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Quick Start Guide
5
Prepare the electrical connections
5.1
Cable selection
The cable diameter must be suitable for the cable gland used to
ensure the seal effect of the cable gland (IP protection).
5.2
Cable glands
The controller housing has seven entries for M20 cable glands.
Table 5-1: Tightening Torque for Cable Glands, lb-ft (Nm)
Item
Cable gland
Top nut
(1)
Only supplied with accessory gland kit.
Table 5-2: Cable Diameter for Glands, in. (mm)
Cable Ø
(1)
Only supplied with accessory gland kit.
5.3
Terminal connection type
Spring loaded terminals
5.4
Conductors
Ensure that you use cables suitable for the terminal blocks.
Table 5-3: Cables Suitable for Rosemount 3490 Terminal Blocks
Conductor connection
Solid
Flexible
Flexible, Ferrule with plastic
collar
14
Cable gland
3.0 (4.0)
2.2 (3.0)
Cable gland
0.16-0.55 (4-14)
Maximum (mm
4
2.5
1.5
Ethernet cable
gland
(1)
3.3 (4.5)
3.3 (4.5)
Ethernet cable
gland
(1)
0.27 (6.9)
2
)
AWG
12
13
16
Emerson.com/Rosemount
May 2023
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