill holes in the base of the NEMA
®
4X-rated control unit for fitting cable glands.
Ensure suitable cable glands or conduit connections are used when wiring to the control
unit to maintain enclosure integrity.
Never remove or modify the mechanical barriers separating the terminal area from the
main enclosure and separating the transmitter input terminals from other terminals.
3.4.1 Making electrical connections on wall-mount units
Note
Use only 167 °F (75 °C) copper conductors for field wiring.
All field wiring connections are accessible by removing the lower terminal cover, which is
secured by two screws on the IP-rated version and by four screws on the NEMA 4X rated
version.
The cabling between the Rosemount 3490 Series Control Unit (“control unit”) and a
transmitter should be a screened (shielded), twisted-pair type with the cable screen
Reference Manual Installation
00809-0100-4841 January 2021
Emerson.com/Rosemount 23