Prepare The Electrical Connections - Emerson Rosemount 5408 Quick Start Manual

June 2019
6

Prepare the electrical connections

6.1 Cable selection
Table 6-1: Recommended Cable Size
Protocol
4–20 mA/HART
F
OUNDATION
Twisted pairs and shielded wiring are recommended for environments with
high EMI (electromagnetic interference).
Use wire rated at least 5 °C above maximum ambient temperature.
Two wires can be safely connected to each terminal screw.
6.2 Cable gland/conduit
For explosion-proof/flameproof installations, only use cable glands or
conduit entry devices certified explosion-proof or flameproof.
6.3 Power consumption
Max. 1 W, current max. 23 mA
6.4 Grounding
Make sure grounding is done according to national and local electrical
codes. Failure to do so may impair the protection provided by the
equipment.
Transmitter housing
The most effective grounding method is direct connection to earth ground
with minimal impedance. There are two grounding screw connections
provided (see
Quick Start Guide
Wire diameter
®
24-14 AWG
™
Fieldbus 18 AWG, Fieldbus type A cable
Figure 6-1).
Quick Start Guide
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